2SD1047 NPN Transistor Datasheet & Pinout

Introduction

The 2SD1047 is a powerful silicon NPN transistor widely used in high-power amplification and switching applications. This transistor is recognized for its excellent electrical specifications, which include a high collector-emitter voltage (VCEO) of 140V and a generous collector current (IC) rating of 12A. This robust design allows it to handle significant power loads, making it a reliable component in demanding electronic circuits. The transistor is housed in a durable TO-3P package, which is designed for efficient heat dissipation to ensure stable operation even under high power conditions.

A primary application for the 2SD1047 is in audio amplification. It is frequently used in the output stage of high-fidelity audio power amplifiers, where its ability to manage high current and power helps deliver a clean and strong audio signal. It is often paired with its complementary PNP transistor, the 2SB817, in a push-pull configuration to efficiently amplify both halves of the audio waveform. This configuration is a staple in professional and DIY audio projects. The transistor’s high DC current gain (hFE), with a maximum value of 200, allows for precise control of the output with a relatively small input signal.

2SD1047 NPN Transistor

Beyond audio, the 2SD1047 is also a versatile power switch. Its ability to handle a high collector current of 12A makes it ideal for use in various switching applications, including DC-DC converters, switching regulators, and as a motor driver. The transistor’s high transition frequency (fT) of 15MHz enables it to perform effectively in high-speed switching circuits. Its combination of high voltage, high current, and good thermal performance solidifies its reputation as a dependable choice for power electronics.

2SD1047 Pinout

2SD1047 NPN Transistor Pinout & Datasheet — 2SD1047 NPN Transistor Pinout

2SD1047 NPN Transistor Key Features

The 2SD1047 is a powerful silicon NPN power transistor primarily used in high-power amplification and switching applications. It is often paired with its complementary PNP transistor, the 2SB817.

Key Features

High Current Capability: The transistor can handle a continuous collector current (IC) of 12A, making it suitable for driving significant loads.
High Power Dissipation: It has a high power dissipation (PC) of 100W, allowing it to manage and dissipate substantial heat.
High Voltage Rating: It features a high collector-emitter voltage (VCEO) of 140V, making it suitable for use in high-voltage circuits.
High DC Current Gain (hFE): The transistor provides a good current gain, with a maximum value of 200, which allows a small base current to control a much larger collector current.
Fast Switching Speed: With a transition frequency (fT) of 15MHz, it is suitable for high-speed switching applications.
Robust Package: It is available in the TO-3P package, which is designed for through-hole mounting and efficient heat sinking.
High breakdown voltage (VCEO) = 140 V
Typical ft = 20 MHz
Package Type: TO-3P
Transistor Type: NPN

2SD1047 Transistor Specifications/Characteristics

Characterstics	Rating (Max)
Max Collector Current(IC):	12A
Max Collector-Emitter Voltage (VCE):	140V
Max Collector-Base Voltage (VCB):	200V
Max Emitter-Base Voltage (VEBO):	6V
Max Collector Dissipation (Pc):	100 Watt
Minimum & Maximum DC Current Gain (hFE):	60 To 200
Max Storage & Operating temperature:	-65 to +150 Centigrade

2SD1047 Specifications Table

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Key Applications of 2SD1047 NPN Transistor

Motor Driver Applications
High power audio amplifier
Power Supply Circuits
Inverter circuits
Drive load of up to 12A

PNP Complimentary Transistor

PNP Complementary transistor of 2SD1047 is 2SB817

Equivalent Transistors of 2SD1047

2SC5948, 2SC4059, 2SC5358, 2SC5200, 2SC3907, 2SC6011, 2SD1717

Datasheet of 2SD1047 NPN Transistor

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