AQY221N3VY

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 (0.175", 4.45mm)
Supplier Device Package:	4-SSOP

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AQY221N3VY Application Field and Working Principle: Solid State Relays Solid state relays (SSRs) are electrically operated switches that are used to control other electrical devices. The AQY221N3VY is one of the most popular models of SSRs, and is widely used in industrial, commercial, and residential applications.The AQY221N3VY is a single-pole single-throw (SPST) SSR with a current capacity of 1A. This model is typically used to control low-voltage switching of loads such as motors, fans, solenoids, and other equipment. It is designed to switch off and on quickly and provide high accuracy and repeatability.The working principle of the AQY221N3VY is based on the use of a switching element which is a semiconductor device. This type of device is known as an optically coupled isolator in which a light emitting diode (LED) and phototransistor are used in conjunction to control current flow. When a small current is sent through the LED, it emits light and this light is received by the phototransistor. The phototransistor then sends a signal to the electrical device it is connected to, which causes it to turn on or off.The AQY221N3VY is designed to be a reliable and cost-effective solution for switching small currents. It has a fast switching time of 0.4ms and a low starting current of less than 0.1mA. It can also handle loads up to 500Vac at 1A and has a minimum operating temperature of -30°C.The AQY221N3VY is one of the most popular solid state relays available on the market due to its versatility, reliability, accuracy, and cost effectiveness. It is used in a variety of applications ranging from automotive and industrial applications to consumer electronics. It can be used in industrial applications such as motor control, solenoid valves, fan control, and light dimming. In consumer applications, it is used for energy-saving lighting control, thermostats, and fan speed control.In conclusion, the AQY221N3VY is one of the most widely-used and reliable solid state relays available on the market. It is a single-pole single-throw (SPST) SSR with a current capacity of 1A and features a fast switching time of 0.4ms, a low-starting current of less than 0.1mA, and a minimum operating temperature of -30°C. This type of SSR is used in a variety of industrial, commercial, and residential applications in order to control other electrical devices with high accuracy and repeatability.

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