The Kynix Components

European Safety Standard Approved Type Long Creepage Distance Photocoupler CatalogDescriptionPC123 PinoutCAD ModelProduct AttributesReplacement and Equivalent Part NumbersFeaturesApplicationsPC817 vs PC123PC123 DatasheetManufacturer DescriptionPC123XxYSZ1B Series contains an IRED opticallycoupled to aphototransistor.It is packaged in a 4-pin DIP, available in wide-leadspacing option and SMT gullwing lead-formoption.Input-output isolation voltage(rms) is 5kV.CTR is 50% to 400% (at IF=5mA,VCE=5V,Ta=25℃)  PC123 PinoutPC123 Pinout  CAD ModelCAD Model Footprint  Product Attributespc123 TYPEDESCRIPTIONCategoryIsolators Optoisolators - Transistor, Photovoltaic OutputMfrSharp MicroelectronicsSeries-PackageTubePart StatusObsoleteNumber of Channels1Voltage - Isolation5000VrmsCurrent Transfer Ratio (Min)50% @ 5mACurrent Transfer Ratio (Max)600% @ 5mATurn On / Turn Off Time (Typ)-Rise / Fall Time (Typ)4s, 3sInput TypeDCOutput TypeTransistorVoltage - Output (Max)70VCurrent - Output / Channel50mAVoltage - Forward (Vf) (Typ)1.2VCurrent - DC Forward (If) (Max)50 mAVce Saturation (Max)200mVOperating Temperature-30C ~ 100CMounting TypeThrough HolePackage / Case4-DIP (0.300", 7.62mm)Supplier Device Package4-DIP Replacement and Equivalent Part NumbersThe replacement and equivalent of PC123 optocoupler are PC816, PC817,  TLP621, TLP321, TLP421, PC17K1, H11A817, SFH615A, PS2501-1, PS2561-1, PS2571-1, LTV-816, LTV-817(-V), LTV123, LTV-610 K1010, K817P, SFH615A  Features4-pin DIPpackageDouble transfer mold package    (Ideal for Flow Soldering)Current transfer ratio       (CTR : MIN. 50% at IF=5 mA, VCE=5V, Ta=25℃)Several CTR ranksavailableReinforced insulation type      (Isolation distance : MIN. 0.4mm)Long creepage distance type        (wide lead-form type only : MIN.8mm)High isolation voltage between input and output        (Viso(rms) :5kV)RoHS directivecompliant ApplicationsI/O isolation for MCUs (Micro Controller Units)Noise suppression in switchingcircuitsSignal transmission between circuits of different potentials andimpedancesOver voltagedetection PC817 vs PC123Part NumberPC817PC123Rohs CodeNo Part Life Cycle CodeObsoleteObsoletePackage DescriptionDIP-4O-LALF-W2Reach Compliance CodeunknownunknownAdditional FeatureUL RECOGNIZEDHIGH QColl-Emtr Bkdn Voltage-Min35 V ConfigurationSINGLESINGLECurrent Transfer Ratio-Nom0.5 Dark Current-Max100 nA Forward Current-Max0.05 A Isolation Voltage-Max5000 V JESD-609 Codee0e0Number of Elements11Operating Temperature-Max100 C150 COperating Temperature-Min30 C65 COptoelectronic Device TypeTRANSISTOR OUTPUT OPTOCOUPLER Terminal FinishTin/Lead (Sn/Pb)TIN LEAD  PC123 DatasheetPC123 Datasheet ManufacturerSharp Microelectronics of the Americas (SMA) drives innovative LCD, optoelectronics, memory, imager, and RF components to market. The world's leading manufacturers of consumer and business technologies look to SMA for the products, expertise, and worldwide support they need to make their visions a reality. SMA, in Camas, Washington, is the microelectronics sales and marketing division of Sharp Electronics Corporation, a wholly owned subsidiary of Sharp Corporation. 

