A3K1CSQ12VDC1.6R

Relay Automotive Overview

The A3K1CSQ12VDC1.6R is a sealed SPDT automotive relay from the CIT A3K series, designed for high-current applications. It features a 12VDC coil with a 1.6W power rating and includes an integrated 680-ohm resistor. The switch contacts are rated for up to 80A at 14VDC and can handle a maximum switching voltage of 145VDC. Constructed with AgSnO2 contact material, it offers low initial contact resistance below 30 milliohms. The unit utilizes quick connect termination and is suitable for automobile and lamp accessory mounting.

Relay Automotive Feature Summary

• Sealed construction with metal bracket and shroud for environmental protection
• Integrated 680-ohm resistor within the coil circuit
• High switching capacity supporting heavy-duty loads up to 80A
• Quick connect termination compatible with standard automotive sockets

Relay Automotive Applications

• Automotive lighting systems
• Heavy-duty vehicle electrical circuits
• Lamp accessories control
• General-purpose automotive relays

Relay Automotive Procurement Notes

Verify that the specific suffix 'R' denotes the inclusion of the internal 680-ohm resistor, as this distinguishes it from non-resistor variants. Confirm the package type matches the required socket or PCB layout. Ensure the 145VDC maximum switching voltage aligns with the target circuit requirements. Check for RoHS compliance status if restricted substances are a concern. Validate the quick connect pin dimensions against existing harness connectors.

Relay Automotive Selection Notes

Select this model when a high-capacity SPDT relay is required for automotive environments. The integrated resistor simplifies driver circuit design by reducing inductive kickback without external components. Consider the 80A rating for loads exceeding standard relay capabilities. The sealed design ensures reliability in harsh conditions. Compare coil resistance and current draw against available driver outputs to ensure proper actuation.

Relay Automotive Part Context

This component belongs to the CIT A3K Maxi Relay series, which focuses on high-current switching solutions. The series is certified under QS-9000 and ISO-9002 manufacturing standards. It complements lower-capacity models like the A2M and A61 series by offering significantly higher amperage ratings. The product line is optimized for automotive and industrial applications requiring robust performance.

Relay Automotive Replacement Considerations

Direct substitutes include other CIT A3K series relays with matching coil voltages and contact forms. Verify that any replacement maintains the 145VDC maximum switching voltage limit. Ensure the physical footprint and pin configuration match the existing socket. Non-CIT equivalents must be checked for comparable current ratings and sealing standards.