BC846B ON Semiconductor TRANS NPN 65V 0.1A SOT-23

The BC846B is an NPN Bipolar Junction Transistor (BJT) manufactured by ON Semiconductor. Here is an overview of the BC846B transistor:

BC846B Transistor Overview:

  • Manufacturer: ON Semiconductor
  • Part Number: BC846B
  • Transistor Type: NPN
  • Package: SOT-23 (Small Outline Transistor)
  • Voltage Rating: 65V
  • Current Rating: 0.1A (100mA)
  • DataSheet BC846B PDF

Key Features:

  • NPN Bipolar Transistor: NPN transistors are commonly used for amplification and switching applications.
  • Voltage Rating: Capable of withstanding up to 65V in the collector-emitter circuit.
  • Current Rating: Designed to handle up to 0.1A (100mA) of continuous collector current.
  • SOT-23 Package: SOT-23 is a small surface-mount transistor package with three terminals for easy mounting on PCBs.


The BC846B transistor finds applications in various electronic circuits, including:

  • Amplification: Used in small signal amplification stages in audio and RF circuits.
  • Switching: Employed as a switch in digital and analog circuits.
  • Signal Processing: Integral to signal conditioning circuits and sensor interfaces.
  • Voltage Regulation: Utilized in voltage regulator circuits for stabilization.
  • Oscillator Circuits: Plays a role in generating oscillations in electronic systems.

Working Principle:

  • In an NPN transistor like the BC846B, current flows from the collector to the emitter when a small current is applied to the base terminal.
  • By controlling the base current, the collector-emitter current can be amplified or switched on and off accurately.

Suggested Projects:

  • Low-Power Amplifiers: Building small signal amplifiers for audio applications.
  • Switching Circuits: Creating digital logic gates and circuits for control applications.
  • Waveform Generation: Designing oscillators for generating specific frequencies.
  • Voltage Regulation: Implementing voltage regulators for stable power supplies.
  • Sensor Interfaces: Connecting sensors to microcontrollers for data acquisition.


  • Refer to the datasheet provided by ON Semiconductor for detailed specifications, characteristic curves, and application notes specific to the BC846B transistor.
  • Understanding the transistor’s gain, maximum ratings, and operating characteristics is crucial for proper integration into circuit designs.

The BC846B NPN transistor from ON Semiconductor is a versatile component suited for amplification and switching tasks in a wide range of electronic circuits, thanks to its compact SOT-23 package and reliable performance characteristics.

Copyright © 2024 ZHONG HAI SHENG TECHNOLOGY LIMITED All Rights Reserved.

Заявление о конфиденциальности | Условия эксплуатации | Гарантия качества