A3M1ASQ12VDC2R

Relay Automotive Overview

The A3M1ASQ12VDC2R is a heavy-duty automotive relay from the CIT Relay and Switch A3M series, designed for high-current applications. It features an SPST-NO (Form A) contact arrangement with a rated switching capacity of up to 80A at 14VDC. The unit operates on a 12VDC coil voltage with a resistance of 80 Ohms and consumes 1.8W of power. Constructed with AgSnO2/In2O3 contact materials, it ensures low initial contact resistance below 30 milliohms. The relay supports chassis mounting via quick-connect terminals and is fully sealed for environmental protection.

Relay Automotive Feature Summary

• High current switching capability up to 80A for demanding automotive loads
• Fully sealed construction providing robust environmental protection
• Versatile mounting options including PCB pin and quick connect configurations
• Compliant with QS-9000 and ISO-9002 manufacturing standards

Relay Automotive Applications

• Automotive lighting systems
• Lamp accessories
• Heavy-duty vehicle electrical circuits
• High-power accessory control modules

Relay Automotive Procurement Notes

Verify that the specific suffix 'R' corresponds to the required terminal configuration or packaging variant as defined in the official CIT datasheet. Confirm that the 12VDC coil voltage aligns with the target system's electrical architecture. Ensure the chassis mounting style matches the intended installation footprint. Cross-reference the 80A rating against peak load requirements to prevent operational failure under transient conditions.

Relay Automotive Selection Notes

Select this component when a single-pole normally-open configuration is sufficient for controlling high-amperage DC loads. The 12VDC coil specification makes it suitable for standard automotive electrical systems. Consider the physical dimensions and quick-connect terminal style during mechanical design integration. Verify that the operating temperature range of -40°C to 125°C meets the environmental constraints of the deployment location.

Relay Automotive Part Context

This part belongs to the CIT A3M series of automotive relays, which are engineered for durability in harsh vehicular environments. The series offers various contact arrangements and coil voltages to accommodate diverse electrical architectures. The A3M1ASQ12VDC2R specifically addresses applications requiring reliable switching of substantial currents using a standard 12-volt control signal.

Relay Automotive Replacement Considerations

Direct substitutes within the same family include A3M1ASQ12VDC2D and A3M1CSQ12VDC2, though the latter utilizes an SPDT contact form. Ensure any replacement maintains the 12VDC coil voltage and compatible mounting interface. Verify that alternative part numbers support the required 80A switching capacity for equivalent performance.