AQW225N

Series:	PhotoMOS™ AQW
Packaging:	Tube
Part Status:	Obsolete
Mounting Type:	Through Hole
Circuit:	SPST-NO (1 Form A) x 2
Output Type:	AC, DC (RF)
Voltage - Input:	1.14VDC
Voltage - Load:	0V ~ 80V
Load Current:	120mA
On-State Resistance (Max):	10 Ohms
Termination Style:	PC Pin
Package / Case:	8-DIP (0.300", 7.62mm)
Supplier Device Package:	8-DIP

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Introduction to Solid State Relays: AQW225N

Solid state relays are an important element of electrical systems used for the control of electric power. They are often used to reduce load-side power consumption and reduce the amount of hazardous energy required to switch conventional relays. Solid state relays (SSR), like the AQW225N, provide an alternative for conventional mechanical relays, reducing maintenance costs over the life of the application. This device is also small in form factor and easy to install to various protective devices.

Description

The AQW225N is a compact and efficient solid state relay which is designed for high efficiency and low power consumption. It is a micro-sized relay with a built-in adjustment mechanism for easy operation. It has an array of features which make it ideal for a number of applications, including industrial, home, and automotive applications. Furthermore, it is completely self-contained and equipped with an overload/short-protection circuit.

Application fields

The AQW225N solid state relay can be used in a variety of applications, including motor control, industrial heating systems, household appliances, automotive systems, energy conversion systems, and many more. The output voltage range is 3-32 volts DC, and the input voltage range is 9-45 volts DC. It can be used to control an AC load of up to 250V, as well as DC loads of up to 40A. It is ideal for applications which require overcurrent protection, motor control, and the switching of high-power loads.

Working Principle

The AQW225N solid state relay uses a DC-to-AC converter circuitry to control the power load. It has an internal electronic switch (also known as a MOSFET) which obtains its control voltage from the power supply. The switch opens and closes depending on the input/output signals, thus switching the power load. The amount of current that the switch can handle depends on the current rating of the internal MOSFET. The AQW225N also features an overload/short-protection feature. This feature monitors the current and limits it to the safe values. If the current exceeds the safely limit, the internal circuitry will shut off the device and purge the load voltage and current. This feature prevents overloads which can damage the equipment or potentially cause fires.

Conclusion

The AQW225N solid state relay is an incredibly versatile and efficient device which can be used in a variety of applications. It features an internal overload/short-protection circuit which adds a level of safety to the application. With its small form factor and low power consumption, this device is ideal for powering applications such as motor control, industrial heating, household appliances, automotive systems, and energy conversion systems.

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