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2SA1943

Name: 2SA1943
Rating: 4.7 (12 reviews)

TRANS PNP 230V 17A TO-3PL

Производитель
Мфр. Часть #2SA1943
Пакет
Лист данных 2SA1943 DataSheet
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Спецификации

Part Status	Active
Transistor Type	PNP
Current - Collector (Ic) (Max)	17 A
Voltage - Collector Emitter Breakdown (Max)	230 V
Vce Saturation (Max) @ Ib, Ic	500mV @ 400mA, 4A
Current - Collector Cutoff (Max)	500µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce	70 @ 5A, 4V
Power - Max	180 W
Frequency - Transition	28MHz
Operating Temperature	150°C (TJ)
Mounting Type	Through Hole
Package / Case	TO-3P-3, SC-65-3
Supplier Device Package	TO-3PL

Обзор

Description

The 2SA1943 is a high-power NPN transistor commonly used in audio amplification and power applications. It is part of the 2SA series and is known for its ability to handle high voltages and currents, making it suitable for use in push-pull amplifier configurations.
Key characteristics include a maximum collector-emitter voltage (Vce) of around 120V, a maximum collector current (Ic) of 15A, and a power dissipation capability of about 150W. The transistor features a high gain (hFE) ranging from 50 to 200, which contributes to its efficiency in amplifying signals.
The 2SA1943 is often paired with the complementary PNP transistor 2SC5200, forming a robust output stage in audio power amplifiers. Its robust performance, thermal stability, and reliability make it a popular choice among audio and electronics enthusiasts for both DIY projects and commercial applications. Proper heat sinking is essential to prevent overheating during operation.

Features

The 2SA1943 is a high-power NPN transistor widely used in audio amplification and other high-current applications. Key features include:
1. High Voltage Rating: Collector-emitter voltage (Vce) up to 120V, allowing it to handle significant voltage levels.
2. High Current Capability: Continuous collector current (Ic) rating of up to 15A, suitable for driving heavy loads.
3. Power Dissipation: Maximum power dissipation of around 150W, which helps in managing heat in high-performance applications.
4. High Gain: Current gain (hFE) ranging from 30 to 100, providing efficient amplification.
5. Package Type: Typically available in TO-3 or TO-220 packages, facilitating easy heatsinking and mounting.
6. Applications: Commonly used in audio output stages, power amplifiers, and linear power supplies.
These characteristics make the 2SA1943 a popular choice for both hobbyists and professionals in the field of electronics.

Package

The 2SA1943 is typically packaged in a TO-220, a metal can package designed for power transistors. This package type provides good thermal performance and allows for effective heat dissipation.

Pinout

The 2SA1943 is a high-power NPN transistor commonly used in audio amplifier applications. It has a total of three pins. The pin configuration is as follows:
1. Emitter (E) - This is the terminal through which the current exits the transistor.
2. Base (B) - This terminal controls the transistor's operation and is used to input the signal that modulates the current flowing from the collector to the emitter.
3. Collector (C) - This is the terminal through which the current enters the transistor.
The 2SA1943 is known for its high voltage and high current capabilities, making it suitable for driving loads in power amplifier circuits. It can handle up to 15A of continuous collector current and has a maximum collector-emitter voltage of 230V.

Manufacturer

The 2SA1943 is a power transistor manufactured by various semiconductor companies, with one of the most notable manufacturers being Toshiba. Toshiba Corporation is a multinational conglomerate based in Japan, primarily involved in electronics and electrical equipment. Founded in 1875, Toshiba operates in multiple sectors, including information technology, infrastructure, and consumer electronics. The company is known for its innovation in semiconductor technology, producing a range of products, including transistors, integrated circuits, and memory devices. Toshiba plays a significant role in the global electronics market, with a focus on quality and performance in its components.

Application

The 2SA1943 is a high-power NPN transistor commonly used in audio amplification, power amplifiers, and output stages of audio devices. It is suitable for use in linear applications, such as high-fidelity amplifiers and drivers for loudspeakers. Additionally, it can be found in switch-mode power supplies and other high-current applications due to its robust performance characteristics and high voltage ratings.

Equivalent

The 2SA1943 is a commonly used NPN transistor, often found in audio amplifier applications. Equivalent products include 2N5551, MPSU06, and 2N3055, though specifications may vary. For power amplifier applications, consider complementary pairs like 2SC5200 or 2N3773 along with the 2SA1943. Always check datasheets for exact specifications and compatibility.

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