2SD1861TV2

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2SD1861TV2 Application Field and Working Principle

2SD1861TV2 belongs to transistors—Bipolar (BJT)—Single. It functions as a Darlington transistor pair. As a Darlington transistor pair, it is mainly composed of two NPN transistors connected in series. This provides a current gain that is superior to that of a single transistor and has low saturation voltage.

Features

2SD1861TV2 has a wide range of uses, such as power supply circuits, high current amplifier circuits, audio input / output circuits, etc. The features of the 2SD1861TV2 are as follows:

• High Collector-Emitter Voltage (Vce): 150V
• High Collector Current (Ic): 10A
• High switching speed
• High frequency operation possible
• High current gain
• Suitable for switching circuits

Working Principle

As a Darlington transistor pair, the 2SD1861TV2 functions as two transistors connected in series. Both transistors have emitter to base junctions that are connected together, and both have the same base connection. Consequently, a single base current will drive both bases and switch them on together. The gain of this pair is the product of both the individual gains.

This device has a particularly low saturation voltage, so it can be used in applications that require large voltage drops, such as power supplies and high current amplifier circuits. The low saturation level also allows it to be used in higher frequency circuits since it has a faster switching speed. Additionally, its high current gain makes it particularly suitable for switching applications where large currents need to be switched quickly and with minimum height.

When compared to a single NPN transistor, the 2SD1861TV2 provides a higher current gain and a lower saturation voltage. This makes it ideal for applications requiring high current drive, high current amplification, and fast switching.

Conclusion

2SD1861TV2 is a high-performance Darlington transistor pair. It is composed of two NPN transistors and offers higher current gains, higher switching speed, and lower saturation voltage than a single NPN transistor. This makes it particularly suitable for power supply circuits, high current amplifier circuits, audio input / output circuits, and switching circuits that require large voltage drops and large current drive.

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