STMicroelectronics BF421-AP

Brief Description: The BF421-AP is a PNP bipolar junction transistor (BJT) from STMicroelectronics, designed for general-purpose applications. It features a high current rating, high gain bandwidth product, and a low saturation voltage.

Features:

• High current rating: 500mA
• High gain bandwidth product: 60MHz
• Low saturation voltage: 600mV
• High collector-emitter breakdown voltage: 300V
• High collector-base breakdown voltage: 300V
• High power dissipation: 830mW
• Lead-free and RoHS3 compliant
• Operating temperature: 150°C TJ
• Mounting type: Through-hole
• Package: TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)

Application Grade: The BF421-AP is suitable for general-purpose applications, including audio amplifiers, power supplies, and motor control circuits.

Applications:

• Audio amplifiers
• Power supplies
• Motor control circuits
• General-purpose switching and amplification applications

Key Information:

• Collector-base voltage (VCBO): 300V
• Collector-emitter breakdown voltage: 300V
• Collector-emitter voltage (VCEO): 600mV
• Current rating: -500mA
• DC current gain (hFE) (min): 50 @ 25mA, 20V
• Frequency: 60MHz
• Gain bandwidth product: 60MHz
• Max breakdown voltage: 40V
• Max collector current: 500mA
• Max power dissipation: 830mW
• Operating temperature: 150°C TJ
• Package: TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
• Pin count: 3
• Transistor type: PNP