AQY272

AQY272 solid state relays shipped by E-Switch are suitable for commercial and industrial applications. It has the features of small size, high reliability, fast response, direct mounting, zero voltage switching, wide operating temperature range and short circuit protection. The AQY272 can be used to control AC loads, such as heaters, motors, lamps and transformers. It can also be used in various circuits. In addition, it can drive LED lighting.

The AQY272 is a three-terminal, zero-voltage load switching device made of a light emitting diode (LED) and an insulated gate field effect transistor (IGFET), with the control input connected to the gate terminal. The function of LED is to indicate the operating status of the load, which can be used for visual inspection. The IGFET operates as a switch and can control the electrical connection between the load and the power source.

The relay uses the standard four-pin terminal blocks, which consist of LED terminals (COM and +V), control terminals (IN and G) and load terminals (L1 and L2). The COM and +V terminals are responsible for providing power to the LED. The IN and G terminals are used to control the output of the relay. When a current is passed through the IN and G terminals, the IGFET will be switched on and the load will be connected to the power source.

In order to drive the AQY272, a current source is needed. This source must be able to provide a continuous current between 50 and 500mA, depending on the load type. Furthermore, the pulse width and square-wave frequency of the current must be between 20 and 100 microseconds and 50 and 3000 Hertz, respectively.

The operating temperature range of the AQY272 is -20 to 80°C. The allowable voltage range for the load is up to 110V AC and the maximum current is limited to 5A. The dielectric strength between the control terminals and the load terminals is 500V. In addition, it has an excellent protection against short-circuit, overload and overvoltage.

In conclusion, the AQY272 solid state relay provides a simple solution for controlling AC loads with its small size, high reliability and wide operating temperature range. It is perfect for a variety of commercial and industrial applications.