I Description4N25 is a 6-pin phototransistor coupler. This blog describes the nonlinear and linear applications of the 4N25 based on its transmission features.CatalogI DescriptionII 4N25 Optocoupler2.1 4N25 Overview2.2 4N25 Transmission FeaturesIII 4N25 Application Circuit3.1 4N25 Non-linear Application3.2 4N25 Linear ApplicationIV ConclusionComponent DatasheetOrdering & QuantityII 4N25 Optocoupler2.1 4N25 Overview　　The internal circuit structure of the photocoupler 4N25 is shown in Figure 1.Figure 1. 4N25 internal circuit structureThe chip is a dual in-line device, with 6 outer leads, and the input end light emitter is composed of light emitting diodes.1 pin is Anode2 pin is Cathode3 pin is NC4 pin is Emitter5 pin is Collector6 pin is BaseWhen the device Ta=25℃, its limit parameters are:The forward current of the LED is 80mA;The phototransistor set-to-beam voltage is 30V;The total power consumption is 250mW;The insulation withstand voltage between input and output is 2500VDC;Working temperature -55℃～100℃.2.2 4N25 Transmission FeaturesWhen the power supply voltage in the circuit is Vcc=5V, the collector resistance Rc=1kΨ and the base is open, through the online test of the photocoupler 4N25, the data is shown in Table 1.Its transmission features have the following features:When the input current IF=0, the output current IS=0. Indicates that the light-emitting diode does not emit light, and the phototransistor is cut off without light;When the input current IF=0.5mA, the output current IC=0.22mA, IF>IC. Indicates that the light-emitting diode has begun to emit light, and the phototransistor has weak light and is out of the cut-off area;When the input current IF is 1～4mA, the output current IC is 0.7～4.19mA, IF When the input current IF=4.5mA, the output current IC=4.4mA, IF>IC. It shows that IC cannot continue to change linearly when IF increases to a certain extent. After that, the current transfer ratio drops and the photocoupler begins to enter a saturated state.From the above analysis, it can be seen that the size of IF determines the working state of the circuit. If the IF is too large or too small, the circuit works in the nonlinear region of the output features. Only in a certain range, it works in the linear region of the output featuresIII 4N25 Application CircuitThe application circuit composed of the photocoupler 4N25 is shown in Figure 2.R1 is the DC bias resistor. R1 is used to adjust the static operating point of the circuit. After the circuit IF and VF are determined, the resistance of R1 depends on the value of the bias VI, that is, R1=(VI-VF)/IF. In the formula, the value of VI must be at least 2 times of VF.R2 is the collector resistance. The output signal is taken out by R2. The selected resistance of R2 is related to the driving ability of the input signal. The driving ability is strong, and the resistance can be smaller. On the contrary, the resistance value can be larger, and generally can be selected between several hundred to several thousand Ψ.R3 is the base shunt resistance. R3 is used to change the sensitivity to incident light to improve the dynamic performance of the circuit and improve the quality of signal transmission. Its value is generally about several hundred kΨ.C1 is the coupling capacitor. C1 plays the role of blocking the direct communication, and its value is determined by the fundamental frequency of the signal, generally about tens of microfarads.3.1　4N25 Non-linear Application　　Figure 2. 4N25 application circuitFrom the circuit shown in Figure 2:If the resistance of the DC bias resistor R1 is selected to be large, the input static operating current IF is small. At this time, the light emitting diode is in a slightly conducting state.Then, when the input signal is low, the output collector current IC is also very small, the collector-to-emitter voltage UCE is the largest, and the output signal is high.Conversely, when the input signal is at a high level, the light-emitting diode operating current IF is the largest, the output collector current IC is also the largest, the collector-emitter voltage UCE is the smallest, and the output signal is at a low level.If the input is a continuous digital signal, the circuit works in saturation and cut-off state, and the output signal changes with the change of the high and low levels of the input signal, the phase is opposite, and the amplitude is determined by the size of the power supply voltage Vcc.When the circuit is in a non-linear application, the input can have 2 driving modes:Biased indirect drive. That is, the input signal is added through the coupling capacitor.Unbiased DC drive. That is, R1 and C1 are not used, and the input signal is directly added through the