Is there a pin-compatible replacement for PK0810-680MB?

Currently, no pin-compatible, through-hole replacements have been verified. All reviewed alternatives with matching electricals use a different, surface-mount (SMD) package.

What risks should I check before replacing PK0810-680MB?

The main risk is mechanical; you must verify if your PCB can be redesigned for an SMD inductor. Also check saturation current requirements, as this was not specified for the original part.

PK0810-680MB Alternatives, Datasheet & Cross Reference | SXN

PK0810-680MB is a 68µH through-hole power inductor. While no direct replacements are identified, functional alternatives with superior electricals are available if an SMD package can be used.

AI replacement insight

Package riskhigh

Requires changing from Through-Hole to SMD, which necessitates a board redesign.

Electrical risklow

Identified alternatives meet or exceed the key electrical parameters of the target part.

Can it be replaced directly?

No, there are no direct pin-for-pin replacements for PK0810-680MB. All suitable electrical alternatives require changing from a through-hole to a surface-mount package.

Best replacement path

If a board redesign to an SMD footprint is possible, FCH1365-680M is a strong upgrade with higher current handling.

Main risk

The primary risk is the package mismatch. All viable alternatives are SMD, requiring a PCB layout change.

Recommended alternatives

Electrically superior alternative with higher current and lower DCR, but in an SMD package.

View details

Alternative comparison matrix

Feature / factor	PK0810-680MB	FCH1365-680M	PID120L-650M	Compatibility / risk
Package	Radial, Through Hole	SMD, 13.7mm x 12.8mm	Nonstandard (SMD)	SMD, 13.7mm x 12.8mm / Nonstandard (SMD) — Requires board redesign.; PID120L-650M: Requires board redesign.
Inductance	68µH	68µH	65µH	68µH / 65µH — Inductance value matches.; PID120L-650M: Close match, within target's ±20% tolerance.
Current	1.2A	4.5A	1.28A	4.5A / 1.28A — Significantly higher current rating.; PID120L-650M: Slightly higher current rating.
Dcr	180mΩ	103mΩ	180mΩ (from datasheet)	103mΩ / 180mΩ (from datasheet) — Lower DCR improves efficiency.; PID120L-650M: Matches target DCR.
Shielding	Unshielded	Shielded	-	Shielded — Offers better EMI performance.

Application & sourcing insights

Questions & answers

If your design can switch to an SMD package, FCH1365-680M offers significantly higher current handling. PID120L-650M is another strong SMD option with very similar electricals.