2SA1216 PNP Transistor Datasheet Pinout

Introduction

The 2SA1216 is a high-power PNP bipolar junction transistor (BJT) that is highly regarded in the electronics industry for its robust performance in high-fidelity audio amplification. It is designed to handle significant power and current, making it an essential component for the output stage of high-end audio amplifiers and other demanding power electronics. Typically packaged in a large MT-200 case, the transistor is engineered for efficient heat dissipation, allowing it to operate reliably under heavy load conditions.

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With a high collector current of -17A and a impressive collector power dissipation of 200 watts, the 2SA1216 is well-suited for driving large speakers and other high-current loads. Its high voltage ratings, including a collector-emitter voltage of -180V, provide the durability required for high-voltage audio and power supply designs. These features, combined with its linear gain, ensure a clean and powerful output signal with minimal distortion.

2SA1216 PNP Transistor

The 2SA1216 is most famously used as the complementary partner to the NPN transistor 2SC2922. This pairing is foundational to the design of highly efficient and linear Class B push-pull amplifiers. In this configuration, the 2SA1216 is responsible for amplifying the negative half of the audio waveform, while the 2SC2922 handles the positive half. This collaboration results in powerful and accurate signal reproduction, solidifying the 2SA1216’s status as a key component in power electronics and high-performance audio systems.

2SA1216 Pinout

2SA1216 Transistor Key Features

The 2SA1216 is a high-power PNP bipolar junction transistor (BJT) designed for use in demanding applications, particularly in audio amplification. It is the complementary partner to the NPN transistor 2SC2922.

PNP Polarity: As a PNP transistor, the 2SA1216 requires a small negative voltage at its base to allow current to flow from the emitter to the collector. This makes it ideal for complementary amplifier designs.
High Power Dissipation: It can dissipate up to 200W of power, a critical feature for high-power audio amplifiers where significant heat is generated during operation. This ensures stable performance and prevents thermal damage.
High Current Capacity: With a maximum continuous collector current of -17A, the 2SA1216 can drive high-power loads, such as large speakers, motors, and relays, making it a workhorse in both audio and power control circuits.
High Voltage Ratings: The transistor has 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 power applications.
High DC Current Gain (hFE): The transistor’s DC current gain ranges from 30 to 180, enabling it to amplify small input signals and drive larger currents effectively.
Complementary Pair: The 2SA1216 is designed to be the complementary partner to the NPN transistor 2SC2922. This pairing is fundamental for building high-fidelity Class B push-pull amplifiers, where the two transistors work together to amplify both the positive and negative halves of an audio waveform.
Package: The 2SA1216 is typically available in a large MT-200 package, which is specifically designed for mounting on a heatsink to ensure efficient heat dissipation.

2SA1216 Transistor Specifications/Characteristics

Characterstics	Rating (Max)
Collector-Emitter Voltage	-180 V
Collector-Base Voltage	-180 V
Emitter-Base Voltage	-5 V
Collector Current	-17 A
Collector Dissipation	200 W
DC Current Gain (hfe)	30 to 180
Transition Frequency	40 MHz
Operating and Storage Junction Temperature	-55 to +150 °C
Package	MT-200
Type	PNP

2SA1216 Specifications Table

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Key Applications of 2SA1216 PNP Transistor

The 2SA1216 is a high-power PNP transistor specifically designed for demanding audio and power amplification applications. Its robust characteristics, including high current and voltage ratings, make it a cornerstone component in professional audio equipment.

Audio Power Amplifiers: The 2SA1216 is a fundamental component in the output stage of high-power audio amplifiers. It is commonly used in a complementary pair with the 2SC2922 NPN transistor to form a Class B push-pull amplifier. This configuration efficiently drives large speakers, producing high-quality sound with minimal distortion.
Audio Frequency (AF) Amplifiers: Beyond high-power applications, the 2SA1216 is also utilized in the driver and output stages of high-fidelity audio systems. Its linear gain and fast response are crucial for accurately reproducing audio signals.
High-Current Switching: With a maximum continuous collector current of -17A, the 2SA1216 can function as a high-power electronic switch. It is capable of controlling heavy loads, such as motors, powerful relays, and solenoids, in industrial and electronic control systems.
Voltage Regulators: Due to its high power dissipation of 200W, the 2SA1216 is used in high-current linear voltage regulators. It acts as a pass transistor to dissipate excess power and maintain a stable output voltage for sensitive circuitry.
DC to DC Converters: The transistor can be used in the switching stages of DC-DC converters, where its high current capacity and medium switching frequency (40 MHz) allow for efficient power conversion.

NPN Complimentary Transistor

PNP Complementary of 2SA1216 Transistor is 2SC2922.

Equivalent Transistors of 2SA1216

The 2SA1216 is a high-power PNP transistor commonly used in audio amplifiers and other high-current applications. When looking for equivalent transistors, it’s essential to match key specifications to ensure proper circuit function. These specs include voltage, current, power dissipation, and frequency.

The following transistors are often considered equivalent to or suitable as substitutes for the 2SA1216. However, it’s always recommended to check the specific datasheet for each component to confirm compatibility with your circuit design.

MJL21193: A very common, high-power PNP transistor that can serve as a suitable replacement. It is part of a complementary pair with the MJL21194 NPN transistor.
2SA1494: Another PNP transistor that is often considered a replacement, although its specifications may differ slightly, such as a lower transition frequency. It’s important to check if the circuit relies on that specific frequency.
2SA1215: A similar PNP transistor, although it has a lower voltage and power rating, so it is not a direct substitute for high-power applications.

Datasheet of 2SA1216 Transistor

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