Omron G9KJ-1A DC12 High-Power PCB Relay 12 VDC 25 A 1 Form A

High-current switching on a PCB often forces designers to choose between compact size and reliable performance. The Omron G9KJ-1A DC12 high-power PCB relay solves that conflict by handling up to 25 A in a single-pole normally-open configuration, with a 12 VDC coil that fits standard through-hole layouts.

Who is it for

Engineers and technicians who need a robust, board-mounted relay for power control in industrial equipment, HVAC systems, appliances, or automation panels. It suits applications where space is limited but the load is not.

Main features

• Rated switching current: 25 A
• Contact configuration: 1 Form A (SPST-NO)
• Coil voltage: 12 VDC
• Max switching voltage: 250 VAC / 30 VDC
• Contact material: AgSnO2 (Silver Tin Oxide)
• Coil resistance: 100 Ω at 23 °C
• Coil power consumption: 1.44 W
• Dielectric strength coil-to-contact: 4,000 VAC for 1 min
• Insulation resistance: 100 MΩ min. at 500 VDC
• Operating temperature range: -40 to +85 °C
• Mechanical life: 10,000,000 operations min.
• Electrical life: 100,000 operations min. at rated load
• Mounting type: PCB through-hole
• Terminal type: PCB pins, 4 pins
• Approvals: UL, CSA, VDE
• Operate time: 15 ms max.
• Release time: 10 ms max.

Specifications

• Series: G9KJ
• Relay type: High-Power PCB Relay
• Contact configuration: 1 Form A (SPST-NO)
• Coil voltage: 12 VDC
• Rated switching current: 25 A
• Max switching voltage: 250 VAC / 30 VDC
• Contact material: AgSnO2
• Coil resistance: 100 Ω
• Coil power consumption: 1.44 W
• Dielectric strength: 4,000 VAC
• Insulation resistance: 100 MΩ min.
• Operating temperature: -40 to +85 °C
• Mechanical life: 10,000,000 operations
• Electrical life: 100,000 operations
• Mounting: PCB through-hole
• Terminals: PCB pins, 4 pins
• Approvals: UL, CSA, VDE
• Operate time: 15 ms max.
• Release time: 10 ms max.

Tips

Ensure the PCB traces can carry the full load current and provide adequate clearance for the 250 VAC rating. The AgSnO2 contacts resist welding and arc erosion, making this relay suitable for frequent switching of resistive or slightly inductive loads.