AQY221N3MY Relays

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 ~ 25V
Load Current:	150mA
On-State Resistance (Max):	7.5 Ohms
Termination Style:	SMD (SMT) Tab
Package / Case:	4-SMD (0.116", 2.95mm)
Supplier Device Package:	4-SON

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Solid State Relays

The AQY221N3MY is a type of solid state relay (SSR) used for controlling the flow of electricity between two contacts. It is typically used in industrial applications, such as motor control, switching high voltage loads, and other various applications. The AQY221N3MY is ideal for use in applications that require high current or voltage, or applications that require frequent switching.

Application Field

Solid state relays (SSRs) are primarily used in industrial applications to switch electrical loads or signals. They can be used in applications that require low voltage and high current, and are also frequently used in applications that require frequent switching. The AQY221N3MY is ideal for a wide range of industrial applications that require high current or voltage, including most motor control applications. It is also suitable for switching a variety of AC and DC signals.

Working Principle

The AQY221N3MY is an electrically controlled switch that uses a semiconductor device to switch power between two contacts. An input voltage is applied to the control input terminal and signals the relay to switch. When the input voltage is applied, a small current flows through the semiconductor device, causing it to turn on and allowing current to flow through the relay to the load.When the input voltage is removed, the semiconductor device turns off and interrupts the current flow, thereby switching off the load. The AQY221N3MY is designed so that it can safely switch AC or DC loads up to 80 amperes, and can handle voltages up to 690 volts AC or 1000 volts DC. The switching time of the AQY221N3MY is usually very fast, which makes it ideal for high speed switching applications.

Safety Features and Protection Ratings

The AQY221N3MY is equipped with several safety features to help protect against overcurrents and short circuits. It is rated for a maximum of 8 amperes of leakage current, which helps to protect against shocks and other potential hazards. The AQY221N3MY has built-in resistors to prevent over-voltage surges, and it also comes with a built-in thermal fuse that will open if the temperature of the relay exceeds a specified limit. The AQY221N3MY complies with UL508 and EN61131-2 standards, and is CE approved for industrial control applications. The AQY221N3MY is rated for IP20 protection against moisture and dust ingress, and the relay is also RoHS compliant.

Conclusion

The AQY221N3MY is a type of solid state relay (SSR) designed for use in industrial applications. It can handle up to 8 amperes of current, and can handle voltages up to 690V AC or 1000V DC. It is suitable for motor control applications, as well as for switching high voltage loads and AC or DC signals. The AQY221N3MY has several safety features, including a built-in thermal fuse, resistors to prevent overtemperature and overvoltage, and UL508 and EN61131-2 compliance. In addition, the AQY221N3MY has an IP20 protection rating and is RoHS compliant.

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