2SC2922 NPN Transistor Datasheet Pinout

Introduction

The 2SC2922 is a high-power NPN bipolar junction transistor (BJT) designed for use in demanding electronic circuits, particularly in audio amplification applications. It is a workhorse component in professional and consumer audio equipment due to its ability to handle significant power and current. Commonly found in a large MT-200 package, it is built to be mounted on a heatsink, which is essential for managing the high thermal output associated with its operation.

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With a high collector current of 17A and a impressive collector power dissipation of 200 watts, the 2SC2922 is a perfect choice for the output stage of high-fidelity audio amplifiers. It can drive large speaker loads with power and clarity, ensuring a clean and undistorted sound. The transistor also features high voltage ratings, with both collector-emitter and collector-base voltages of 180V, making it suitable for high-voltage power amplifier designs.

2SC2922 NPN Transistor

The 2SC2922 is often used as a complementary pair with the 2SA1216 PNP transistor. This pairing is fundamental to the design of Class B push-pull amplifiers, a highly efficient and linear configuration. In this setup, the 2SC2922 handles the positive half of the audio waveform, while the 2SA1216 handles the negative half. This collaboration results in powerful and accurate signal amplification, solidifying the 2SC2922’s status as a key component in power electronics and high-performance audio systems.

2SC2922 Pinout

2SC2922 Transistor Key Features

The 2SC2922 is a high-power NPN bipolar junction transistor (BJT) designed for use in demanding applications, particularly in audio amplification. Its robust electrical characteristics and high power handling capability make it a popular choice for high-fidelity audio systems.

• NPN Polarity: As an NPN transistor, the 2SC2922 operates by allowing a large current to flow from the collector to the emitter when a small positive voltage is applied to its base. This is the standard configuration for amplification and switching.
• High Power Handling: The transistor can dissipate up to 200W of power, which is a key feature for high-power audio amplifiers where significant heat is generated. This ensures stable performance and prevents thermal damage.
• High Current Capacity: With a maximum continuous collector current of 17A, the 2SC2922 can drive high-power loads, such as large speakers, motors, and relays. This makes it a workhorse in both audio and power control circuits.
• High Voltage Ratings: It features a high collector-emitter voltage (VCE​) of 180V and a collector-base voltage (VCB​) of 180V. These high ratings make it suitable for use in high-voltage audio and power supply applications.
• High DC Current Gain (hFE​): The transistor has a DC current gain ranging from 30 to 180. This high gain allows for effective signal amplification, ensuring a powerful and clean output from a smaller input signal.
• Complementary Pair: The 2SC2922 is the complementary partner to the PNP transistor 2SA1216. This pairing is fundamental to the design of high-fidelity Class B push-pull audio amplifiers, where the two transistors work together to amplify both the positive and negative halves of a signal waveform.
• Package: It is typically available in a large MT-200 package, which is designed to be mounted on a heatsink for effective heat dissipation.

2SC2922 Transistor Specifications/Characteristics

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Key Applications of 2SC2922 NPN Transistor

The 2SC2922 is a high-power NPN transistor primarily designed for audio and power amplification. Its robust characteristics allow it to be used in demanding applications that require high current and power handling. It’s often paired with its complementary PNP transistor, the 2SA1216, in high-fidelity audio systems.

• Audio Power Amplifiers: The 2SC2922 is a core component in the output stage of high-power audio amplifiers. Its ability to handle up to 17A of collector current and 200W of collector dissipation makes it suitable for driving large speakers and producing high-quality sound. It is a workhorse in both professional and consumer audio equipment.
• Audio Frequency (AF) Amplifier: Beyond power amplifiers, it is used in high-fidelity audio driver and output stages, where its linear amplification characteristics ensure accurate sound reproduction.
• High-Current Switching: The 2SC2922 can function as a powerful switch to control high-current loads. Its 17A current capacity allows it to drive components like motors, powerful relays, and solenoids in industrial and electronic control systems.
• Voltage Regulators: Due to its high power dissipation, the 2SC2922 can be used as a pass transistor in high-current linear voltage regulators, where it can dissipate a significant amount of power while maintaining a stable output voltage.
• DC to DC Converters: The transistor can be used in the switching stages of DC to DC converters, where its high current rating and medium switching frequency (50 MHz) enable efficient power conversion.

PNP Complimentary Transistor

PNP Complementary of 2SC2922 Transistor is 2SA1216.

Equivalent Transistors of 2SC2922

The 2SC2922 transistor can be replaced by the following transistors:

• 2SC3264
• 2SC3436

Datasheet of 2SC2922 NPN Transistor

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