A2F1ACQ24VDC1.9D

Relay Automotive Overview

The A2F1ACQ24VDC1.9D is a general-purpose automotive relay manufactured by CIT Relay and Switch, designed for high-current switching applications. It features an SPST-NO (Form A) contact configuration with a maximum current rating of 40 A. The coil operates at 24 VDC with a resistance of approximately 303 Ohms and a current draw of 79.2 mA. Key electrical parameters include a switching voltage of up to 277 VAC or 110 VDC, a maximum load capacity of 9600 VA or 1120 W, and a coil insulation class of F. The unit supports PCB pin mounting and functions within a temperature range of -40°C to 125°C.

Relay Automotive Feature Summary

• High switching capacity rated for 40 A continuous current
• Compact design optimized for automotive environments
• Dual mounting options including PCB pins and quick connect terminals

Relay Automotive Applications

• Automotive electrical systems
• Industrial control circuits
• Power distribution units

Relay Automotive Procurement Notes

Verify the specific ordering suffix against official CIT documentation to ensure correct coil voltage and contact form. Confirm that the required mounting style matches the available PCB pin or flange configurations. Check certification marks such as cURus or TUV if regulatory compliance is mandatory for the target application. Ensure the operating temperature range meets environmental requirements before finalizing procurement.

Relay Automotive Selection Notes

Select this component when a 24 VDC coil voltage is required for driving high-load circuits in automotive or industrial settings. The 40 A rating makes it suitable for heavy-duty loads compared to standard low-current relays. Consider the physical footprint and mounting method compatibility with existing PCB layouts or panel designs. Verify that the SPST-NO configuration aligns with the logical control requirements of the system.

Relay Automotive Part Context

This part belongs to the A2F series of mini ISO automotive relays from CIT Relay and Switch. The series is characterized by robust construction and high current handling capabilities. Variations within the series typically differ by coil voltage, contact configuration, and mounting style. The A2F1ACQ24VDC1.9D specifically denotes the 24 VDC coil variant with SPST-NO contacts.

Relay Automotive Replacement Considerations

Public confirmed substitute part numbers are not provided in the source data. Users should consult CIT Relay and Switch technical support or authorized distributors for verified cross-reference information. Ensure any replacement maintains identical coil voltage, contact rating, and mechanical dimensions.