AQY221N5VY

Series:	PhotoMOS™ AQY
Packaging:	Tape & Reel (TR)
Part Status:	Active
Mounting Type:	Surface Mount
Circuit:	SPST-NO (1 Form A)
Output Type:	AC, DC (RF)
Voltage - Input:	1.14VDC
Voltage - Load:	0V ~ 20V
Load Current:	180mA
On-State Resistance (Max):	4.5 Ohms
Termination Style:	SMD (SMT) Tab
Package / Case:	4-SMD (0.175", 4.45mm)
Supplier Device Package:	4-SSOP

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Introduction to Solid State Relays

Solid-state-relays (SSRs) are electronic switches that have no moving parts and use no mechanical contacts to operate. They are capable of switching high-current AC and DC loads with low-power input signals. They can be used to control anything from simple fan motors to complex industrial automation systems. This makes them useful for a range of applications from home automation to factory automation.

AQY221N5VY Application Field and Working Principle

The AQY221N5VY is a solid state relay (SSR) that is designed for use in medium- and high-voltage applications as well as low-noise, low-emission applications. This SSR has a high dielectric strength rating which makes it suitable for use with a variety of AC and DC loads, including resistive and capacitive loads. The AQY221N5VY uses a zero voltage switching (ZVS) design which reduces power losses and eliminates arcing and has integrated over-voltage protection to prevent damage to the relay.The AQY221N5VY is designed to be used with an input signal from a PLC, or a signal from a timer or other control. The incoming signal is used to control a TRIAC (Thyristor), which is connected to the load. When the input signal is applied, the TRIAC turns on, which in turn turns on the load. The TRIAC can be turned off by disconnecting the power from the input signal, or by sending a reverse current through the TRIAC.The AQY221N5VY can also be used to control more complex loads that require multiple stages. This SSR is able to control each stage individually and can also be used to synchronize multiple stages via timing signals from the controlling PLC or other control system.

Conclusion

The AQY221N5VY solid state relay is a reliable and efficient device for controlling medium- and high-voltage AC and DC loads. It can handle resistive and capacitive loads and can control multiple stages in more complex applications. It has a high dielectric strength rating and integrated over-voltage protection to ensure that the relay is not damaged. The AQY221N5VY is a versatile device that can be used in a variety of applications from home automation to industrial automation.

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