CD4850E1VR

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:	15 ~ 32VDC
Voltage - Load:	48V ~ 660V
Load Current:	50A
Termination Style:	Screw Terminal
Package / Case:	Hockey Puck
Supplier Device Package:	--

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction to Solid State Relays

Solid state relays (SSRs) are common electrical power control components that are used in many industries as a completely electronic alternative to traditional electromechanical relays. Relying on solid state electronics, SSRs are capable of providing fast switching between on and off states, precise control of power, and a low level of electromagnetic interference. An SSR is typically composed of four main sections: a LED or light source, detector, solid state switch, and driver device. When the input voltage is applied to the SSR, the light source within the device stimulates the detector to turn on the solid state switch and forward the output signal to the driver device. Most SSRs use the same working principle, providing precise control over the output signal. This principle is based on a semiconductor photovoltaic cell, which is used to convert the input signal into a voltage level suitable for the output. When the input signal is applied to the photovoltaic cell, it causes a light source within the SSR to emit light. The emitted light is then detected by a light-sensitive diode, which in turn triggers the solid state switch (usually an MOSFET). Once the input signal information is transferred to the MOSFET switch, the output signal can be determined by the polarity of the input signal (the MOSFET will close or open, representing a high and low output).

CD4850E1VR Application Field and Working Principle

The CD4850E1VR is a 8 A/20 to 800 VAC single-phase solid state relay from Coto Technology. This SSR has a built-in zero-crossing detector, making the CD4850E1VR suitable for use in a range of AC power control applications, from motor speed control to light dimming. The CD4850E1VR’s built-in zero-crossing detector allows it to accurately detect the current crossing point of a zero or near-zero voltage. When the input voltage is applied to the CD4850E1VR, it detects the zero crossing point, then forms a closed-loop control system with the input signal to accurately maintain the output signal. The CD4850E1VR utilizes a secondary insulation system with an internal oxide protective layer to ensure protection against electric shocks, short circuits, overheating, and other damage. This SSR also features a highly efficient heatsink with a built-in fan for optimal cooling. The CD4850E1VR is made up of four main components—a zero-crossing detector, a thyristor switch, a MOSFET, and an output device—which are responsible for providing precise control of the output signal. When the input voltage is applied to the CD4850E1VR, the zero-crossing detector detects the current crossing point and forwards it to the thyristor switch. The thyristor switch then turns on or off the MOSFET accordingly depending on the input signal polarity. Finally, the output device is triggered to transfer the output signal of the MOSFET to the desired load. In conclusion, the CD4850E1VR is an important component in AC power control applications, thanks to its efficient heatsink with built-in fan, its protective oxide layer, and its precise control of the output signal.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description