A3F1ASQ12VDC2

Relay Automotive Overview

The A3F1ASQ12VDC2 is a fully sealed automotive relay manufactured by CIT Relay and Switch. It features an SPST-NO (Form A) contact configuration with a heavy-duty rating of 80A at 14VDC. The coil operates at 12VDC with a power consumption of 1.6W. Key electrical parameters include a maximum switching voltage of 75VDC, a must-operate voltage of 8.4VDC, and a must-release voltage of 1.2VDC. Contact resistance is less than 30 milliohms initially, utilizing AgSnO2 In2O3 contact material. The device supports chassis mounting and functions within a temperature range of -40°C to 125°C.

Relay Automotive Feature Summary

• Fully sealed construction for environmental protection
• Heavy-duty switching capacity up to 80A
• SPST-NO contact arrangement for single circuit control
• Compatible with quick connect terminal styles

Relay Automotive Applications

• Automotive lighting systems
• Lamp accessories
• High-current automotive circuits

Relay Automotive Procurement Notes

Verify the specific datasheet version for the A3F1ASQ12VDC2 to confirm current RoHS compliance status and manufacturing certifications such as QS-9000 or ISO-9002. Ensure that the required coil voltage matches the 12VDC specification and that the chassis mounting style aligns with the target assembly design. Cross-reference the contact material composition to guarantee compatibility with the intended load characteristics.

Relay Automotive Selection Notes

Select this component when a high-current single-pole switch is required in automotive environments. The 80A heavy-duty rating distinguishes it from standard variants suitable for lower loads. Verify that the 12VDC coil voltage matches the vehicle's electrical system. The sealed design is essential for applications exposed to moisture or dust, ensuring long-term reliability in harsh operating conditions compared to open-frame alternatives.

Relay Automotive Part Context

This relay belongs to the A3 series of automotive relays from CIT Relay and Switch. The series is characterized by large switching capacities and robust construction suitable for automobile applications. The A3F1ASQ12VDC2 specifically denotes the Form A contact type, 12VDC coil, and sealed housing variant within this product line, designed for durability in demanding transport sectors.

Relay Automotive Replacement Considerations

Direct substitutes within the same family include A3M1ASQ12VDC2D and A3F1CSP6VDC2D. Verify that alternative part numbers maintain the identical 12VDC coil voltage and SPST-NO contact configuration to ensure functional equivalence without redesigning the host circuit board or wiring harness.