current limiting resistor.The difference between the two drive circuits is that the former requires a weak drive capability of the input signal, while the latter requires a strong drive capability of the input signal.In the non-linear application of the photocoupler 4N25, the value of the base shunt resistance R3 has a greater impact on the signal transmission quality.Its value cannot be too small or too large.Too small is not conducive to the current transfer ratio. Because it will prolong the saturation process of the phototransistor, the bottom of the falling edge of the output waveform will slow down.Too large is not conducive to the fast cut-off of the phototransistor. Because, it will cause the top of the rising edge of the output waveform to slow down.Therefore, the resistance of R3 must be appropriate. The influence of R3 resistance on the output waveform is shown in Figure 3.　　Figure 3. The influence of R3 resistance on the output waveform3.2 4N25 Linear ApplicationIn the circuit shown in Figure 2, if the DC bias resistor R1 is selected, the static operating point voltage UCEQ of the phototransistor at the output end is exactly at the midpoint of the linear region of the load line.Then, when the circuit is working dynamically, when the input sine wave signal is of the right size, the voltage and current of each point in the circuit will be based on the static operating point.UF=UFQ+uiSinwtUCE=UCEQ+UceSin(wt-180°), orIF=IFQ+IfSinwtIC=ICQ+IcSinwtA change corresponding to the input signal occurs.It can be seen that the static operating point is the guarantee for the circuit to work linearly.When the power supply voltage Vcc=5V and the collector resistance R2=1kΨ, the passing test circuit has the following features:When the input sine wave signal frequency f=1kHz, Ui=10mV, the maximum undistorted output voltage Uo=812mV. It can be seen that the circuit has a certain amplification capability.From the comparison of input and output waveforms, the circuit can significantly inhibit the noise interference superimposed in the input waveform, so that the output waveform becomes smooth and stable, and the output signal-to-noise ratio is improved. If the frequency of the input signal is changed, when the circuit amplification factor drops to 0.707 times, the upper limit frequency fh=30kHz, and the lower limit frequency fl=30Hz. It can be seen that the circuit has wider amplitude-frequency features.IV ConclusionIn non-linear applications, the photocoupler 4N25 is a high and low level signal because the input and output of the circuit are both high and low levels. Therefore, it is not necessary to set or set a lower static operating point, and the circuit works in a non-linear state. In linear applications, because the signal is transmitted without distortion. Therefore, a suitable static operating point should be set according to the requirements of dynamic work, and the circuit works in a linear state. In addition, the input and output AC and DC circuits of the circuit cannot share the ground, otherwise, it will lose its application features.Component Datasheet 4N25 Datasheet

DescriptionThe CD405xB analog multiplexers and demultiplexers are digitally-controlled analog switches having low ON impedance and very low OFF leakage current. These multiplexer circuits dissipate extremely low quiescent power over the full VDD – VSS and VDD – VEE supply voltage ranges, independent of the logic state of the control signals.The CD4051B is a single 8-Channel multiplexer having three binary control inputs, A, B, and C, and an inhibit input. The three binary signals select 1 of 8 channels to be turned on, and connect one of the 8 inputs to the output.CatalogDescriptionPinout Configuration and FunctionCD4051 Block DiagramDocuments and MediaFeaturesApplicationCD4051 Typical Application CircuitsOrdering & QuantityPinout Configuration and FunctionCD4051 Block DiagramThe logic diagram of CD4051 is composed of three parts: logic level conversion circuit, 8 select 1 decoding circuit and 8 CMOS switch units. A, B and C are 3-bit binary address input terminals, and 8 combinations of 3-bit binary can be used for selection 8 channels; INH is the address input prohibition terminal, when it is high, the address input terminal is invalid, that is, no channel is strobed. The input levels of A, B, C and INH are compatible with TTL. CD4051 has 8 inputoutput terminals, 1 output/input terminal, digital circuit power supply +E and -E1, analog circuit power supply +E and -E2. The main function of the logic level conversion circuit is to input the address A, B , C and address input inhibit terminal INH input TTL logic level is converted into CMOS level, so that the switch unit can be controlled by