AQW225NS

Series:	PhotoMOS™ AQW
Packaging:	Tube
Part Status:	Obsolete
Mounting Type:	Surface Mount
Circuit:	SPST-NO (1 Form A) x 2
Output Type:	AC, DC (RF)
Voltage - Input:	1.14VDC
Voltage - Load:	0V ~ 80V
Load Current:	100mA
On-State Resistance (Max):	10 Ohms
Termination Style:	Gull Wing
Package / Case:	8-SMD (0.300", 7.62mm)
Supplier Device Package:	8-SOP

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Introduction to Solid State Relays

Solid state relays (SSRs) are electronic switching devices that use semiconductors instead of electromechanical relays to control an electric load. SSRs rely on electrical signals to control a high-powered electrical circuit, and they provide a variety of advantages over traditional electromechanical relays, such as low power consumption, no sparks, and no operating noise. They are typically much more efficient than their electromechanical counterparts, require less maintenance, and last longer.

AQW225NS Solid State Relay

The AQW225NS is a leading-edge solid state relay designed to manage a variety of industrial applications. This particular SSR features a 25A load current rating, a maximum input voltage of 240VAC, and is capable of switching loads of up to 1200W at a maximum switching frequency of 50/60Hz. It\'s available in four different variants, including single-phase, three-phase, single-phase with fuse, and three-phase with fuse.The AQW225NS is a compact controller with a space-saving design that is ideal for tight spaces. The relay is designed to help simplify wiring, reduce EMI emissions, and reduce system costs by eliminating the need for an additional contactor or EMI filter.

Application Field and Working Principle

The AQW225NS solid state relay is suitable for all kinds of industrial automation control systems, such as lighting, air compressors, pumps, HVAC, solenoids, conveying systems, and more. It is suitable for applications where low-power input signals control high-power output loads, such as controlling the temperature of a boiler in an industrial plant.The AQW225NS has a zero-crossing operation, in which the current reaches the load at the same instant it crosses the zero-voltage mark. This maximizes the reliability and efficiency of the device. The current is controlled by a TRIAC, which is essentially two back-to-back SCRs (silicon-controlled rectifier), allowing the current to be turned on and off in both directions, resulting in a more efficient switching process than a standard relay.The AQW225NS also has a built-in thermal protection system that prevents it from overheating. The relay is UL CE certified and has a temperature range of -25 to +75 degrees Celsius.

Conclusion

The AQW225NS is a reliable and efficient solid state relay that provides a variety of advantages over traditional electromechanical relays. Its compact design and built-in thermal protection system makes it an ideal choice for a wide variety of industrial applications. It is suitable for controlling high-power output loads with low-power input signals, making it a versatile and valuable addition to any industrial automation system.

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