A2H1CSQ24VDC1.6R

Relay Automotive Overview

The A2H1CSQ24VDC1.6R is a sealed SPDT automotive relay manufactured by CIT Relay & Switch, designed for high-current switching applications. It features a 24VDC coil with 1.6W power consumption and an internal resistor. The unit utilizes quick connect termination and includes a metal bracket and shroud for secure mounting. Rated for up to 50A contact current and 75VDC switching voltage, it employs AgSnO2 contacts. Operating temperature ranges from -40°C to 125°C, ensuring reliability in demanding automotive environments.

Relay Automotive Feature Summary

• Sealed SPDT design with metal bracket and shroud for robust protection
• High switching capacity supporting up to 50A contact current
• Quick connect termination facilitates rapid installation
• Integrated internal resistor simplifies circuit integration

Relay Automotive Applications

• Automotive electrical systems
• Lamp accessories control
• Industrial equipment switching
• General purpose high-current relay applications

Relay Automotive Procurement Notes

Verify the specific suffix 'R' indicates the inclusion of an internal resistor, as this affects circuit design requirements. Confirm that the 24VDC coil voltage matches the target system's supply capabilities. Ensure the quick connect pin configuration aligns with existing harness connectors. Check RoHS compliance status if environmental regulations apply to the final assembly.

Relay Automotive Selection Notes

Select this component when a sealed, high-current SPDT relay is required for automotive or industrial use. The 24VDC coil specification suits standard heavy-duty vehicle electrical architectures. The integrated resistor eliminates the need for external flyback diodes or resistors in many designs. Consider the physical dimensions and mounting bracket requirements for enclosure space planning.

Relay Automotive Part Context

This part belongs to the A2 series of automotive relays from CIT Relay & Switch, characterized by compact size and high durability. The A2H variant specifically denotes the sealed construction with metal shielding. This series is widely used in modern vehicles for managing high-load components such as lighting, heating elements, and auxiliary motors.

Relay Automotive Replacement Considerations

Direct substitutes within the same series include A2S1CSQ24VDC1.6R and A2M1USP24VDC1.6D1, though contact arrangements may differ. Verify coil resistance and contact rating compatibility before substitution. Ensure the replacement maintains the sealed environment and quick connect interface specifications.