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Name: 2SA1943-O(Q)
Brand: Toshiba Semiconductor and Storage
SKU: 2SA1943-O(Q)
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Toshiba Semiconductor and Storage 2SA1943-O(Q)

Part No.:: 2SA1943-O(Q)

Manufacturer:: Toshiba Semiconductor and Storage

Package:: TO-3PL

Datasheet:: 2SA1943-O(Q).pdf

Description:: TRANS PNP 230V 15A TO3P

In Stock:: 2534

Quantity:: Add To Cart

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2SA1943-O(Q) Typical application Circuitry

The 2SA1943-O(Q) is a pivotal element in the realm of audio amplification, belonging to the high-power PNP transistor category. This device is specifically engineered to provide robust performance in applications requiring high voltage and current handling capabilities, such as professional audio systems, high-fidelity amplifiers, and power regulation modules. The suffix "-O(Q)" designates a particular classification within its series, emphasizing its quality, reliability, and performance specifications tailored for demanding operational environments. This transistor is revered for its substantial contribution to achieving crisp, powerful audio output, ensuring minimal distortion across a wide range of frequencies.

1. Series Insight: The 2SA1943-O(Q) is part of a distinguished series recognized for its exceptional power handling and efficiency in converting input signals into amplified outputs without significant loss of fidelity. Its design focuses on delivering high-current output capability, making it an ideal choice for high-performance audio applications.

2. Pin Configuration and Connection Strategy:

- Collector (C): This terminal is the main current carrier of the transistor, typically connected to the power supply's positive end, either directly or through an intermediary component like a load resistor or an output transformer in audio applications. This setup is crucial for facilitating the high-power output characteristic of the 2SA1943-O(Q).

- Base (B): Serving as the control gate for the transistor, the Base terminal receives the input signal. In an amplifier circuit, this signal is applied through a network of resistors or a direct coupling from the preceding stage. The precise configuration of these elements is essential for defining the operational mode of the transistor, influencing its amplification properties and overall performance.

- Emitter (E): The Emitter is connected to the ground or the negative side of the power supply, acting as the reference point for the input signal and completing the circuit for current flow. It often includes a resistor in series, which aids in stabilizing the operation by providing feedback in the form of voltage drop, useful in setting the biasing conditions.

3. Integration into Amplifier Circuits: The 2SA1943-O(Q)'s role in an amplifier circuit is to enhance the power of the input signal, allowing for a larger current flow through the load, such as a loudspeaker. Achieving this requires a complementary configuration, often with an NPN transistor like the 2SC5200-O(Q), to form a push-pull amplifier stage. This setup improves efficiency by allowing both halves of the signal waveform to be amplified more effectively, reducing distortion and increasing output power.

4. Thermal Management and Reliability: Due to the high power levels processed by the 2SA1943-O(Q), efficient heat dissipation is paramount. Implementing a heat sink is a standard practice to maintain the transistor within safe operating temperatures, ensuring long-term reliability and performance consistency.

5. Optimizing Performance with Complementary Pairing: The synergy between the 2SA1943-O(Q) and its NPN counterparts is foundational in crafting amplifier designs that excel in dynamic range, efficiency, and sound quality. This complementary approach allows designers to exploit the full potential of each transistor, optimizing the circuit for superior audio reproduction.

6. Ensuring Signal Integrity: Maintaining the integrity of the signal through the 2SA1943-O(Q) involves careful layout planning, including minimizing the length of connections, employing proper grounding techniques, and using bypass capacitors to filter out noise from the power supply. These practices are instrumental in preserving the quality of the amplified signal, ensuring that the audio output remains free from unwanted distortion or interference.

In essence, the 2SA1943-O(Q) embodies a key component in the design of advanced audio amplification systems, its implementation a testament to the pursuit of audio excellence. Through judicious selection and application, including detailed attention to pin connections, thermal management, and complementary pairing, this transistor can significantly enhance the power and fidelity of audio outputs, making it a cornerstone in high-quality audio system design.

2SA1943-O(Q) information

2SA1943-O(Q) Specifications

Packaging:
Tube
Series:
-
ProductStatus:
Active
TransistorType:
PNP
Current-Collector(Ic)(Max):
15 A
Voltage-CollectorEmitterBreakdown(Max):
230 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:
150°C (TJ)
MountingType:
Through Hole

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6. What is the process for return or replacement of 2SA1943-O(Q)?

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(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 2SA1943-O(Q).

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

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