Is there a pin-compatible replacement for FXC1040-100M?

No pin-compatible replacement has been verified. While other parts in the FXC1040 series share the same package, they have different inductance values and are not suitable substitutes.

What risks should I check before replacing FXC1040-100M?

The primary risk is mechanical incompatibility; check the package dimensions and PCB layout. Also verify that the saturation current (Isat) and RMS current (Irms) of the replacement meet or exceed the original's 12A and 7.5A ratings.

FXC1040-100M Alternatives, Datasheet & Cross Reference | Shenzhen CJiang Technology Co., Ltd.

FXC1040-100M is a 10µH power inductor for DC/DC converters. Alternatives exist with similar electrical specs, but may require board layout changes due to different package sizes.

AI replacement insight

Package riskhigh

All suitable electrical alternatives are in larger packages, requiring a board redesign.

Electrical risklow

Identified alternatives meet or exceed key electrical specifications.

Can it be replaced directly?

No direct drop-in replacement was found. All viable candidates have different physical packages, requiring a PCB layout change.

Best replacement path

Use XR1265-100M for an electrical upgrade, but this requires a board respin for the larger package.

Main risk

Package mismatch is the main risk, preventing a drop-in replacement.

Recommended alternatives

A functional alternative with similar or better electricals, but in a larger physical package.

View details

Alternative comparison matrix

Feature / factor	FXC1040-100M	FXL1350-100-M	XR1265-100M	Compatibility / risk
Package	11.5x10.3x4.0mm	13.45x12.6mm	13.45x12.6mm	13.45x12.6mm — Candidate is significantly larger, requires layout change.; XR1265-100M: Candidate is significantly larger, requires layout change.
Current	7.5A	8.0A	10.0A	8.0A / 10.0A — Higher RMS current rating.; XR1265-100M: Higher RMS current rating is beneficial.
Saturation Current A	12.0A	12.0A	12.5A	12.0A / 12.5A — matched; XR1265-100M: Slightly higher saturation current.
Dcr Ohm	30mΩ	22mΩ	20.7mΩ	22mΩ / 20.7mΩ — Lower DCR improves efficiency.; XR1265-100M: Lower DCR improves efficiency.
Inductance H	10µH	10µH	10µH	10µH — matched; XR1265-100M: matched

Application & sourcing insights

Questions & answers

XR1265-100M offers superior current ratings and lower resistance, but comes in a larger package (13.5x12.6mm) requiring a PCB redesign. No direct drop-in replacement has been identified.