A31UCQ12VDC1R

Relay Automotive Overview

The A31UCQ12VDC1R is a power relay manufactured by CIT Relay and Switch, designed for high-current switching applications. It operates with a 12VDC coil voltage and draws a coil current of 150mA, resulting in a coil power consumption of 1.8W. The component features a Single Pole Single Throw Normally Open (SPST-NO) contact arrangement. It is rated for a standard contact current of 40A at 14VDC and supports a maximum switching voltage of 75VDC. The unit utilizes AgSnO2 contact material to ensure reliable performance under heavy load conditions.

Relay Automotive Feature Summary

• Features a SPST-NO contact configuration for single-circuit control
• Capable of handling high switching currents up to 40A at 14VDC
• Operates on a 12VDC coil supply with low power consumption
• Utilizes silver tin oxide contacts for durability

Relay Automotive Applications

• Automotive electrical systems
• Lamp accessories and lighting control
• General purpose industrial switching

Relay Automotive Procurement Notes

Verify the specific ordering suffix against official CIT documentation to confirm the exact contact form and mounting style. Ensure the application environment remains within the specified 75VDC maximum switching voltage limit. Confirm that the required load current does not exceed the 40A rating at 14VDC. Check for any specific RoHS compliance requirements if applicable to your manufacturing process. Cross-reference the datasheet version date to ensure compatibility with current design standards.

Relay Automotive Selection Notes

Select this model when a normally open single-pole circuit is required for moderate to high current loads. The 12VDC coil voltage makes it suitable for automotive and battery-powered systems. Consider the physical dimensions and mounting options provided in the datasheet for PCB integration. Evaluate the thermal management needs given the 1.8W coil power dissipation. Compare against other A-series variants if different contact arrangements or higher current ratings are needed.

Relay Automotive Part Context

This component belongs to the CIT A-Series line of electromechanical relays, which are engineered for robust performance in demanding environments. The series includes various contact arrangements and coil voltages to support diverse industrial and automotive needs. CIT Relay and Switch manufactures these components with certifications such as QS-9000 and ISO-9002, ensuring consistent quality and reliability for critical switching applications.

Relay Automotive Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data. Consult the official CIT catalog for direct replacements or cross-reference similar SPST-NO relays with matching 12VDC coil and 40A contact ratings from other manufacturers if necessary.