A3KM1ASQ48VDC1.6D

Relay Automotive Overview

The A3KM1ASQ48VDC1.6D is a micro ISO automotive relay from CIT Relay and Switch, designed for high-current switching applications. It features an SPST-NO (Form A) contact configuration with an 80A rated current capacity at 48VDC. The unit operates on a 48VDC coil voltage and includes an integrated suppression diode to protect against inductive kickback. Constructed with AgSnOInO contact material, it supports a maximum switching voltage of 75VDC and offers quick-connect terminal interfaces for secure mounting.

Relay Automotive Feature Summary

• High-capacity 80A switching capability suitable for demanding automotive loads
• Integrated suppression diode for reliable circuit protection
• Sealed construction ensuring environmental durability
• Quick-connect terminals for efficient chassis installation

Relay Automotive Applications

• Automotive lighting systems
• Vehicle accessory power distribution
• Industrial control circuits requiring high current switching
• Heavy-duty equipment actuation

Relay Automotive Procurement Notes

Verify the specific suffix 'D' confirms the inclusion of the internal suppression diode, as this alters the functional behavior compared to non-diode variants. Ensure the 48VDC coil rating matches the target system voltage precisely. Confirm that the quick-connect pin dimensions align with the intended PCB or harness connector specifications before finalizing procurement.

Relay Automotive Selection Notes

Select this component when an application requires a single-pole normally-open contact capable of handling up to 80A. The 48VDC coil specification is critical for compatibility with heavy vehicle electrical architectures. The sealed design and diode integration make it suitable for harsh environments where noise suppression and moisture resistance are mandatory requirements.

Relay Automotive Part Context

This model belongs to the CIT Maxi series of micro ISO automotive relays. These components are engineered for compact spaces while delivering robust performance. The series utilizes standardized footprints compatible with common automotive relay sockets, facilitating straightforward upgrades or replacements in existing designs without major layout modifications.

Relay Automotive Replacement Considerations

Direct substitutes must match the 80A current rating, 48VDC coil voltage, SPST-NO form, and include an integrated diode. Verify that any replacement part maintains the same quick-connect interface and sealed housing characteristics to ensure physical and electrical compatibility.