A2M1CSQ24VDC1.9D

Relay Automotive Overview

The A2M1CSQ24VDC1.9D is an automotive relay manufactured by CIT Relay and Switch, designed for high-current switching applications. It features a SPDT contact arrangement with a maximum switching current of 40A at 14VDC and a maximum switching voltage of 75VDC. The coil operates at a rated voltage of 24VDC, drawing 79.2 mA with a resistance of 302 ohms and consuming 1.9W of power. The unit utilizes AgSnO2 contact material with initial contact resistance under 30 milliohms. Dimensions are 26.0 x 26.0 x 24.5 mm, supporting PCB pin and quick connect mounting.

Relay Automotive Feature Summary

• Large switching capacity up to 40A
• Small size and light weight design
• PCB pin and quick connect mounting available

Relay Automotive Applications

• Automotive electrical systems
• Lamp accessories control
• High-current circuit switching

Relay Automotive Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct coil voltage and contact configuration. Confirm that the requested variant matches the required SPDT arrangement and 24VDC coil specification. Check for RoHS compliance status and manufacturing certifications such as QS-9000 or ISO-9002 if required for your supply chain standards. Ensure mounting type aligns with your assembly process.

Relay Automotive Selection Notes

Select this component when a compact automotive relay with 40A SPDT capability is required. The 24VDC coil rating suits standard vehicle electrical architectures. Consider the quick connect termination style for ease of assembly. Verify that the 75VDC maximum switching voltage meets the load requirements. The small form factor allows for installation in space-constrained automotive compartments.

Relay Automotive Part Context

This part belongs to the CIT automotive relay series, characterized by robust switching performance and compact dimensions. The A2M1 series is engineered for reliability in harsh environments, featuring sealed contacts and certified manufacturing processes. It serves as a critical component for managing high-power loads in modern vehicles, offering a balance of durability and physical footprint.

Relay Automotive Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Cross-referencing requires matching coil voltage, contact arrangement, current rating, and terminal configuration with alternative manufacturers' offerings.