AZ9731-1A-12DC4R1

Relay Automotive Overview

The AZ9731-1A-12DC4R1 is a 40 Amp Mini-ISO automotive relay manufactured by American Zettler. It features a Single Pole Single Throw (SPST) contact configuration with a 12V DC coil voltage. The device is designed for high-current switching applications within vehicle electrical systems, offering robust performance in demanding environments.

Relay Automotive Feature Summary

• High current capacity of 40 Amps for heavy load switching
• Compact Mini-ISO form factor for space-constrained installations
• Quick connect terminals for simplified assembly and maintenance

Relay Automotive Applications

• Automotive lighting circuits
• Motor control systems
• Heater and blower motor activation

Relay Automotive Procurement Notes

Verify the specific suffix '4R1' against the manufacturer's official datasheet to confirm terminal orientation and packaging details. Ensure the 12V DC coil specification matches the target vehicle's electrical system voltage. Cross-reference the SPST contact type with circuit requirements to prevent functional mismatches during integration.

Relay Automotive Selection Notes

Select this component when a compact, high-current solution is required for 12V automotive systems. The Mini-ISO footprint allows for direct replacement in standard fuse/relay boxes. Consider the 125°C operating temperature rating for under-hood or high-heat proximity installations where thermal resilience is critical.

Relay Automotive Part Context

This part belongs to the AZ9731 series of Mini-ISO automotive relays from American Zettler. The series is engineered for reliability in harsh automotive environments, providing consistent switching performance for high-amperage loads while maintaining a small physical profile suitable for modern vehicle architecture.

Relay Automotive Replacement Considerations

Compatible substitutes include the AZ9731-1A-12DC1 and AZ9731-1C-12DC4R1, which share the same 40A Mini-ISO form factor and SPST functionality. Verify that any alternative variant maintains the identical 12V DC coil requirement and terminal pinout compatibility before substitution.