A2M1CSQ12VDC1.9

Relay Automotive Overview

The A2M1CSQ12VDC1.9 is a sealed automotive relay manufactured by CIT Relay and Switch, designed for chassis mounting with quick connect termination. It features a 12 VDC coil voltage and SPDT (1 Form C) contact configuration. The unit supports a maximum switching current of 40A at 14VDC and handles up to 75VDC switching voltage. Key electrical parameters include a coil resistance of 680 Ohms and a coil power consumption of 1.9W. The device operates within a temperature range of -40°C to +125°C and utilizes AgSnO2 contact material.

Relay Automotive Feature Summary

• Sealed construction suitable for harsh automotive environments
• High switching capacity up to 40A for heavy loads
• Versatile mounting options including metal bracket and quick connect terminals

Relay Automotive Applications

• Automotive lighting circuits
• Lamp accessories control
• General automotive load switching

Relay Automotive Procurement Notes

Verify the specific ordering suffix against official CIT documentation to confirm coil power rating and termination style. Ensure the required contact arrangement matches the SPDT configuration. Confirm compliance with QS-9000 and ISO-9002 manufacturing standards if specified for your supply chain requirements.

Relay Automotive Selection Notes

Select this model when a robust, sealed relay is needed for chassis installation in vehicle systems. The 12VDC coil and 40A SPDT rating suit high-current applications. Consider the 680 Ohm coil resistance for driver circuit compatibility. Verify that the quick connect pin dimensions match the existing harness connectors.

Relay Automotive Part Context

This component belongs to the CIT A2 series of automotive relays, characterized by compact size and high durability. The series is certified under QS-9000 and ISO-9002 standards, ensuring consistent quality for automotive OEM and aftermarket applications. The A2M1 variant specifically denotes the sealed chassis mount design with metal bracket support.

Relay Automotive Replacement Considerations

Compatible substitutes include A2M1CSQ12VDC1.6R and A2M1CSQ12VDC1.9D, provided they meet the same 12VDC coil and SPDT contact requirements. Verify physical dimensions and pinout alignment before substitution.