2N1795

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Thyristors are a family of devices that act as switches and can be triggered with a current, voltage or temperature. The thyristor family includes triacs and silicon-controlled rectifiers (SCRs). The 2N1795 SCR is a unidirectional, three-pin device that is mainly used for pulse control in high-efficiency systems, like in motor controls.

2N1795 Application Field and Working Principle

The 2N1795 is a four-layer, three-terminal, unidirectional SCR which can be used in many applications. It is mainly used for pulse control in motor control, lighting, welding and other high-efficiency systems. It is an ideal choice for applications where fast commutations, high power handling and positive temperature coefficient are required.

The 2N1795 has a guaranteed holding current of 200mA and a peak repetitive off-state voltage of 800V. It also has a on-state trigger current (ITR) of 10mA and an on-state voltage drop (VTM) of 1V. It is also very efficient, with a reverse leakage current (IR) of less than 1uA.

The primary function of the 2N1795 SCR is to control the current in a high-efficiency system. It consists of four layers, which are the Anode (A), Gate (G), Cathode (C), and Substrate (S). When current flows between the anode and cathode (A-C), at a certain voltage or current, the device can be triggered, also known as “turn on”. Once the device is triggered, or turned on, the current will continue to flow between the anode and cathode until either the voltage is removed or the current is reduced to below the holding current. When the current falls below the holding current, the device will return to its “off state”, or untriggered state. The 2N1795 can also be triggered by pulses at its gate.

The 2N1795 can also be used to improve the noise immunity of high-speed logic circuits. The SCR has a low trigger current and requires no additional external components to turn it on, allowing it to be used as a low-cost noise suppression element. This can be very useful in applications that use high-speed digital logic signals, like in communications devices.

In summary, the 2N1795 is a unidirectional, three-terminal SCR device that is mainly used for pulse control applications in high-efficiency systems. It has a guaranteed holding current of 200mA and a peak repetitive off-state voltage of 800V. It can also be used as a low-cost noise suppression element for high-speed logic circuits. The 2N1795 offers a high efficiency and is an ideal choice for applications where fast commutations, high power handling and positive temperature coefficient are required.

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