AZ9741-1C-24DE

Relay Automotive Overview

The American Zettler AZ9741-1C-24DE is a 40A Mini-ISO automotive electromechanical relay featuring a 24VDC coil with 360 Ohm resistance. It utilizes a Single Pole Double Throw (SPDT) configuration, providing one normally open contact rated at 40A and one normally closed contact rated at 30A. The component measures 26.5x26.5x24.5mm and employs Through-Hole Technology for PCB mounting. Designed for high-current switching in automotive environments, it complies with RoHS standards.

Relay Automotive Feature Summary

• High current capacity of 40A for demanding automotive loads
• SPDT switching architecture with distinct NO and NC ratings
• Mini-ISO form factor designed for standard automotive sockets

Relay Automotive Applications

• Automotive lighting circuits
• Vehicle heating and cooling systems
• High-power accessory control modules

Relay Automotive Procurement Notes

Verify the specific ordering suffix to confirm coil voltage and contact configuration. Ensure compatibility with Mini-ISO socket bases for proper mechanical installation. Confirm RoHS compliance requirements if applicable to your assembly process. Check manufacturer documentation for thermal derating curves relevant to ambient operating temperatures.

Relay Automotive Selection Notes

Select this model when a 24VDC control signal is available and high current switching is required. The SPDT configuration allows for complex circuit logic compared to simple ON/OFF relays. Consider the physical dimensions and through-hole mounting style against available PCB space and manufacturing capabilities.

Relay Automotive Part Context

This component belongs to the AZ9741 series of Mini-ISO automotive relays manufactured by American Zettler. The series is characterized by robust construction suitable for harsh automotive environments. Variations within the series typically differ by coil voltage and contact arrangement while maintaining the same physical footprint.

Relay Automotive Replacement Considerations

Direct substitutes include other Mini-ISO format relays with identical pinout and 40A rating. Verify coil resistance and voltage tolerance before swapping. Ensure the replacement supports the required SPDT configuration and meets the same environmental standards.