TTL level. The main function of the 8-to-1 address decoding circuit is to convert the address input signal from the logic level conversion circuit into the corresponding switch unit strobe signal and turn on the corresponding switch unit.Documents and MediaDatasheetCD405xB CMOS Single 8-Channel Analog Multiplexer/Demultiplexer with Logic-Level Conversion datasheet (Rev. I)FeaturesWide Range of Digital and Analog Signal LevelsDigital: 3 V to 20 VAnalog: ≤ 20 VP-PLow ON Resistance, 125 Ω (Typical) Over 15 VP-P Signal Input Range for VDD – VEE = 18 VHigh OFF Resistance, Channel Leakage of±100 pA (Typical) at VDD – VEE = 18 VLogic-Level Conversion for Digital Addressing Signals of 3 V to 20 V (VDD – VSS = 3 V to 20 V) to Switch Analog Signals to 20 VP-P (VDD – VEE = 20 V) Matched Switch Characteristics, rON = 5 Ω (Typical) for VDD – VEE = 15 V Very Low Quiescent Power Dissipation Under All Digital-Control Input and Supply Conditions, 0.2 µW (Typical) atVDD – VSS = VDD – VEE = 10 VBinary Address Decoding on Chip5 V, 10 V, and 15 V Parametric Ratings100% Tested for Quiescent Current at 20 VMaximum Input Current of 1 µA at 18 V Over Full Package Temperature Range, 100 nA at 18 V and 25°CBreak-Before-Make Switching Eliminates Channel OverlapApplicationAnalog and Digital Multiplexing and DemultiplexingA/D and D/A ConversionSignal GatingFactory AutomationTelevisionsAppliancesConsumer AudioProgrammable Logic CircuitsSensorsCD4051 Typical Application Circuits1.CD4051, CH3130 multi-channel demodulator circuit diagramThis circuit is mainly composed of 8-channel analog switch CD4051 and voltage follower CH3130, etc. The input signal of the prohibition terminal "INH" of analog switch CD4051 is used to control the gating of voltage follower CH3130, thereby perform demodulation to multiple analog signals.2. CD4051 constructs 32-channel circuitBecause the CD4051 has only eight input ports, four CD4051s are needed to build a 32-way multiplexer, labeled INH1, INH2, INH3, and INH4.The 32-way multiplexer should have 5 control ports, of which the first three are the input ports of CD4051 and the last two are control ports. (Because CD4051 has three input ports), label them as D1, D2, D3, D4, D5 (00000—11111, 00000 channel 0, 11111 channel 31).The basic idea is to realize the choice of 32 channel ports (0-7, 8-15, 16-23, 24-31) by selecting 4 CD4051s. If you choose the third CD4051, you can choose 16-23 (10000-10111) channel port.However, the selection of CD4051 is achieved by controlling the INH level of each CD4051. For example, if you want to turn on the third CD4051, make its INH high (at this time D5=1, D4=0, then INH3=D5&! D4). Therefore, the choice of INH is achieved by controlling the logical relationship between D5 and D4. Where INH1=! D5&! D4;INH2=! D5&D4;INH3=D5&! D4;INH4=D5&D4. 

LM338 is an adjustable 3-terminal positive voltage regulator which capable of supplying in excess of 5A over a 1.2V to 32V output range. This blog will introduce LM338 from its pinout, features to its application circuits, datasheet and including some other information.CatalogLM338 DescriptionLM338 PinoutLM338 FeaturesLM338 ParameterLM338 Functional Block DiagramLM338 Schematic DiagramLM338 CircuitLM338 ApplicationLM338 PackageLM338 ManufacturerComponent DatasheetFAQLM338 DescriptionThe LM338 is an adjustable 3-terminal positive voltage regulator which capable of supplying in excess of 5A over a 1.2-V to 32-V output range. It is exceptionally easy to use and require only 2 resistors to set the output voltage. Careful circuit design has resulted in outstanding load and line regulation, comparable to many commercial power supplies. The LM338 voltage regulator offers full overload protection. The LM338 supplied in a standard 3-lead transistor package. Normally, no capacitors are needed unless the device is situated more than 150 mm (6 inches) from the input filter capacitors in which case an input bypass capacitor is required. An optional output capacitor can be added to improve transient response. The adjustment terminal of the regulator can be bypassed to achieve very high ripple rejection. Refer to the adjustable regulator data sheets below for more information about the LM338 adjustable voltage regulator.LM338 PinoutLM338LM338 PinoutLM338 FeaturesSpecified 7-A Peak Output CurrentSpecified 5-A Output CurrentAdjustable Output Down to 1.2 VSpecified Thermal RegulationCurrent Limit Constant With TemperatureP+ Product Enhancement TestedOutput is Short-Circuit ProtectedLM338 ParameterManufacturer:Texas InstrumentsSeries:-Packaging:TubePart Status:ActiveOutput Configuration:PositiveOutput Type:AdjustableNumber of Regulators:1Voltage - Input (Max):40VVoltage - Output (Min/Fixed):1．