SSR-40DA Datasheet PDF – 40A, DC to AC Solid State Relay

This is one of the SSD (Solid State Relay)  types.

Part Number: SSR-40DA

Function  : DC to AC Solid State Relay

Package: Module type



SSR-40DA Image


The SSR-40DA is 40A, DC to AC Solid State Relay.

A relay is an electrically operated switch that opens or closes a circuit by activating an electromagnet to actuate the switch. It allows a low-power electrical signal, such as from a microcontroller or sensor, to control a much larger current or voltage, such as required to drive a motor or light bulb.

This allows a small electronic device to control a much larger one, or to isolate the low-power circuit from the high-power one. Relays are used in a wide range of applications, including automotive systems, HVAC systems, and computer power supplies, among other



SSR-40DA Datasheet


1. High Reliability by S.M.T & TGC. ( Surface Mounting Technology )

2. High Isolation over than 50mOhm / 500 VDC

3. High Dielectric over than 2.5KV

4. Low Enable Current less than 7.5mA / 12VDC CMOS IC or TTL Compatible.

5. Low EMI / EFI & Surge by Zero Cross Trigger Method.

6. High Surge Current Duration Over 10 Times of Rated Current / One Cycle

7. High Surge Voltage Duratin By Snubber Circuit

Diagram :

SSR-40DA Diagram
Other data sheets are available within the file: SSR-25DA, SSR-25DA-H, SSR-40DA-H, SSR-P03DA

SSR-40DA Datasheet PDF


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