A2M1CSQ48VDC1.6R

Relay Automotive Overview

The A2M1CSQ48VDC1.6R is an automotive relay from the CIT Relay and Switch A2 series, designed for high-current switching applications. It features a SPDT (1 Form C) contact arrangement with a maximum switching current of 40A at 14VDC and a maximum switching voltage of 75VDC. The coil operates at 48VDC with a rated power of 1.6W and resistance of 1.44 kOhms. Constructed with AgSnO2 contacts, it offers low initial contact resistance under 30 milliohms. The unit supports chassis mounting via quick connect terminals and is sealed for durability in harsh environments.

Relay Automotive Feature Summary

• High switching capacity up to 40A with small size and light weight design
• Sealed construction suitable for automobile and lamp accessories
• Quick connect mounting available for efficient installation

Relay Automotive Applications

• Automotive electrical systems
• Lamp accessory control circuits
• High-current load switching in vehicles

Relay Automotive Procurement Notes

Verify that the specific suffix 'R' aligns with your required configuration, as ordering suffixes may denote specific manufacturing variations or packaging formats without altering the core electrical function. Confirm the 48VDC coil voltage matches your system's supply to ensure proper actuation. Check for RoHS compliance status if environmental regulations apply to your assembly. Ensure the quick connect terminal style matches your harness connectors for physical compatibility.

Relay Automotive Selection Notes

Select this model when a SPDT configuration is required for high-current automotive loads up to 40A. The 48VDC coil rating distinguishes it from standard 12V or 24V variants, making it suitable for heavy-duty vehicle applications. Consider the sealed design for protection against moisture and dust compared to open-frame alternatives. Verify that the 1.44 kOhms coil resistance fits your driver circuit capabilities.

Relay Automotive Part Context

This component belongs to the CIT A2 series of automotive relays, which are characterized by large switching capacities and compact dimensions. The series includes various contact arrangements and coil voltages, all sharing common traits like AgSnO2 contact materials and quick connect mounting options. The A2M1CSQ48VDC1.6R specifically utilizes the M-series form factor with a 48VDC coil and SPDT contacts.

Relay Automotive Replacement Considerations

Public confirmed substitute part numbers are not provided in the source documentation.