A2M1CSQ12VDC1.6R

Relay Automotive Overview

The A2M1CSQ12VDC1.6R is a Mini ISO automotive relay manufactured by CIT Relay and Switch, designed for high-capacity switching in vehicle applications. It features a 12VDC coil with a resistance of 90 Ohms and consumes 1.6W at rated voltage. The unit supports SPST N.O. contact arrangements (1A) rated at 40A @ 14VDC or SPDT (1C) rated at 40A @ 14VDC. Maximum switching capabilities include 75VDC and 630W. Contact resistance is less than 30 milliohms initially, utilizing AgSnO2 material. Physical dimensions are 26.0 x 26.0 x 24.5 mm, with an overall height of 39.5 mm.

Relay Automotive Feature Summary

• Large switching capacity up to 40A
• Small size and light weight construction
• PCB pin and quick connect mounting available

Relay Automotive Applications

• Automobile electrical systems
• Lamp accessories
• General automotive relay circuits

Relay Automotive Procurement Notes

Verify the specific contact arrangement suffix (e.g., 1A for SPST N.O. or 1C for SPDT) against the required circuit logic before ordering. Confirm that the 12VDC coil voltage aligns with the system's power supply. Ensure the PCB footprint matches the Mini ISO form factor dimensions. Check for RoHS compliance requirements if applicable to the assembly. Validate that the 40A rating meets the load current demands of the intended application.

Relay Automotive Selection Notes

Select this component when a compact, high-current automotive relay is required for 12VDC control circuits. The Mini ISO package allows for dense PCB layouts compared to larger industrial relays. Consider the 1.6W coil power consumption for thermal management within enclosed modules. The AgSnO2 contacts provide durability for resistive loads typical in automotive lighting and accessory circuits. Ensure the operating environment remains within standard automotive temperature ranges.

Relay Automotive Part Context

This model belongs to the CIT A Series Mini ISO relays, which are standardized for automotive use. The series offers various coil voltages and contact configurations to suit different vehicle architectures. The A2M1 variant specifically denotes the Mini ISO form factor with integrated base compatibility. These relays are certified under QS-9000 and ISO-9002 manufacturing standards, ensuring consistency for OEM automotive suppliers.

Relay Automotive Replacement Considerations

Direct replacements must match the Mini ISO footprint and 12VDC coil specifications. Verify that substitute parts support the same 40A @ 14VDC contact rating. Check for identical terminal alignment and pinout configuration to ensure board compatibility. Cross-reference datasheets for any differences in contact material or switching voltage limits.