CD4850E2U

Solid State Relays

A solid-state relay (SSR) contains switching elements like transistors, triacs, or thyristors, which can be used to switch different types of loads. Compared to traditional electromechanical relays, solid-state relays have much faster switching, require less power, are smaller in size, and have longer lifetimes. These characteristics make them an ideal choice for a variety of applications. CD4850E2U is an example of a solid-state relay.

CD4850E2U application field

The CD4850E2U is an AC/DC output module with a maximum load capacity of 24A at AC 250V or DC 30V. It is suitable for a variety of home or industrial control applications such as thermostats, heaters, fans, pumps, valves, lights, and more.

The working principle of CD4850E2U

The CD4850E2U is a single-phase solid-state relay that contains a thyristor-based switching element. This relay has an input voltage of 12~24V DC and an output voltage of AC 250V or DC 30V. The input voltage is used to trigger the thyristor, which in turn switches the load circuit and passes the input DC voltage to the output AC/DC voltage. The CD4850E2U can be used with single-phase or three-phase AC loads.

The relay is designed with a zero-crossing circuit, which means that the load will be switched on or off at the zero point of the AC waveform. This ensures that there is no inrush current when the relay is switched on or off, which helps to prevent overloading or damaging the circuit and load. The relay also has an RC filter, which reduces noise interference.

The CD4850E2U can be used as a stand-alone device or integrated into a larger system. The relay is designed to work with a wide range of microcontrollers, such as PIC, 8051, and ARM, making it a versatile and reliable solution for switch applications.

Conclusion

The CD4850E2U is an AC/DC output module with a maximum load capacity of 24A at AC 250V or DC 30V. It can be used with single-phase or three-phase AC loads, and it has a zero-crossing circuit to reduce noise interference. It is suitable for a variety of home or industrial control applications such as thermostats, heaters, fans, pumps, valves, lights, and more.