BC546 Transistor pinout

BC546 transistor

The BC546 transistor is a commonly used NPN bipolar junction transistor. It is used in electronics circuits for switching and amplification. Almost transistor and 546 bc transistor consist of three terminals: collector (C), base (B), and emitter (E). A small current or voltages  are applied to the base terminal of transistor flows a huge current from emitter to collector terminal. The BC546 is known for its general-purpose NPN transistor comes in package to-92. It is used for low-power and low-frequency applications.

BC546 transistor

There are four versions of BC546 transistor: BC546BC546ABC546B, and BC546C. The difference among these four versions is their DC current gain value. Current gain value of 546 is from 110 to 800, BC546A is from 110 to 220, BC546B is from 200 to 450, and BC546C is from 420 to 800.

BC546 Transistor Pinout

BC546 is NPN transistor the pin configuration of 546 is given below in the table. If you want to see pins diagram in the above diagram pinout diagram is given.

Pin Number Pin Name Description
1 Collector Current flows in transistors through collector, normally connected to load
2 Base Base of all transistors is used to Controls the biasing of transistor
3 Emitter Emitter is used to Drains out current, normally connected to ground

BC546 Transistor Specifications

The technical features or specifications of transistor 546BC are given below.

  • Package Type: TO-92
  • Transistor Type: NPN
  • Collector-Base Voltage (V_CB): 80V
  • Collector-Emitter Voltage (V_CE): 65V
  • Emitter-Base Voltage (V_BE): 6V
  • Collector Current (I_C): 100mA
  • Power Dissipation (P_D): 500mW
  • DC Current Gain (h_FE): Typically around 200 to 450
  • Transition Frequency (f_T): Typically not specified or very low
  • Operating Temperature Range: -55°C -150°C

BC546 transistor Equivalents

  • BC547: The BC547 an alternate of transistor to the 546 with almost similar specification.
  • BC548: BC548 is also equivalent of this transistor little high voltages features.
  • BC549: BC549 has also similar features of 546.
  • BC337: The BC337 is another NPN transistor available in a TO-92 package and is often used as a substitute for the 546.
  • 2N2222: The 2N2222 is an NPN transistor can be used as an alternate of 546 transistor.
  • c945 and c828 transistors also can be used as an alternate of transistor 546 NPN

Please must check the pin configurations of transistors if you want to use as an alternate of bc546. Pinout configuration may differ of any equivalent of 546 transistor.

BC546 PNP Complementary

BC556 PNP and BC557 PNP are good complement of this transistor.

Applications of transistor

Here is a list of common uses for the BC546 transistor:

  • Amplification
  • Switching
  • Oscillators
  • Signal Modulation
  • Signal Shaping
  • Signal Mixing
  • Signal Detection
  • Buffering
  • Voltage Regulation
  • Audio Applications
  • DIY Electronics

Datasheet of bc546 PDF

Transistor bc546 datasheet:

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