A2F1ACQ12VDC1.9R

Relay Automotive Overview

The A2F1ACQ12VDC1.9R is a Mini ISO automotive relay manufactured by CIT Relay and Switch. It features an SPST-NO contact arrangement rated for 40A at 14VDC. The coil operates at 12VDC with a resistance of 90 ohms and consumes 1.6W. Key electrical parameters include a maximum switching voltage of 75VDC, maximum switching current of 40A, and initial contact resistance under 30 milliohms. The unit includes a built-in resistor and utilizes bracket mounting.

Relay Automotive Feature Summary

• SPST-NO configuration with high current capacity
• Integrated resistor component included
• Bracket-based mounting design

Relay Automotive Applications

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

Relay Automotive Procurement Notes

Verify the specific suffix 'R' confirms the inclusion of the internal resistor component rather than a diode or no suppression. Ensure the bracket mounting style matches the installation requirements. Confirm RoHS compliance status if required for specific regulatory standards. Cross-reference the coil resistance value to ensure compatibility with the driving circuit logic levels.

Relay Automotive Selection Notes

Select this model when a Mini ISO form factor is required alongside a 12VDC coil interface. The integrated resistor makes it suitable for circuits where voltage spikes must be managed without external components. Consider the 40A rating against the actual load current to ensure adequate margin. Verify that the bracket mounting method aligns with the available chassis or panel space constraints.

Relay Automotive Part Context

This part belongs to the A2F series of Mini ISO relays from CIT Relay and Switch. The series is designed for automotive applications requiring compact size and high switching capacity. Variations in the suffix typically denote different suppression components (diode vs. resistor) and mounting hardware configurations.

Relay Automotive Replacement Considerations

Public confirmed substitute part numbers are not provided in the source documentation. Users should verify pinout compatibility and electrical ratings before substituting with other Mini ISO relays.