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2SA812-T1B-A

Name: 2SA812-T1B-A
Rating: 4.7 (12 reviews)

Bipolar Transistors - BJT

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概述

Description

The 2SA812-T1B-A is a type of bipolar junction transistor (BJT) designed for general-purpose amplification and switching applications. It is typically used in various electronic circuits, including audio amplifiers, signal processing, and power management systems.
Key specifications include a maximum collector current of around 1.5 A, a collector-emitter voltage rating of 30 V, and a DC current gain (hFE) that can range from 50 to 500, depending on the specific operating conditions. The transistor is housed in a TO-220 package, facilitating effective thermal management and easy integration into circuit designs.
Its NPN configuration allows for efficient signal amplification and control, making it suitable for both low-power and high-power applications. The 2SA812-T1B-A can operate within a wide temperature range, which enhances its versatility in various environments. Overall, it is a reliable component widely adopted in consumer electronics, industrial controls, and automotive applications.

Features

The 2SA812-T1B-A is a PNP bipolar junction transistor (BJT) designed for general-purpose amplification and switching applications. Key features include:
1. Voltage and Current Ratings: It has a maximum collector-emitter voltage (V_CE) of 30V, a maximum collector current (I_C) of 1A, and a maximum power dissipation of 500mW.
2. Gain: The transistor offers a high current gain (h_FE), typically ranging from 100 to 600, making it suitable for low power applications.
3. Frequency Response: It has a transition frequency (f_T) of approximately 150MHz, allowing for effective operation in high-frequency applications.
4. Package Type: It is available in a TO-92 package, which is suitable for through-hole mounting.
5. Temperature Range: The operating temperature range is typically from -55°C to 150°C, providing reliability in various environments.
This transistor is commonly used in audio amplification, signal processing, and other electronic circuits.

Package

The 2SA812-T1B-A is typically housed in a TO-220 package type. This package is designed for power transistors, providing efficient heat dissipation and easy mounting on heatsinks.

Pinout

The 2SA812-T1B-A is a general-purpose NPN transistor, primarily used for amplification and switching applications. It is part of the 2SA812 series and typically comes in a TO-220 package.
Pin Count and Functions:
- Pin Count: 3
- Pin Functions:
1. Collector (C) - This is the terminal through which the output current flows. It is used to collect carriers (electrons or holes) from the transistor.
2. Base (B) - This terminal is used to control the transistor's operation; applying a small current here allows a larger current to flow between the collector and emitter.
3. Emitter (E) - This is where the current exits the transistor after flowing through the collector.
The 2SA812-T1B-A is suitable for various applications, including audio amplifiers and other linear and switching circuits.

Manufacturer

The 2SA812-T1B-A is manufactured by ON Semiconductor. ON Semiconductor is a leading global supplier of semiconductor-based solutions, providing a wide range of products including analog, digital, and power management devices. The company serves various industries such as automotive, industrial, communications, computing, and consumer electronics, focusing on energy-efficient solutions and innovative technologies. Founded in 1999, ON Semiconductor has grown through a combination of organic growth and strategic acquisitions, positioning itself as a key player in the semiconductor market.

Application

The 2SA812-T1B-A is a general-purpose NPN transistor used in various applications, including audio amplifier circuits, signal switching, and low-frequency amplification. It is suitable for use in consumer electronics, power management, and sensor interfacing. Its capabilities make it ideal for low to medium power applications in both discrete and integrated circuits.

Equivalent

The 2SA812-T1B-A is a general-purpose PNP transistor. Equivalent products include the KSA812, MPSA12, and BC327. Ensure to check specifications like voltage, current ratings, and package type for compatibility in your application.