Is there a pin-compatible replacement for FCH1050-330M?

No, a direct pin-compatible replacement for the FCH1050-330M was not identified in this analysis. All evaluated candidates have different package dimensions that prevent a drop-in replacement.

What risks should I check before replacing FCH1050-330M?

Before replacing FCH1050-330M, you must verify the substitute's package and footprint are compatible with your PCB layout. Also, check that its current ratings (Irms and Isat) and DC Resistance (DCR) meet or exceed your application's requirements to prevent overheating or performance issues.

FCH1050-330M Alternatives, Datasheet & Cross Reference | Chiefcon Electronics Co., Ltd

Finding a substitute for the FCH1050-330M 33µH power inductor requires careful review. While several functional alternatives exist, no direct pin-compatible replacements were found, making PCB redesign a key consideration.

AI replacement insight

Package riskhigh

All candidates have different footprints than the target's 1050 package, requiring a board spin.

Electrical riskmedium

Some candidates have lower current ratings or higher DCR, which must be carefully evaluated for the specific application to avoid failure.

Can it be replaced directly?

No direct, drop-in replacement for the FCH1050-330M was found. All potential substitutes have different physical packages, preventing pin-to-pin compatibility.

Best replacement path

Use a functional alternative like SLO1365H330MTT, which offers similar or better electrical performance, but requires a PCB layout change to accommodate its different package.

Main risk

The primary risk is physical package mismatch, which necessitates a printed circuit board (PCB) redesign for any of the identified alternatives.

Recommended alternatives

A strong functional alternative with matched or better electricals, but requires a board redesign for its different package.

View details

Alternative comparison matrix

Feature / factor	FCH1050-330M	SLO1365H330MTT	SMMS1770-330M	PSPMAA1040H-330M-ANP	Compatibility / risk
Package	1050	14.4mm x 12.8mm	1770	1040H	14.4mm x 12.8mm / 1770 / 1040H — Candidate package is a different size, requires PCB redesign.; SMMS1770-330M: Candidate package is significantly larger, requires PCB redesign.; PSPMAA1040H-330M-ANP: Package dimensions differ, fit is not guaranteed.
Current	5.0A	5.0A	10.5A	4.0A	5.0A / 10.5A / 4.0A — Rated current (Irms) matches.; SMMS1770-330M: Higher rated current (Irms).; PSPMAA1040H-330M-ANP: Lower rated current (Irms) poses overheating risk.
Saturation Current A	6.0A	9.0A	20.0A	6.0A	9.0A / 20.0A / 6.0A — Higher saturation current.; SMMS1770-330M: Higher saturation current.; PSPMAA1040H-330M-ANP: Saturation current matches.
Dcr Ohm	72mΩ	48mΩ	38mΩ	120mΩ	48mΩ / 38mΩ / 120mΩ — Lower DCR improves efficiency.; SMMS1770-330M: Lower DCR improves efficiency.; PSPMAA1040H-330M-ANP: Higher DCR increases power loss.
Inductance H	33µH	33µH	33µH	-	33µH — Inductance value matches.; SMMS1770-330M: Inductance value matches.

Application & sourcing insights

Questions & answers

The best alternative depends on your design flexibility. SLO1365H330MTT offers a strong electrical match with better DCR and Isat, but requires a PCB redesign due to its different package.