A51AO24VDC1.6

Relay Automotive Overview

The A51AO24VDC1.6 is a general-purpose power relay manufactured by CIT Relay and Switch, designed for robust switching applications. It features an SPST-NO (Form A) contact configuration capable of handling up to 40A at maximum switching voltages of 380VAC or 75VDC. The coil operates on 24VDC with a must-operate voltage of 16.8VDC, drawing 66.7mA of current. Key timing parameters include an operate time of 5ms and a release time of 3ms. The component is housed in a plugin package suitable for through-hole mounting.

Relay Automotive Feature Summary

• High current capacity of 40A for demanding load switching
• Fast mechanical response with 5ms operate and 3ms release times
• Robust contact rating supporting high AC and DC voltages

Relay Automotive Applications

• Automotive accessory circuits such as fog lights
• Horn activation systems
• General purpose industrial control panels

Relay Automotive Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct coil voltage and contact form compatibility. Confirm that the plugin package dimensions align with the target PCB footprint. Check for RoHS compliance status if environmental regulations apply to the final assembly. Ensure the operating temperature range meets the system requirements.

Relay Automotive Selection Notes

Select this model when a single normally open contact is required for high-current loads up to 40A. The 24VDC coil specification makes it suitable for standard automotive and industrial control systems. Consider the fast switching speed for applications requiring precise timing. Evaluate the physical size constraints of the plugin package against available board space.

Relay Automotive Part Context

This component belongs to the A51 series of relays from CIT Relay and Switch. The series is engineered for reliability in harsh environments, offering high contact durability. The A51 series provides versatile configurations for various power management needs across automotive and industrial sectors.

Relay Automotive Replacement Considerations

Cross-reference with other A51 series variants for different coil voltages or contact forms. Verify pinout compatibility before substituting with generic 40A SPST-NO relays. Ensure the replacement part matches the 24VDC coil electrical characteristics and physical dimensions.