YL303H Relay – PCB 5 Pin, Form A ( PDF Datasheet, Pinout )

Part Number: YL303H

Function: PCB Relay, Form A Type

Size : 19.2×15.5×15.5 mm

Manufacturer: YLE


1 page
YL303H image


The YL303H is PCB 5 Pin Type, PCB 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


3 page


1. 10A switching capability

2. Small footprint

3. Sealed type available

4. Class B/F available

5. Conform to RoHS,ELV directive


1. Dielectric Strength Between Open Contacts : 750VAC(50/60Hz for one minute)

2. Between Contacts and coil : 1500VAC(50/60Hz for one minute)

3. Weight : Approx 10g

YL303H Datasheet PDF