BC547 Transistor NPN 50V 100mA 625mW TO-92

BC547 Transistor NPN 50V 100mA 625mW is a NPN transistor (BJT) designed for low current, low voltage, and medium power applications. It is commonly used in switching and amplification circuits and is housed in a TO-92 package. Due to its low cost and wide availability, it’s ideal for hobby electronics, education, and prototyping.

Key Features:

• General Purpose NPN Transistor: Suitable for switching and small signal amplification.
• Low Collector Current: Can handle up to 100mA continuous collector current.
• Low Voltage Operation: Operates efficiently up to 50V collector-emitter voltage.
• Compact TO-92 Package: Easy to mount in breadboards and PCBs.
• Cost-Effective: Ideal for mass use in educational and DIY projects.

Technical Specifications:

• Transistor Type: NPN
• Collector-Emitter Voltage (V_CEO): 50V
• Collector-Base Voltage (V_CBO): 60V
• Emitter-Base Voltage (V_EBO): 6V
• Collector Current (I_C): 100mA (max)
• Total Power Dissipation (P_tot): 625mW
• DC Current Gain (h_FE): 110 to 800
• Transition Frequency (f_T): 150MHz (typical)
• Package Type: TO-92

Mechanical Specifications:

• Package: TO-92 plastic case
• Pin Configuration: Pin 1 (Collector), Pin 2 (Base), Pin 3 (Emitter)
• Lead Pitch: 2.54mm standard spacing
• Dimensions: Approx. 4.5mm × 4.5mm × 5mm (excluding leads)

Mounting Options:

• Through-Hole Mounting: Compatible with breadboards and PCB insertion.
• Socket Installation: Can be used with TO-92 sockets for easy replacement.

Schematic Diagram, Connection, Wiring and Pinout:

• Pin 1: Collector
• Pin 2: Base
• Pin 3: Emitter
• Connection: Base is the control pin, collector connects to load, emitter to ground or negative rail.

Datasheet and Documentation:

• Download BC547 Datasheet (PDF)

Applications:

• Switching Circuits: Used to switch LED