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ON Semiconductor 2SA1943OTU

Part No.:: 2SA1943OTU

Manufacturer:: ON Semiconductor

Package:: TO-264-3, TO-264AA

Datasheet:: 2SA1943OTU.pdf

Description:: TRANS PNP 250V 17A TO264-3

In Stock:: 2866

Quantity:: Add To Cart

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2SA1943OTU Specifications

Packaging:
Tube
Series:
-
ProductStatus:
Active
TransistorType:
PNP
Current-Collector(Ic)(Max):
17 A
Voltage-CollectorEmitterBreakdown(Max):
250 V
VceSaturation(Max)@IbIc:
3V @ 800mA, 8A
Current-CollectorCutoff(Max):
5µA (ICBO)
DCCurrentGain(hFE)(Min)@IcVce:
80 @ 1A, 5V
Power-Max:
150 W
Frequency-Transition:
30MHz
OperatingTemperature:
-50°C ~ 150°C (TJ)
MountingType:
Through Hole

2SA1943OTU this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including 2SA1943OTU price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for 2SA1943OTU to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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2SA1943OTU information

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2SA1943OTU Typical application Circuitry

The 2SA1943OTU is a high-power PNP bipolar junction transistor (BJT), primarily utilized in the domain of audio amplification circuits due to its exceptional power handling and amplification characteristics. It is a critical component in the construction of high-end audio amplifiers, offering a blend of high voltage capacity, significant current handling, and efficiency. The "OTU" suffix in its name indicates its package type, which is optimized for thermal dissipation and reliability in rigorous operational conditions. This transistor is widely acclaimed for its role in delivering clean, powerful audio output in stereo amplifiers, home theater systems, and professional sound equipment.

1. Series Background: The 2SA1943OTU is part of a transistor series that is extensively employed in audio power amplification roles. Its design is geared towards handling high voltages and currents while maintaining low distortion levels, making it an indispensable component in the design of high-fidelity audio amplification systems.

2. Circuit Integration and Pin Configuration: Featuring a three-pin configuration, the 2SA1943OTU includes the Collector (C), Base (B), and Emitter (E) terminals. In an amplifier circuit, the Collector is typically connected to the power supply's positive side through a load (like a speaker), the Emitter is linked to the common or ground circuit, and the Base receives the input signal that modulates the transistor's conductivity to produce amplified output.

3. Pin-Specific Circuit Connections:

- Collector (C): Directly connected to the load (speaker), it handles the high current amplified output. It's also where the positive power supply is connected, often through an inductor or a resistor to manage the current flow.

- Base (B): This terminal receives the input audio signal through a biasing network. The biasing components (resistors and sometimes capacitors) are crucial for setting the transistor's operating point for optimal amplification without distortion.

- Emitter (E): It is connected to the circuit's ground or the negative side of the power supply. The Emitter often includes a small resistor in series to aid in stabilizing the biasing and controlling the transistor's gain.

4. Thermal Management Considerations: Given the 2SA1943OTU's high-power capabilities, ensuring efficient thermal management is vital. This is often achieved by mounting the transistor on a heat sink to dissipate the heat generated during operation, thereby preventing overheating and ensuring consistent performance.

5. Complementary Configuration for Enhanced Audio Performance: For optimal audio performance, the 2SA1943OTU is frequently paired with a complementary NPN transistor, such as the 2SC5200OTU. This pairing forms a push-pull amplifier configuration, greatly improving the system's efficiency, linearity, and power output, which are essential for high-quality audio reproduction.

6. Ensuring Signal and Power Integrity: To achieve the best performance from a circuit incorporating the 2SA1943OTU, careful attention must be paid to the layout and component selection. This includes using appropriate bypass capacitors at the power supply lines to minimize noise and interference, ensuring short and direct signal paths to reduce signal degradation, and selecting suitable biasing resistors to maintain the transistor within its optimal operating range.

In summary, the 2SA1943OTU stands out as a pivotal element in the design of high-performance audio amplification systems, revered for its ability to deliver high power with minimal distortion. Its integration into a circuit demands meticulous attention to detail in terms of pin connections, thermal management, and complementary pairing with an NPN transistor to exploit its full potential. Through careful design and implementation, the 2SA1943OTU can significantly elevate the quality and power of audio systems, embodying a benchmark in audio amplifier design.

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6. What is the process for return or replacement of 2SA1943OTU?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the 2SA1943OTU we delivered, we will accept the replacement or return of the 2SA1943OTU only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of 2SA1943OTU.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations