MSS1278-105KLD

Fixed Inductors Overview

The Coilcraft MSS1278-105KLD is a shielded surface-mount power inductor from the MSS1278 series, designed for automotive applications. It features a ferrite core and meets AEC-Q200 Grade 3 qualification standards, ensuring reliability within an operating temperature range of -40°C to +85°C. The component has a nominal inductance of 1 mH with a tolerance of ±10%. It supports a maximum DC current of 0.6 A and exhibits a maximum DC resistance of 1.483 Ohms. The physical package dimensions are 12.3 mm in length, 12.3 mm in width, and 8 mm in height.

Fixed Inductors Feature Summary

• Shielded construction minimizes electromagnetic interference in dense circuit layouts
• AEC-Q200 Grade 3 qualification ensures suitability for harsh automotive environments
• Ferrite core material provides stable performance across specified temperature ranges

Fixed Inductors Applications

• Automotive DC-DC converters
• LCD backlight drivers
• General purpose power filtering in automotive electronics

Fixed Inductors Procurement Notes

Verify the specific ordering suffix to confirm termination plating options. Standard suffixes indicate RoHS-compliant matte tin over nickel, while special order suffixes may denote tin-silver-copper or non-RoHS variants. Confirm that the selected variant aligns with project compliance requirements before procurement.

Fixed Inductors Selection Notes

Select this component when high inductance values are required in a compact SMD footprint for automotive circuits. Consider the saturation characteristics and DC resistance limits relative to the target load current. Ensure the thermal environment remains within the qualified -40°C to +85°C range for optimal longevity.

Fixed Inductors Part Context

This part belongs to the MSS1278 series of shielded surface-mount power inductors manufactured by Coilcraft. The series offers a wide range of inductance values tailored for power supply applications. Components in this family share similar physical dimensions and core materials, differing primarily in electrical specifications and tolerance levels.

Fixed Inductors Replacement Considerations

Direct substitutes within the same series include MSS1278-104MLB (100 uH) and MSS1278-105KLB (1 mH, different tolerance). Verify that alternative part numbers match the required inductance, current ratings, and AEC-Q200 qualification status.