Is there a pin-compatible replacement for FXL0840-150-M?

No pin-compatible replacements with the same inductance have been verified. Other parts in the FXL0840 series have matching packages but different inductance values, making them unsuitable for most applications.

What risks should I check before replacing FXL0840-150-M?

When replacing FXL0840-150-M, the main risk is physical incompatibility. Alternatives have different package sizes, requiring a new PCB layout. Always verify the inductor's DCR and current ratings.

FXL0840-150-M Alternatives, Datasheet & Cross Reference | Shenzhen CJiang Technology Co., Ltd.

FXL0840-150-M is a 15µH power inductor in an 8.8x8.2mm package. While no direct pin-compatible replacements have been identified, several functional alternatives with superior current ratings exist in different package sizes.

AI replacement insight

Package riskhigh

All viable alternatives have a different, larger footprint, requiring PCB layout changes.

Electrical risklow

Functional alternatives offer superior or equivalent electrical performance (current, DCR).

Can it be replaced directly?

No, there are no verified direct, pin-for-pin replacements for the FXL0840-150-M with the same specifications.

Best replacement path

Use a functional alternative like FXC1040-150M and redesign the PCB layout for its larger footprint.

Main risk

Package mismatch is the primary risk, as all suitable functional alternatives are physically larger and require a board redesign.

Recommended alternatives

A functional alternative with significantly higher current ratings in a larger 11.5x10.3mm package.

View details

Alternative comparison matrix

Feature / factor	FXL0840-150-M	FXC1040-150M	FXL1360-150-M	Compatibility / risk
Package	SMD, 8.8mm x 8.2mm	11.5mm x 10.3mm x 4.0mm	SMD, 13.45mm x 12.6mm	11.5mm x 10.3mm x 4.0mm / SMD, 13.45mm x 12.6mm — Candidate is larger, requires board redesign.; FXL1360-150-M: Candidate is significantly larger, requires board redesign.
Inductance H	15µH	15µH	15µH	15µH — Inductance matches target value.; FXL1360-150-M: Inductance matches target value.
Saturation Current A	5.5A	10.0A	9.0A	10.0A / 9.0A — Significantly higher saturation current.; FXL1360-150-M: Higher saturation current provides more margin.
Current A	4.8A	6.25A	4.9A	6.25A / 4.9A — Higher RMS current rating provides thermal headroom.; FXL1360-150-M: Slightly higher RMS current rating.
Dcr Ohm	71mΩ	45mΩ	29mΩ	45mΩ / 29mΩ — Lower DCR improves efficiency.; FXL1360-150-M: Lower DCR improves efficiency.

Application & sourcing insights

Questions & answers

The best alternative depends on design flexibility. Parts like FXC1040-150M offer higher current ratings (10A Isat) but require a larger PCB footprint (11.5x10.3mm). A board redesign is necessary.