A51CO12VDC1.6

Relay Automotive Overview

The CIT Relay and Switch A51CO12VDC1.6 is an automotive relay featuring a single pole double throw (SPDT) contact configuration with one changeover circuit. It operates on a 12 VDC coil voltage and supports a maximum switching current of 40 A at voltages up to 380 VAC or 75 VDC. The unit utilizes quick-connect terminals for mounting and includes sealed contacts constructed from silver tin oxide material. Designed for robust performance, it functions within a temperature range of -40°C to 125°C and consumes 1.6 W of coil power.

Relay Automotive Feature Summary

• Sealed construction protects internal components against environmental factors
• High current capacity suitable for demanding automotive loads
• Quick-connect terminal style facilitates rapid installation

Relay Automotive Applications

• Automotive power distribution systems
• Vehicle lighting control circuits
• General electronic equipment switching

Relay Automotive Procurement Notes

Verify the specific contact configuration matches the design requirement, as similar part numbers may differ between SPST and SPDT variants. Confirm that the 12 VDC coil voltage aligns with the system supply. Ensure the PCB footprint or socket compatibility corresponds to the intended assembly method before finalizing procurement.

Relay Automotive Selection Notes

Select this component when a changeover contact is required for high-current automotive applications. The sealed design ensures reliability in harsh environments where moisture or dust exposure is likely. Consider the 40 A rating to ensure adequate margin for the load current. Verify that the operating temperature range meets the specific environmental conditions of the target application.

Relay Automotive Part Context

This relay belongs to the A series of automotive relays manufactured by CIT Relay and Switch. The series is characterized by compact dimensions and high switching capacities. These components are engineered for use in vehicle electrical systems and industrial controls, offering a balance of durability and performance through standardized mounting and terminal configurations.

Relay Automotive Replacement Considerations

Compatible substitutes include the A51CS12VDC1.6 and A51AE12VDC1.6, which share similar form factors and electrical ratings. Verify that the replacement maintains the SPDT configuration and 12 VDC coil specification to ensure functional equivalence in the existing circuit.