A2S1CSQ12VDC1.6R

Relay Automotive Overview

The A2S1CSQ12VDC1.6R is a sealed SPDT automotive relay from the CIT A2 series, designed for high-current switching applications in vehicle and lamp accessory circuits. It features a 12VDC coil with 1.6W power consumption and includes an integrated 680-ohm resistor to suppress voltage spikes. The unit utilizes quick-connect terminals (0.250 inch) and offers a maximum switching current of 40A at 14VDC. Constructed with AgSnO2 contacts, it provides reliable performance within a compact form factor suitable for PCB pin or bracket mounting.

Relay Automotive Feature Summary

• Sealed construction with metal bracket and shroud for environmental protection
• Integrated 680-ohm resistor for coil voltage spike suppression
• Quick-connect termination style for rapid assembly
• SPDT contact arrangement providing versatile circuit control

Relay Automotive Applications

• Automotive electrical systems
• Lamp accessories and lighting circuits
• High-current load switching in vehicles

Relay Automotive Procurement Notes

Verify that the specific suffix 'R' denotes the inclusion of the 680-ohm resistor, as standard variants may lack this component. Confirm the contact arrangement matches the required SPDT configuration for the target application. Ensure the quick-connect terminal width aligns with existing harness connectors. Check RoHS compliance status if restricted substances are a concern for the end product.

Relay Automotive Selection Notes

Select this model when a normally open/normally closed SPDT configuration is required for 12VDC automotive loads up to 40A. The built-in resistor eliminates the need for external flyback diodes or snubbers, simplifying design. Consider the physical dimensions and mounting options if space is constrained. This relay is appropriate for environments requiring sealed components to resist moisture and vibration.

Relay Automotive Part Context

This component belongs to the CIT A2 series of automotive relays, which are characterized by their small size, light weight, and large switching capacity. The series is certified under QS-9000 and ISO-9002 standards, ensuring quality for automotive manufacturing. Variants within the series differ by contact arrangement (SPST/SPDT), coil voltage, and sealing options, allowing customization for diverse vehicle electrical architectures.

Relay Automotive Replacement Considerations

Direct substitutes include other A2 series models with matching SPDT contacts and 12VDC coils, such as A2S1ASQ12VDC1.6 for SPST applications if contact change is acceptable. Models without the resistor suffix may require external suppression components. Verify that any replacement maintains the 40A rating and quick-connect terminal compatibility.