A21ACQ12VDC1.6D

Relay Automotive Overview

The A21ACQ12VDC1.6D is an automotive relay manufactured by CIT Relay and Switch, designed for high-current switching applications. It features a SPST-NO contact arrangement with a 40A rated current at 14VDC and a maximum switching voltage of 75VDC. The coil operates at 12VDC with a resistance of 90 Ohms and consumes 1.6W of power. Key electrical parameters include a 7ms operating time and a 5ms release time. The unit supports quick connect mounting and functions within a temperature range of -40°C to +125°C.

Relay Automotive Feature Summary

• High switching capacity up to 40A for demanding automotive loads
• Compact design offering small size and light weight characteristics
• Dual mounting flexibility with available PCB pin and quick connect options
• Sealed construction suitable for harsh automotive environments

Relay Automotive Applications

• Automotive electrical systems
• Lamp accessories control
• General automotive load switching

Relay Automotive Procurement Notes

Verify the specific suffix 'D' against official CIT documentation to confirm if it denotes a distinct variant or packaging difference compared to the standard A21ACQ12VDC1.6 model. Ensure compatibility with existing socket infrastructure and verify RoHS compliance status for the specific batch before integration into final assemblies.

Relay Automotive Selection Notes

Select this component when a compact, high-current automotive relay is required for 12VDC systems. The SPST-NO configuration and 40A rating make it suitable for heavy loads. Consider the quick connect interface for ease of assembly and the wide operating temperature range for under-hood applications where thermal stability is critical.

Relay Automotive Part Context

This part belongs to the CIT A2 series of automotive relays, which are engineered for reliability in vehicle electronics. The series emphasizes cost-effective manufacturing and quality certification, including QS-9000 and ISO-9002 standards. These relays are widely used in original equipment manufacturer (OEM) designs and aftermarket replacements for various automotive circuits.

Relay Automotive Replacement Considerations

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