A3KM1CSQ24VDC1.6D

Relay Automotive Overview

The A3KM1CSQ24VDC1.6D is an automotive relay manufactured by CIT Relay and Switch, designed for chassis mounting applications. It features a single-pole double-throw (SPDT) contact configuration with one Form C switch. The coil operates at 24VDC with a power consumption of 1.6W and a resistance of approximately 384 Ohms. The relay supports a maximum switching current of 150A at up to 75VDC. It includes a built-in diode for inductive load protection and utilizes quick-connect terminals sized at 0.250 inches (6.3mm). The unit is fully sealed and rated for operation within a temperature range of -40°C to 125°C.

Relay Automotive Feature Summary

• SPDT contact configuration providing versatile switching capabilities for complex circuit control
• High current carrying capacity suitable for demanding automotive electrical loads
• Integrated suppression diode protects against voltage spikes from inductive loads
• Fully sealed construction ensures reliability in harsh environmental conditions

Relay Automotive Applications

• Automotive lighting circuits
• Motor control systems
• Heater and fan controls

Relay Automotive Procurement Notes

Verify the specific pinout configuration and terminal orientation against the official datasheet before integration. Confirm that the 24VDC coil voltage matches the vehicle's electrical system requirements. Ensure the chassis mount style aligns with the available space and mechanical constraints of the target assembly. Check for any regional compliance certifications required for the end application.

Relay Automotive Selection Notes

Select this model when a high-current SPDT switching solution is required for 24V automotive systems. The 150A rating accommodates heavy loads such as large motors or heating elements. The sealed design makes it appropriate for under-hood or exposed environments where moisture and dust resistance are critical. Compare coil power consumption against available driver capacity.

Relay Automotive Part Context

This component belongs to the CIT Relay and Switch automotive series, characterized by robust construction and high current handling. The A3K series typically denotes maxi relays designed for heavy-duty applications. The specific suffix indicates the coil voltage, contact form, and inclusion of internal suppression components. These relays are engineered to meet stringent automotive industry standards for durability and performance.

Relay Automotive Replacement Considerations

Direct substitutes must match the 24VDC coil voltage, SPDT contact form, and 150A current rating. Verify that alternative parts support the same quick-connect terminal size and chassis mounting style. Ensure the replacement also includes a built-in diode if the original circuit relies on it for arc suppression. Cross-reference physical dimensions to guarantee fit within the existing housing.