BC846B,235
General-purpose NPN bipolar transistors in compact SOT23 packages
Manufacturer： ['nexperia', 'nxp']
series introduction
# Introduction to the BC846B,235 Product Series
## 1. Overview
The BC846B,235 is a highly regarded product series within the realm of semiconductor components. Specifically, it belongs to the family of bipolar junction transistors (BJTs), which are fundamental building blocks in a wide range of electronic circuits. These transistors are designed to offer reliable performance, precise control, and efficient operation, making them suitable for numerous applications across different industries.
## 2. Technical Specifications
### Electrical Characteristics
- **Collector - Emitter Voltage (VCEO)**: The BC846B,235 typically has a specified collector - emitter voltage rating. This parameter indicates the maximum voltage that can be applied between the collector and the emitter terminals without causing damage to the transistor. For this series, it is designed to handle a relatively high VCEO, which allows it to be used in circuits with moderate to high - voltage requirements.
- **Collector Current (IC)**: It can handle a certain amount of collector current. The ability to manage a specific level of current is crucial as it determines the transistor's capacity to drive loads in a circuit. The BC846B,235 is engineered to support a sufficient collector current, enabling it to be used in applications where power delivery to components is necessary.
- **DC Current Gain (hFE)**: This is an important parameter that represents the ratio of the collector current to the base current. The BC846B,235 has a well - defined and relatively high DC current gain. A high hFE value means that a small base current can control a much larger collector current, which is useful for amplification purposes in audio and other signal - processing circuits.
### Physical Characteristics
- **Package Type**: The BC846B,235 is usually available in a small - sized surface - mount package. This type of package is ideal for modern printed circuit board (PCB) designs, as it allows for high - density component placement. The compact size also helps in reducing the overall footprint of the circuit, making it suitable for applications where space is limited, such as in portable electronic devices.
- **Temperature Range**: It is designed to operate within a specific temperature range. This ensures its reliability and performance under different environmental conditions. The transistor can function effectively in both normal ambient temperatures and in more extreme temperature settings, which is important for applications in industrial, automotive, and outdoor environments.
## 3. Applications
### Amplification Circuits
- **Audio Amplification**: Due to its high DC current gain, the BC846B,235 is well - suited for use in audio amplifier circuits. It can take a weak audio signal at the input and amplify it to a higher level, which can then be used to drive speakers or other audio output devices. The precise control of the amplification process provided by the transistor ensures that the audio signal is reproduced accurately without significant distortion.
- **RF Amplification**: In radio - frequency (RF) circuits, the BC846B,235 can be used to amplify RF signals. It can help in boosting the strength of weak RF signals received by an antenna, making them suitable for further processing in a radio receiver. The transistor's ability to operate at high frequencies and its stable performance characteristics make it a good choice for RF amplification applications.
### Switching Circuits
- **Logic Circuits**: In digital logic circuits, the BC846B,235 can be used as a switch. By applying a small control signal to the base terminal, the transistor can be turned on or off, allowing or blocking the flow of current through the collector - emitter path. This property is used in various digital circuits, such as in microcontroller - based systems, to control the operation of different components.
- **Power Switching**:
Images for reference
SOT-23-3
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