CD4825D1VR

Series:	Evolution Dual
Packaging:	Bulk
Part Status:	Active
Mounting Type:	Chassis Mount
Circuit:	SPST-NO (1 Form A) x 2
Output Type:	AC
Voltage - Input:	4 ~ 15VDC
Voltage - Load:	48V ~ 660V
Load Current:	25A
Termination Style:	Screw Terminal
Package / Case:	Hockey Puck
Supplier Device Package:	--

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Introduction

Solid State Relays (SSRs) are electrical switching devices that can be used to switch different appliances, instruments, and motors. CD4825D1VR is a type of SSR which was designed to meet the demand of high-frequency applications, high current switching, long life, and ultra-fast switching speeds. This paper will discuss the application fields and working principles of the CD4825D1VR SSR.

Application Fields

The CD4825D1VR has multiple applications such as switching equipment in industries such as automotive, home appliances, medical equipment, aerospace, defense, and railway. It is a reliable and robust SSR which is designed for high-temperature and long-life applications. It is especially suitable for harsh environments due to its advanced water-proof design. Furthermore, due to its ultra-fast switching speeds, the CD4825D1VR is suitable for high-speed switching applications.

Working Principle

The CD4825D1VR SSR is based on the thyristor principle of current and voltage control during switching. It has two separate parts, an input stage and an output stage. The input stage mainly consists of a trigger module and a light emitting diode (LED). The voltage and current from the LED flows to the thyristor and changes its orientation. This change in orientation then triggers the thyristor which causes current to flow to the output module. The output module consists of a thyristor and a relay coil which activate the load connected to the device. When the thyristor is activated, it will cause voltage to be applied to the relay coil which in turn activates the load that is connected to it. When the input current is removed, the thyristor stops activating and the relay deactivates the load.

Conclusion

In conclusion, the CD4825D1VR is a reliable and robust SSR which is suitable for applications such as automotive, home appliances, medical equipment, aerospace, defense, and railway. It has multiple features such as high current switching capacity, ultra fast switching speeds, and long-life design. Furthermore, it works on the thyristor principle of current and voltage control during switching.

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