A2HF1ASQ12VDC1.6

Relay Automotive Overview

The A2HF1ASQ12VDC1.6 is a sealed automotive relay manufactured by CIT Relay and Switch, designed for high-current switching applications. It features an SPST-NO (Form A) contact arrangement with a maximum switching current of 40A at 14VDC and a maximum switching voltage of 75VDC. The coil operates at 12VDC with a rated power of 1.6W and a resistance of 90 Ohms. The unit utilizes quick connect termination style and supports base mounting. It functions within a temperature range of -40°C to 125°C.

Relay Automotive Feature Summary

• Sealed construction suitable for harsh automotive environments
• High switching capacity up to 40A
• Compact size and lightweight design
• Quick connect termination available

Relay Automotive Applications

• Automotive electrical systems
• Lamp accessories control
• General automotive load switching

Relay Automotive Procurement Notes

Verify the specific suffix 'HF' against official CIT documentation to confirm it denotes the correct sealing or environmental rating variant. Ensure the 12VDC coil voltage matches the target circuit requirements. Confirm that the SPST-NO contact form aligns with the intended logic. Cross-reference the quick connect pin dimensions with the mating connector specifications to ensure mechanical compatibility during installation.

Relay Automotive Selection Notes

Select this component when a single-pole normally-open configuration is required for automotive loads up to 40A. The 12VDC coil voltage makes it compatible with standard vehicle electrical architectures. Consider the sealed design for protection against moisture and dust in under-hood or exterior applications. Verify that the operating temperature range of -40°C to 125°C meets the environmental conditions of the deployment site.

Relay Automotive Part Context

This part belongs to the CIT A2 series of automotive relays, which are characterized by their small footprint and high current handling capabilities. The series includes various contact forms and coil voltages to support diverse automotive switching needs. The A2 series is certified under QS-9000 and ISO-9002 standards, indicating adherence to quality management systems relevant to the automotive industry supply chain.

Relay Automotive Replacement Considerations

Direct substitutes include other CIT A2 series models with identical coil voltage and contact form, such as A2S1ASQ12VDC1.6 or A2M1USP12VDC1.6, provided the physical mounting and terminal configurations are compatible. Verify that any replacement maintains the same 40A switching capacity and sealed construction requirements.