24VVoltage - Output (Max):32VVoltage Dropout (Max):-Current - Output:5APSRR:75dB ~ 60dB (120Hz)Control Features:-Protection Features:Over Temperature Short CircuitOperating Temperature:0°C ~ 125°CMounting Type:Through HolePackage / Case:TO-220-3Supplier Device Package:TO-220-3Base Part Number:LM338LM338 Functional Block DiagramLM338 Schematic DiagramYou can use this Voltage Regulator Calculator to vary the value of the program resistor (R1) and output set resistor (R2) and calculate the output voltage for the LM338 of three terminal adjustable voltage regulator.  This Voltage Regulator Calculator will work for all voltage regulators with a reference voltage (VREF) of 1.25. For the LM338 and LM350 regulators, 120 ohms is typically used for the program resistor R1. However, other values such as 150 or 220 ohms can also be used for R1. The LM338 voltage regulator can also be configured to regulate current in a circuit.LM338 Schematic diagramLM338 CircuitThe following schematics show typical circuit applications for the LM338 voltage regulator.Note: The dropout voltage of the IC regulator is about 1.5 to 2.5 Volts, depend on the output current (IOUT). Therefore, the input voltage to the  LM338 regulator will need to be at least 1.5V to 2.5V greater than the desired output voltage. Plan to be about 3V of  the desired output voltage. You don't want to use too high an input voltage as the excess will need to be dissipated as heat through the regulator.  See the datasheets of the voltage regulator above for specific details on the voltage drop-off and heatsink requirements.Figure 1. 1.2 to 25V Adjustable Voltage RegulatorWhen using external capacitors with a voltage regulator it may be necessary to use protection diodes to prevent the capacitors from discharging through low current points into the voltage regulator. Even small capacitors can have a low enough internal series resistance to be able to deliver 20A spikes when shortened. Although the surge is very short in duration, there is enough energy to damage parts of the regulator IC. No protection diodes are required for output voltages of less than 25V or greater than 10 uF capacitance. Figure 2 shows the LM338 with protection diodes included for use with voltage outputs greater than 25V and high values of output capacitance.Figure 2. Adjustable Voltage Regulator with Protection DiodesSolid tantalum capacitors can be used on the voltage output to improve the ripple rejection of the voltage regulator.Figure 3. Adjustable Voltage Regulator with Improved Ripple RejectionLM338 ApplicationAdjustable Power SuppliesConstant Current RegulatorsBattery ChargersLM338 PackageLM338 ManufacturerTexas Instruments Incorporated (TI) is an American technology company headquartered in Dallas, Texas, that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. It is one of the top 10 semiconductor companies worldwide based on sales volume. The company's focus is on developing analog chips and embedded processors, which account for more than 80% of its revenue. TI also produces TI digital light processing technology and education technology products including calculators, microcontrollers and multi-core processors. The company holds 45,000 patents worldwide as of 2016.Component DatasheetLM338 Voltage Regulator DatasheetFAQWhat is lm338?The LM138/LM238/LM338 are adjustable 3-terminal positive voltage regulators capable of supplying in excess of 5A over a 1.2V to 32V output range.What is the current rating of voltage regulator IC LM338 K?The LM317 / LM338 / LM350 family of adjustable 3-terminal positive voltage regulators can take a input of 3 to 40 Volts DC and provide a regulated voltage over a 1.2V to 37V output range. The LM317 voltage regulators can provide up to 1.5 Amperes (A) of output current.What is adjustable voltage regulator?An adjustable voltage regulator produces a DC output voltage, which can be adjusted to any other value of certain voltage range. Hence, adjustable voltage regulator is also called as a variable voltage regulator. The DC output voltage value of an adjustable voltage regulator can be either positive or negative.What is function of voltage regulator?A voltage regulator generates a fixed output voltage of a preset magnitude that remains constant regardless of changes to its input voltage or load conditions. There are two types of voltage regulators: linear and switching.How do you test a voltage regulator?The best way to test a voltage regulator is with a multimeter, and what you do is you put your multimeter clamps directly on the battery terminals. Positive read to positive and black to negative. And you said it to voltage, and with the car off, you should have a little over 12 volts. That's that's a healthy battery. 

