BC546 Transistor CDIL NPN Transistor 546 BC546

Product Overview

The BC546 is a highly popular, general-purpose NPN bipolar junction transistor (BJT) housed in a compact TO-92 package. It is widely used for low-power signal amplification and high-speed switching applications. Due to its high voltage rating compared to the common BC547, it is often favored in circuits that require a slightly higher breakdown voltage. It is a staple component in audio pre-amplifiers, signal processing, and as a logic-level switch for microcontrollers.

Core Specifications

• Manufacturer: CDIL (Continental Device India Limited)

• Package Type: TO-92 (Through-Hole)

• Component Type: NPN Silicon Transistor

• Collector-Emitter Voltage ($V_{CEO}$): 65V

• Collector-Base Voltage ($V_{CBO}$): 80V

• Emitter-Base Voltage ($V_{EBO}$): 6V

• Continuous Collector Current ($I_C$): 100mA

• Power Dissipation ($P_{tot}$): 500mW (at $T_A = 25^\circ C$)

• DC Current Gain ($h_{FE}$): 110 to 800 (Classified by selection: A, B, C)

• Transition Frequency ($f_T$): 150 MHz (Minimum)

• Marking Code: BC546

• Part Number: BC546