FANHAR Power Relay W20-1AST-DC12V 20A 4 Pin
The FANHAR Power Relay W20-1AST-DC12V 20A 4 Pin is a highly reliable, robust electromagnetic switching component specifically engineered for demanding control and automation applications. Built with a durable plastic-sealed construction, this relay provides superior protection against environmental contaminants such as dust, moisture, and flux residues during the soldering process. It features a precise 12VDC coil and a single Form A (Normally Open) contact arrangement, making it an optimal choice for precise circuit isolation and reliable load switching in compact electronic assemblies.
Features:
- Ultra-robust miniature design measuring 30.4×15.9×25.1mm for secure PCB mounting.
- Plastic-sealed construction provides superior protection against dust and environmental contaminants.
- Single Form A (SPST-NO) contact arrangement with high-quality AgSnO2 contact material.
- Rated switching capacity of 20A at 250VAC, with a maximum switching current of 32A.
- 12VDC coil voltage with a nominal power consumption of 900mW for efficient operation.
- Fast operate time of ≤20ms and release time of ≤10ms for responsive control applications.
Specifications:
|
Parameter
|
Value
|
|---|---|
|
Model Number
|
W20-1AST-DC12V
|
|
Brand
|
FANHAR
|
|
Contact Arrangement
|
1 Form A (SPST-NO)
|
|
Contact Material
|
AgSnO2
|
|
Rated Load
|
20A/250VAC
|
|
Max Switching Voltage
|
277VAC/30VDC
|
|
Max Switching Current
|
32A
|
|
Coil Voltage
|
12VDC
|
|
Coil Resistance
|
160Ω
|
|
Operate Voltage
|
≤9.00VDC
|
|
Release Voltage
|
≥0.60VDC
|
|
Nominal Power
|
900mW
|
|
Operate Time
|
≤20ms
|
|
Release Time
|
≤10ms
|
|
Insulation Resistance
|
1000MΩ
|
|
Dielectric Strength
|
4500VAC
|
|
Ambient Temperature
|
-40°C~85°C
|
|
Dimensions
|
30.4×15.9×25.1mm
|
|
Construction
|
Plastic-Sealed
|
|
Termination
|
PCB
|

Applications:
- Household appliances including washing machines, refrigerators, and air conditioners.
- Industrial control panels and programmable logic controller output stages.
- Lighting control systems and high-power LED driver switching circuits.
- Automotive auxiliary systems and battery management switching.
- Security systems and access control hardware requiring high-current isolation.
- Smart home automation systems and IoT control modules.
Package Include:
1x FANHAR Power Relay W20-1AST-DC12V 20A 4 Pin
W20 Datasheet









