A51CS24VDC1.9U

Relay Automotive Overview

The A51CS24VDC1.9U is an automotive relay manufactured by CIT Relay and Switch, designed for high-current switching applications. It features a single-pole double-throw (SPDT) contact configuration with one Form C set. The coil operates at 24 VDC with a non-latching function. The component supports PC board mounting and accommodates a contact current rating of 40 Amps. It is classified as fully sealed and operates within a temperature range of -40°C to 85°C.

Relay Automotive Feature Summary

• High current capacity supporting up to 40 Amps
• Single Side Stable (Non-Latching) coil operation
• Fully sealed construction for environmental protection
• PC Board pin mounting style

Relay Automotive Applications

• Automotive electrical systems
• Industrial control circuits
• Power distribution units

Relay Automotive Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm exact coil voltage, contact configuration, and mounting type. Ensure the selected variant matches the required PCB footprint and thermal specifications for the intended application environment.

Relay Automotive Selection Notes

Select this component when a 40 Amp SPDT switching capability is required in a compact form factor. Confirm that the 24 VDC coil voltage aligns with the system power supply and that the PC board mounting style is compatible with the assembly process.

Relay Automotive Part Context

This part belongs to the CIT Relay and Switch automotive relay series, characterized by robust sealing and high current ratings. It serves as a specialized solution for demanding environments where standard relays may not provide sufficient amperage or durability.

Relay Automotive Replacement Considerations

Consult official cross-reference guides for verified substitutes. Ensure replacement parts match the 40A rating, SPDT configuration, and 24VDC coil requirements.