CR2450 Lithium 3.0V battery is a non-rechargeable button/coin cell battery. In today's vlog, we'll have a detailed introduction to CR2450 lithium battery, after reading this blog, you will learn what is CR2450, what's its features, in which country it is the most popular, and what's its difference between CR2032, which one is more worth buying etc.CatalogCR2450 DescriptionCR2450 FeaturesCR2450 ParameterCR2450 vs CR2032CR2450 ApplicationCR2450 PopularityCR2450 PackageCR2450 ManufacturerComponent DatasheetFAQCR2450 DescriptionCR2450 is commonly used in watches, computer motherboards, medical devices, LED flashlights, toys, remote controls, remote car keys, security systems, wearable electronics, etc. Compared to smaller 3.0V lithium batteries, the CR2450 is a large and powerful battery with a large capacity and is often used in 'high' drain devices. The CR2450 battery has a diameter of 24 mm (~0.945 inches) and a height of 5.0 mm (~0.197 inches) and a weight range of 5.7-6.3+ grams (0.2-0.222+ ounces). The CR2450 battery has a negative electrode made of lithium and a positive electrode made of manganese-dioxide, so its label starts with 'CR.' The standard label for the 2450 manganese-dioxide positive electrode lithium battery is CR2450, although other labels are also used, such as 5029LC, DL2450, ECR2450, CR2450N, CR-2450, CR2450EL, CR-2450EL, CR-2450EL, etc.CR2450 FeaturesLightweight, High Voltage and High Energy DensityThe battery voltage is 3V, almost double that of normal alkaline or manganese batteries. This means that the number of batteries required for equipment can be halved for maximum space saving and weight reduction. Excellent Discharge CharacteristicsVoltage characteristics remain stable even for a long period of discharge, greatly improving the reliability of equipment that uses the battery. Such equipment is also maintenance-free (battery replacement is seldom required). Excellent Leakage ResistanceThe newly developed battery construction and electrolyte ensure maximum leakage resistance over a long span of time. Excellent Long-Term ReliabilityCarefully selected active materials are used for the active material as well as for the electrolyte. These materials are sealed by Murata's innovative technology to minimize battery self-discharge. The annual self-discharge rate at room temperature and normal humidity is less than 1% of the nominal capacity. UL Approved PartsMurata's Coin Manganese Dioxide Lithium Batteries are approved by UL. (UL1642 File No. MH12566) RoHS  Directive / European DirectivesThis product does not contain Mercury(Hg), Cadmium(Cd), nor Lead(Pb), and conforms to EC regulation values. (Directive 2006/66/EC, 2013/56/EU)Battery pack are excluded from RoHS directive (DIRECTIVE 2011/65/EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 8 June 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment).CR2450 ParameterManufacturer:Murata ElectronicsSeries:-Part Status:ActiveBattery Chemistry:Lithium Manganese DioxideBattery Cell Size:Coin 24．5mmVoltage - Rated:3VCapacity:500mAhSize / Dimension:0．96" Dia x 0．20" H (24．5mm x 5．0mm)Termination Style:Requires HolderDischarge Rate:3mAShipping Info:Due to restrictions only ground shipment is allowed．Shelf Life:-Shelf Life Start:-Storage/Refrigeration Temperature:50°F ~ 77°F (10°C ~ 25°C)Base Part Number:CRCR2450 vs CR2032CR2032CR2450 is often compared to the very popular 3.0 volt CR2032 lithium battery. The output voltages of these batteries are the same for the same chemical types. However, due to the larger volume of CR2450, it has a larger capacity-600-620 mAh (CR2450) vs 210-230 mAh (CR2032). This, almost 3x larger capacity, is the reason why CR2450 is the preferred choice for some 'high' drain devices and not for CR2032 batteries. Note: some of the devices designed for CR2450 have a special battery holder that allows the user to power both CR2450 and