A3F1CSQ24VDC2

Relay Automotive Overview

The A3F1CSQ24VDC2 is an automotive relay manufactured by CIT Relay and Switch, designed for high-current switching applications. It features a SPDT (1 Form C) contact configuration with an 80A rated current capacity and a maximum switching voltage of 75VDC. The coil operates at 24VDC with a resistance of 320 Ohms and draws 75 mA. Key electrical parameters include a release voltage of 2.4 VDC, actuation time of 7 ms, and release time of 5 ms. The unit utilizes AgSnOInO contact material and supports a wide operating temperature range from -40°C to 125°C.

Relay Automotive Feature Summary

• SPDT contact configuration provides versatile switching capabilities for complex circuit control.
• High current rating of 80A supports demanding automotive power distribution loads.
• Sealed construction ensures protection against environmental contaminants and moisture.
• Integrated flyback diode protects the driving circuit from inductive voltage spikes.

Relay Automotive Applications

• Automotive power distribution units
• Vehicle lighting systems
• Heater and fan motor control circuits

Relay Automotive Procurement Notes

Verify the specific part number suffix to ensure compatibility with required mounting styles and terminal configurations. Confirm that the 24VDC coil voltage matches the vehicle's electrical system architecture. Check for RoHS compliance requirements if applicable to the end product. Ensure the selected base socket supports the quick-connect terminal style specified in the datasheet. Validate thermal management strategies for continuous operation near the upper temperature limit.

Relay Automotive Selection Notes

Select this component when a single pole double throw configuration is necessary for load routing. The 80A rating makes it suitable for high-power accessories compared to lower-rated alternatives. Consider the 75VDC maximum switching voltage when interfacing with DC loads. The sealed design is preferred for under-hood or exposed environments. Evaluate the 7ms actuation speed against timing requirements for sensitive electronic controls.

Relay Automotive Part Context

This model belongs to the A3 series of automotive relays from CIT Relay and Switch. The series is characterized by robust construction for harsh automotive environments. The A3F1CSQ24VDC2 specifically denotes the SPDT variant within this lineup. It shares mechanical dimensions with other variants in the family but differs in contact form and coil specifications.

Relay Automotive Replacement Considerations

Direct substitutes must match the SPDT contact form, 24VDC coil voltage, and 80A current rating. Verify pinout compatibility and terminal type before substitution. Alternative models may require adapter sockets if terminal styles differ. Ensure the replacement maintains the same sealing class and temperature range.