2N3702

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The 2N3702 is a single junction transistor made from silicon materials that are NPN- based. Its application field and working principle is quite simple and well-understood.

The 2N3702 is most commonly used as a switch or amplifier in various electrical and electronic devices. Its most common usage is in oscillators, radio receivers and amplifiers, switching circuits, and voltage regulation circuits.

2N3702 transistors have an amplitude gain value of 10 to 20 when they are used in linear amplifiers, and they have a power gain of 40 to 60 when used in small-signal amplifiers.

2N3702 transistors typically require about 10mA of collector current for stability in linear operation, and a max reverse-bias collector-base voltage of 6 volts. 2N3702 transistors can handle a maximum collector current of 500mA and a maximum collector-emitter voltage of 25V.

The working principle of the 2N3702 is simple: it uses the base of the transistor to establish current across the collector and emitter. When the base current increases, the collector current also increases, allowing the transistor to act as an amplifier.

The 2N3702 uses a collector-base junction breakdown between 5 and 6 volts. The device has an internal base-emitter resistor, which is essential in the operation of the transistor as a switch. With the base voltage near the breakdown voltage, the transistor current is minimized while still allowing some current to flow in the collector-emitter connection. When the base voltage is reduced to below the breakdown voltage, the transistor is cut off, so no current can flow in the collector-emitter connection. This is the working principle of the 2N3702 used as a switch.

The 2N3702 transistor has a wide range of applications in various industries from automotive to medical. The 2N3702 is commonly used in voltage regulation circuits and amplifiers for radio receivers and oscillators, switching circuits for power supplies, air conditioning controllers, and telephone systems.

In conclusion, the 2N3702 is a single junction transistor made from silicon materials that are NPN- based. It has a wide range of applications and its working principle is simple and well-understood. It is mostly used as a switch or amplifier in various electrical and electronic devices, with a max reverse-bias collector-base voltage of 6 volts and a collector current of 500mA.

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