A2H1ASQ12VDC1.6D

Relay Automotive Overview

The A2H1ASQ12VDC1.6D is a sealed automotive relay manufactured by CIT Relay and Switch, designed for high-current switching applications. It features a single pole single throw normally open (SPST-NO) contact configuration with a maximum switching current of 50A at 14VDC. The coil operates on 12VDC with a rated power consumption of 1.6W and a resistance of 90 Ohms. The unit utilizes quick connect terminals for PCB or panel mounting and is certified under QS-9000 and ISO-9002 standards.

Relay Automotive Feature Summary

• Sealed construction suitable for harsh automotive environments
• High switching capacity up to 50A for heavy load control
• Quick connect termination for simplified assembly

Relay Automotive Applications

• Automotive lighting circuits
• Motor control systems
• Heater and blower motor activation

Relay Automotive Procurement Notes

Verify the specific contact rating against your application requirements, as datasheets may list varying current capacities such as 40A or 50A depending on the revision. Confirm that the 12VDC coil voltage aligns with your vehicle's electrical system. Ensure the quick connect terminal width matches your connector specifications before finalizing the order.

Relay Automotive Selection Notes

Select this component when a robust, sealed relay is required for high-current DC loads in automotive settings. The SPST-NO form factor provides simple on/off control. Consider the 1.6W coil power for low energy consumption. Verify thermal management capabilities if operating near the upper temperature limits of -40°C to 125°C.

Relay Automotive Part Context

This part belongs to the CIT A2 series of automotive relays, characterized by compact dimensions and high durability. The series is widely used in modern vehicles for managing auxiliary electrical loads. The 'SQ' suffix typically denotes a socketable design with quick-connect pins, facilitating easy replacement and integration into existing harnesses.

Relay Automotive Replacement Considerations

Direct substitutes include other CIT A2 series relays with identical pinouts and coil voltages, such as the A2S1ASQ12VDC1.6. Ensure any replacement maintains the same SPST-NO contact form and meets or exceeds the 50A switching current requirement for safe operation.