
A strong alternative with matching package footprint and inductance, offering higher current ratings.
APH0420T100M is a 10µH shielded power inductor in a compact 4.4x4.2mm SMD package. Strong alternatives like XR0420-100M exist with matching footprints and improved current ratings.
Candidates have matching or very similar footprints, but height and land pattern must be verified.
Candidates offer superior or equal electrical performance, reducing risk.
Direct replacement for APH0420T100M should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
XR0420-100M offers the most direct replacement path, matching the package footprint and providing improved current handling.
The primary risk is ensuring PCB land pattern compatibility, as even identically sized packages can have minor variations in pad recommendations.

A strong alternative with matching package footprint and inductance, offering higher current ratings.
| Feature / factor | APH0420T100M | XR0420-100M | SMS0420-100MT | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SMD, 4.4x4.2x1.8mm | 0420 (4.4x4.2x2.0mm) | 0420 (4.6x4.2mm) | 0420 (4.4x4.2x2.0mm) / 0420 (4.6x4.2mm) — Footprint matches, height is 0.2mm greater. Verify clearance.; SMS0420-100MT: Nominal size is very close, verify tolerances and land pattern. | |
| Inductance | 10 uH | 10 µH | 10 µH | 10 µH — matched; SMS0420-100MT: matched | |
| Saturation Current | 1.66 A | 2.0 A | 2.0 A | 2.0 A — Candidate has higher saturation current.; SMS0420-100MT: Candidate has higher saturation current. | |
| Rms Current | 1.35 A | 1.6 A | 1.6 A | 1.6 A — Candidate has higher RMS current rating.; SMS0420-100MT: Candidate has higher RMS current rating. | |
| Dcr | 282 mΩ | 282 mΩ | 220 mΩ (typ) | 282 mΩ / 220 mΩ (typ) — DC resistance is identical.; SMS0420-100MT: Lower DCR improves efficiency. | |
| Temperature | -40°C to +125°C | -55°C to +125°C | - | -55°C to +125°C — Wider operating temperature range. |
Verified drop-in options for APH0420T100M are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.