CR2032, which is great for getting proper batteries, but with almost 3x smaller capacity,  one can expect to replace CR2032 batteries some 3x more often than CR2450 batteries. For short, if possible, go for CR2450 batteries, you won’t regret it.CR2450 ApplicationAutomotive・Smart Key/Keyless entry・Door sill stripIoT・Tracking devices・Sensors・SecurityMedical・ThermometersOthers・Home electrical appliances/Multi- functional printer・Electronic price tags, POS systemsCR2450 PopularityCR2450 PackageCR2450 ManufacturerMurata is a global leader in the design, manufacture and supply of advanced electronic materials, leading edge electronic components, and multi-functional, high-density modules. Murata innovations can be found in a wide range of applications from mobile phones to home appliances, and automotive applications to energy management systems and healthcare devices.Component DatasheetCR2450 DatasheetFAQIs CR2032 same as CR2450?The CR2450 battery relies on the same storage technology as the CR2032 type. Therefore the energy density is the same, but the CR2450 cell provides more capacity due to its larger size. The capacity also varies depending on the manufacturer and lies around 620 mAh.What battery can replace CR2450?CR2032, CR2430, Energizer 317, Energizer 357/303, Energizer 364/363...How long does a CR2450 battery last?10 years. The lithium coin CR2450 batteries still have 90% of their original capacity after 10 years. The reason for this is that they are chemically very stable, thanks to the combination of lithium and manganese dioxide.Is there a difference between CR2450 and CR2450N?There is a difference between a 2450N and a 2450. ... There is a difference between the CR2450N and the CR2450 so make sure you get the one that will fit your device. The Terrova remote needs the one with the N on it. The remote only needs one battery so I bought an extra one for a spare.How do you test a CR2450 battery? 

TL084 is a high-speed operational amplifier integrated circuit consisting of a high voltage JFET and bipolar transistor. An interesting project, using TL084 to build a 100w+100w stereo amplifier with step by step explanation, thumps up.CatalogTL084 DescriptionTL084 PinoutTL084 FeaturesTL084 EquivalentTL084 ParameterTL084 vs TL074Where to use TL084 op ampHow to use TL084 op ampTL084 ApplicationTL084 PackageComponent DatasheetTL084 DescriptionTL084 is a high-speed operational amplifier integrated circuit that is made up of a high voltage JFET and a bipolar transistor. It features low input bias currents, trimmed input offset voltage, and high slew rates.  It is also pin-compatible with the LM741 IC and is used in electronics and computers, among other things. Furthermore, its operation range is compatible with both common-mode and differential voltage range applications. When using TL084, ensure that the unused op-amp in this Quad package is terminated. Because if they are not terminated, they may develop some stay capacitance, which can cause noise and thus affect the overall performance of this device. Furthermore, unused op-amps consume more power, lowering device efficiency.TL084 PinoutTL084 Op AmpTL084 Pinout Pin NumberDetails1  output pin of 1st OP-AMP2  inverting input voltage to 1st OP-AMP3  non-inverting input voltage to 1st OP-AMP4 (Vcc+) connect the positive supply voltage5  non-inverting input voltage to 2nd OP-AMP6 an inverting input voltage to 2nd OP-AMP7  output of 2nd OP-AMP8  output of 3rd OP-AMP9  an inverting input voltage to 3rd OP-AMP10 non-inverting input voltage to 3rd OP-AMP11 (Vcc-)connecting negative supply voltage12  non-inverting input voltage to 4th OP-AMP13  an inverting input voltage to 4th OP-AMP14 output of 4th OP-AMPTL084 FeaturesWide common-mode Rejection ratio of 70dB to 86dB and wide voltage supply rangeA low input bias currentless Power RequirementInternal frequency compensationSupply current