SR202AM01 Relays

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Signal relays are one of the most important components in electronic circuits. They are used to control and actuate various kinds of electrical circuits, allowing certain electronic signals to pass through or switching it off whenever needed. The SR202AM01 signal relay is one such relay, which provides a number of important functionalities up to two amps. This article will discuss the application field and working principle of the SR202AM01 signal relay.

Application Field of SR202AM01 Signal Relay

The SR202AM01 is a 2A signal relay with a wide range of applications. Its main application fields include Telecommunications, Power Distribution, Computer/Peripheral Control, HVAC and so on. It is useful in situations where frequent switching operations need to be done including the switching of any kind of low power AC or DC voltage and the similar switching application in a small and compact mechanical device.

The SR202AM01 is a low profile relay which is ideal for applications which require reduced board space. It has a high contact capacity of up to 2A and a high switching capacity of up to 40 W. This combination of features makes it ideal for applications involving the switching of different kinds of motor driven equipment, including electric fans, pumps, and small air conditioners.

In addition, the SR202AM01 is suitable for reducing the risk of short circuits by controlling the high temperatures of the circuit board, as it can withstand temperatures up to 120°C. It is also suitable for applications involving the switching of microprocessor based control systems like that in microwave ovens.

Working Principle of SR202AM01 Signal Relay

The working principle of the SR202AM01 is based on the principle of electromagnetic induction. When an electrical signal is applied to the relay coil, an electromagnet is produced which activates the mechanical switch. This mechanical switch is connected to the external circuitry via a set of contacts. When the relay is switched on, the contacts are closed and an electrical current flows between the external circuit and the relay coil which activates the electromagnet.

The electromagnet then attracts a pair of armatures, opening the contact points and closing others. This process is aided by the presence of an internal breaker which ensures that the contact points are positively opened and closed. This process of opening and closing of the contact points is done very quickly, allowing the relay to handle switching operations even when the input signal is constantly being changed.

The SR202AM01 is also protected against accidental short circuit, as it possesses a ‘resettable feature’, which allows a modest amount of current to safely pass through the contacts without causing any damage to the relay. This feature is particularly important in applications involving power distribution control, as it helps ensure that the relay is not damaged during operation.

Conclusion

The SR202AM01 signal relay is a versatile 2A signal relay with a number of important applications. It is ideal for applications involving the switching of low power AC or DC voltage, the switching of motor driven equipment, and the control of microprocessor based control systems. Its working principle is based on the principle of electromagnetic induction, where an electromagnet is produced when an electrical current is applied. The relay is also protected against accidental short circuit, due to its ‘resettable feature.’

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