A2S1CSQ24VDC1.9

Relay Automotive Overview

The A2S1CSQ24VDC1.9 is an automotive relay manufactured by CIT Relay and Switch, featuring a SPDT (1 Form C) contact arrangement. It operates with a 24VDC coil voltage and supports a maximum switching voltage of 75VDC. The component provides a large switching capacity up to 40A at 14VDC for normally open contacts. Designed for chassis mounting, it utilizes both PCB pins and quick connect terminals. The unit exhibits a small size and light weight profile, suitable for automobile applications.

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

• Automobile electrical systems
• Lamp accessories control
• General automotive relay circuits

Relay Automotive Procurement Notes

Verify the specific ordering suffix against official CIT Relay and Switch documentation to ensure correct coil resistance and terminal configuration. Confirm that the SPDT contact arrangement matches the circuit requirements. Check RoHS compliance status if required by project specifications. Ensure the 24VDC coil voltage aligns with the system power supply. Validate physical dimensions for chassis mounting clearance.

Relay Automotive Selection Notes

Select this model when a SPDT configuration is required for automotive loads up to 40A. The 24VDC coil voltage suits standard heavy-duty vehicle electrical systems. Consider the dual mounting options for flexible PCB or panel integration. Verify that the 75VDC switching voltage rating exceeds the maximum load voltage in the application circuit.

Relay Automotive Part Context

This component belongs to the CIT automotive relay series, designed for high-current switching in vehicle environments. The A2S series typically features robust construction for vibration resistance. Similar models in the lineup vary by coil voltage and contact arrangement, such as SPST variants. The manufacturer emphasizes QS-9000 and ISO-9002 certified manufacturing processes for quality assurance.

Relay Automotive Replacement Considerations

Cross-reference part numbers like A2S1CSQ24VDC1.6D or A2S1CSQ24VDC1.9D from CIT Relay and Switch. Verify identical coil voltage, contact arrangement, and current ratings before substitution. Ensure mechanical footprint and terminal types match the existing board layout.