A2F1ASQ12VDC1.6

Relay Automotive Overview

The A2F1ASQ12VDC1.6 is an automotive relay from the CIT Relay and Switch A2 series, designed for high-current switching applications. It features a SPST-NO (Form A) contact arrangement with a maximum switching current of 40A at 14VDC and a maximum switching voltage of 75VDC. The coil operates at a rated voltage of 12VDC with a resistance of 90 Ohms and a power consumption of 1.6W. The unit utilizes silver tin oxide (AgSnO2) contacts to ensure low initial contact resistance of less than 30 milliohms. It supports quick connect mounting terminals measuring 0.250 inches (6.3mm) and is certified under QS-9000 and ISO-9002 standards.

Relay Automotive Feature Summary

• Large switching capacity up to 40A for demanding automotive loads
• Compact physical design offering small size and light weight characteristics
• Versatile mounting options including PCB pins and quick connect terminals

Relay Automotive Applications

• Automotive electrical systems
• Lamp accessories control
• High-current circuit switching in vehicles

Relay Automotive Procurement Notes

Verify that the specific part number suffix matches the required coil voltage and contact configuration. Confirm RoHS compliance status if environmental regulations apply to your assembly. Ensure the mounting style aligns with the PCB footprint or socket requirements. Check for any recent datasheet updates regarding mechanical dimensions or thermal ratings before finalizing the bill of materials.

Relay Automotive Selection Notes

Select this component when a single-pole normally-open configuration is required for circuits operating up to 40A. The 12VDC coil rating makes it suitable for standard automotive electrical architectures. Consider the 75VDC maximum switching voltage limit when designing for higher voltage DC applications. The quick connect terminal style facilitates rapid assembly and maintenance compared to solder-only connections.

Relay Automotive Part Context

This relay belongs to the CIT A2 series, which is characterized by robust construction for automotive environments. The series includes various contact arrangements and coil voltages to support different vehicle electrical loads. The A2F1ASQ12VDC1.6 specifically addresses the need for reliable switching in high-amperage circuits while maintaining a compact form factor suitable for modern vehicle packaging constraints.

Relay Automotive Replacement Considerations

Compatible substitutes within the same family include variants with different coil voltages such as 6VDC or 24VDC models, provided the system voltage is adjusted accordingly. Other SPST-NO relays from the A2 series may serve as functional replacements if pinout and terminal styles are identical. Verify that any alternative part maintains the 40A current rating and 75VDC voltage capability.