A3M1CSQ12VDC2D

Relay Automotive Overview

The A3M1CSQ12VDC2D is an active automotive relay from the CIT Relay and Switch A3 series, featuring a non-latching coil design. It utilizes a SPDT (1 Form C) contact arrangement with a heavy-duty switching capacity of up to 80A at 75VDC maximum. The unit operates on a 12VDC coil voltage requiring 150mA current, with a coil resistance of 80 Ohms and power consumption of 1.8W. Key electrical parameters include a 7ms operate time and 5ms release time. The contacts are constructed from AgSnO2/In2O3 material, ensuring low initial contact resistance below 30 milliohms. Designed for chassis mounting, it supports quick connect terminals and functions within a temperature range of -40°C to 125°C.

Relay Automotive Feature Summary

• High switching capacity supporting up to 80A for demanding automotive loads
• Sealed construction providing environmental protection for vehicle applications
• Versatile mounting options including PCB pin and quick connect configurations

Relay Automotive Applications

• Automotive lighting systems
• Lamp accessories control
• General automotive electrical circuits

Relay Automotive Procurement Notes

Verify the specific suffix 'D' against the manufacturer's official documentation to confirm terminal style variations or packaging differences compared to standard variants. Ensure compatibility with QS-9000 and ISO-9002 certified manufacturing requirements if applicable to your supply chain standards. Cross-reference the coil resistance and operating voltage specifications directly with the latest datasheet to prevent integration errors in 12VDC systems.

Relay Automotive Selection Notes

Select this component when a sealed, high-current SPDT relay is required for chassis-mounted automotive installations. The 80A rating distinguishes it from lower-capacity models like the A2 series. Confirm that the 12VDC coil specification aligns with the system's power supply. The sealed design is critical for environments exposed to moisture or dust, differentiating it from open-frame alternatives.

Relay Automotive Part Context

This part belongs to the CIT A3M series of automotive relays, characterized by large switching capacities and robust construction. The series is certified under QS-9000 and ISO-9002 standards, indicating adherence to strict quality management systems for automotive components. The A3M1CSQ variant specifically denotes the SPDT configuration with quick-connect terminals, tailored for reliable performance in vehicle electrical architectures.

Relay Automotive Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify mechanical dimensions and terminal spacing before considering alternative brands.