A2F1ACQ12VDC1.6D

Relay Automotive Overview

The A2F1ACQ12VDC1.6D is a Mini ISO automotive relay manufactured by CIT Relay and Switch, designed for high-current switching applications. It features an SPST (Single Pole Single Throw) normally open contact configuration with a maximum switching capacity of 40A at 14VDC. The coil operates on a rated voltage of 12VDC, drawing approximately 133.3mA, with a coil resistance of 90 ohms (+/- 10%). The unit includes an integrated diode for transient suppression and supports quick connect mounting terminals alongside PCB pin options. Its compact dimensions are 26.0 x 26.0 x 24.5 mm, ensuring lightweight performance suitable for space-constrained automotive environments.

Relay Automotive Feature Summary

• High switching capacity up to 40A for demanding electrical loads
• Integrated diode protection for coil transient suppression
• Compact Mini ISO form factor with lightweight construction
• Versatile mounting options including quick connect and PCB pins

Relay Automotive Applications

• Automotive lighting circuits
• Lamp accessories control
• General automotive electrical load switching

Relay Automotive Procurement Notes

Verify the specific suffix 'D' indicates the inclusion of a built-in diode, as this affects circuit compatibility compared to resistor or bare-coil variants. Confirm that the package type aligns with the required chassis or PCB mounting method. Ensure the 12VDC coil rating matches the vehicle's electrical system voltage to prevent under-driving or overheating. Check RoHS compliance status if environmental regulations apply to the final assembly.

Relay Automotive Selection Notes

Select this component when a single-pole normally-open switch is required for loads up to 40A in automotive systems. The 12VDC coil specification makes it compatible with standard vehicle battery voltages. Consider the integrated diode feature for simplifying driver circuit design by eliminating external flyback components. Evaluate the physical dimensions against available space constraints within the vehicle's fuse box or junction block.

Relay Automotive Part Context

This relay belongs to the A2 series from CIT Relay and Switch, which focuses on Mini ISO automotive relays. The series is certified under QS-9000 and ISO-9002 standards, indicating adherence to quality management systems common in the automotive supply chain. The A2 series is characterized by its small size, light weight, and robust contact materials, specifically AgSnO2, to ensure reliable operation over many cycles.

Relay Automotive Replacement Considerations

Direct substitutes include other Mini ISO SPST 40A 12VDC relays with similar coil characteristics. Variants such as A2F1ACQ12VDC1.6R may offer different transient suppression methods (resistor vs. diode). Ensure any replacement maintains the same contact arrangement (SPST N.O.) and current rating to avoid circuit failure.