2N690

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Thyristors - SCRs belong to a family of semiconductor devices known as four layer diodes. They are used in various power control applications and are designed to switch power on a varying current or voltage. The 2N690 SCR is a commonly used device in this category of power control semiconductors. It is used in the control of high-voltage, large-current industrial applications such as motor control, manufacturing process and general electrical applications. This article will discuss the 2N690 application field and working principle.

The 2N690 is a three pin device and is typically used in SCR-controlled and other circuits where a load is electrically controlled through a feedback loop. The SCR controls the switch that is the basis of the feedback loop. This can be achieved through either a current or voltage feedback loop. The operating voltage for the 2N690 is 1000V and has a maximum current rating of 30A. The SCR has an operating temperature range of -20°C to +120°C, a storage temperature range of -55°C to +125°C and an on/off switching time of 50ms maximum.

In terms of application field, the 2N690 is used in many different power control applications such as motor control, manufacturing process, surge suppression, gate and arc welding, battery charging and automation. It can be used in a variety of circuits such as Alternating Current (AC) and Direct Current (DC) applications, metering, inrush protection, motor control and resistance welding. This device is also very effective at reducing voltage transients or surges that can occur in an electrical circuit.

The working principle of the 2N690 is based on its gate-controlled characteristics. The gate is the control electrode of the SCR, and is connected to the external circuit. When a positive voltage is applied to the gate relative to the cathode, the SCR turns on and the device acts as a closed switch. This switches in the load current for a predetermined amount of time before the device turns off again. This is the basis for the application field that the 2N690 is used in, as it can be used to control the switch on/off processes in power systems.

In conclusion, the 2N690 is a three-pin device used in many industrial applications for power control. It is designed primarily for AC/DC applications, motor control, surge suppression and inrush protection applications. It has a voltage rating of 1000V and a current rating of 30A, and an on/off switching time of 50ms maximum. The working principle of the 2N690 is based on its gate-controlled characteristics, whereby a positive voltage is applied to the gate relative to the cathode, the SCR then turns on and acts as a closed switch.

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