is 1.4mA which is very lowLow offset currentNo requirement of a latchHigh input impedance JFET input stageshort-circuit protection for outputa large gain bandwidth of 3MHzhigh input impedanceSlew rate is high typically 16 V/µsOperating temperature range is from –55 °C to +125 °CTL084 EquivalentTL074, LF353N, TL072TL084 ParameterManufacturer:Texas InstrumentsProduct Category:Operational Amplifiers - Op AmpsRoHS:DetailsSeries:TL084Amplifier Type:General Purpose AmplifierOperating Supply Current:1.4 mAMinimum Operating Temperature:- 40 CMaximum Operating Temperature:+ 125 CMounting Style:SMD/SMTPackage / Case:PDIP-14Packaging:TubeHeight:4.57 mmLength:19.3 mmWidth:6.35 mmBrand:Texas InstrumentsOperating Supply Voltage:7 V to 36 V, +/- 3.5 V to +/- 18 VProduct Type:Op Amps - Operational AmplifiersFactory Pack Quantity:25Subcategory:Amplifier ICsNumber of Channels:4 ChannelGBP - Gain Bandwidth Product:3 MHzCMRR - Common Mode Rejection Ratio:70 dB to 86 dBIb - Input Bias Current:200 pAVos - Input Offset Voltage:6 mVProduct:Operational AmplifiersSupply Type:Single, DualDual Supply Voltage:+/- 5 V, +/- 9 V, +/- 12 V, +/- 15 VMaximum Dual Supply Voltage:+/- 18 VMinimum Dual Supply Voltage:+/- 3.5 VUnit Weight:0.032734 ozSR - Slew Rate:13 V/usShutdown:No Shutdownen - Input Voltage Noise Density:18 nV/sqrt HzVcm - Common Mode Voltage:Negative Rail + 4 V to Positive Rail - 4 VSupply Voltage - Max:36 VSupply Voltage - Min:7 VVoltage Gain dB:106.02 dBTechnology:BiFETIn - Input Noise Current Density:0.01 pA/sqrt HzInput Type:Rail-to-RailTL084 vs TL074TL084TL074 The Op-Amp is very similar to TL074 but has high noise immunity and better offset characteristics. The '74 has lower noise figure, so is better for AC signals. The '84 has lower offset, so is better for DC signals. The TL084 has better DC performance (low offset) and the TL074 has better noise/distortion performance. You can use TL074s on the audio paths, TL084s on the control paths.Where to use TL084 op ampThe TL084 is suitable for all applications that require a high slew rate, low input bias current and offset voltage, and a wide bandwidth.  It is used in voltage followers, ac to dc conversions, sample and hold circuits, and high-speed integrators because it is an op-amp IC. It is used to carry out mathematical calculations. The TL084 Op-Amp is distinguished by the incorporation of high-voltage JFET and bipolar transistors, which allows the transistor to have a very high input impedance and a low bias current. This Op-Amp also has low noise and harmonic distortion, making it an excellent choice for audio pre-amplifiers. So, if you're looking for an Op-Amp IC with a Quad package that's JFET driven, this IC might be a good fit.How to use TL084 op ampThe TL084 Op amp is very similar to the LM324 Op-Amp in that they both contain four Op-Amps and have the same pinouts.  The TL084 is not intended for common 5V operation because it requires a minimum of 7V to operate. So, unlike the LM324 or other op-amps, if you use the Op-Amp in single supply mode, make sure you provide at least 7V for the Op-Amp to function normally. If you are interested in learning about a few basic application circuits of this IC, you can read about how LM324 is used because both ICs share the same applications.TL084 ApplicationSample and Hold AmplifiersIt is used in active Filters for amplifying the output signalComparators, Multivibrators, Peak Detectors, square wave oscillators, and function generators also use this IC for designing their internal circuits.It can be used to perform all Standard Operational Amplifier Applications as it is pin to pin compatible with the LM741 IC design.Operational amplifiers are used in Notch filters for removing a single frequency or a small band of frequencies. Therefore, this IC can also be used for performing this function.TL084 PackageComponent DatasheetTL084 Op Amp Datasheet