A21ACQ12VDC1.9

$1.16

Description：RELAY AUTOMOTIVE SPST 40A 12V
Series：A2
Mfr：CIT Relay and Switch
Package：Tray

SKU:63e57c077377 Category: Automotive Relays Brand: CIT Relay and Switch

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Product introduction

A21ACQ12VDC1.9 is listed in the Relay Automotive range at ChipApex. The manufacturer field lists CIT Relay and Switch. Its product description is RELAY AUTOMOTIVE SPST 40A 12V. Review the specifications below when checking this part for your BOM.

Relay Automotive specifications for A21ACQ12VDC1.9

Description：RELAY AUTOMOTIVE SPST 40A 12V
Series：A2
Mfr：CIT Relay and Switch
Package：Tray
Coil Type：Non Latching
Coil Current：158.3 mA
Coil Voltage：12VDC
Contact Form：SPST-NO (1 Form A)
Contact Rating (Current)：40 A
Switching Voltage：75VDC - Max
Must Operate Voltage：8.4 VDC
Must Release Voltage：1.2 VDC
Operate Time：7 ms
Release Time：5 ms
Features：-
Mounting Type：Socketable
Termination Style：Plug In, Quick Connect - 0.250" (6.3mm)
Operating Temperature：-40°C ~ 125°C

Relay Automotive datasheet and documents for A21ACQ12VDC1.9

A21ACQ12VDC1.9

Relay Automotive Overview

The A21ACQ12VDC1.9 is an automotive relay manufactured by CIT Relay and Switch, designed for demanding vehicle applications. It features a SPST-NO (1 Form A) contact configuration with a 40A current rating and a maximum switching voltage of 75VDC. The coil operates at 12VDC with a power consumption of 1.9W and a resistance of 76 Ohms. The device utilizes quick connect terminals measuring 0.250 inches (6.3mm) for secure electrical connections. It is rated for operation within a temperature range of -40°C to 125°C and meets RoHS3 standards.

Relay Automotive Feature Summary

High switching capacity up to 40A for robust power management
Compact design offering small size and light weight
Sealed construction suitable for harsh automotive environments

Relay Automotive Applications

Automotive power distribution systems
Vehicle control circuits
General electronic equipment requiring high current switching

Relay Automotive Procurement Notes

Verify the specific part number suffix against official CIT Relay and Switch documentation to confirm coil voltage and contact configuration. Ensure compatibility with existing mounting bases and terminal types. Check for updated datasheets regarding environmental ratings and compliance certifications before finalizing procurement decisions.

Relay Automotive Selection Notes

Select this component when a reliable SPST-NO relay with a 40A rating is required for 12VDC automotive systems. Consider the 1.9W coil power and quick connect interface for integration into space-constrained designs. Validate thermal performance within the specified -40°C to 125°C operating range for the intended application environment.

Relay Automotive Part Context

This component belongs to the A21ACQ series of automotive relays from CIT Relay and Switch. The series is engineered for dependable performance in demanding vehicle applications, offering versatility through various contact configurations and coil options. These relays are widely used for power management and control systems in automotive and industrial sectors.