
Sunltech
Functional alternative with superior electrical performance but in a much larger package.
Finding a replacement for the DMBJ CXP0420-100M-AG(10UH) 10µH inductor requires careful review of package size and electrical ratings. While many alternatives offer superior current handling, they often come in different packages requiring a board redesign.
All candidates have a different footprint and require a board redesign.
All candidates offer superior current ratings and lower DCR.
No direct pin-compatible replacement was found among the candidates reviewed. All have different package sizes requiring a PCB redesign.
Search for a 10µH inductor in a 0420 (4x4mm) package with Isat ≥ 2.0A and Irms ≥ 1.5A for a potential drop-in replacement.
The primary risk is the package mismatch. All reviewed candidates are physically larger and will not fit on the existing PCB footprint.

Sunltech
Functional alternative with superior electrical performance but in a much larger package.
| Feature / factor | CXP0420-100M-AG(10UH) | SLO1040H100MTT | SMDRI127-100MT | SMMS1350-100M | Compatibility / risk |
|---|---|---|---|---|---|
| Inductance | 10uH | 10uH | 10uH | 10uH | 10uH — Inductance matches target.; SMDRI127-100MT: Inductance matches target.; SMMS1350-100M: Inductance matches target.; SMMS1770-100M: Inductance matches target. |
| Package | 0420 (4x4mm) | 10.3mm x 10.0mm | 12.3mm x 12.3mm | 1350 (13.8x12.6mm) | 10.3mm x 10.0mm / 12.3mm x 12.3mm / 1350 (13.8x12.6mm) / 1770 (17.15x17.15mm) — Candidate package is significantly larger, requires PCB redesign.; SMDRI127-100MT: Candidate package is significantly larger, requires PCB redesign.; SMMS1350-100M: Candidate package is significantly larger, requires PCB redesign.; SMMS1770-100M: Candidate package is vastly larger, requires PCB redesign. |
| Saturation Current A | 2.0A | 8.5A | 9.0A | 12.0A | 8.5A / 9.0A / 12.0A / 25.0A — Significantly higher saturation current.; SMDRI127-100MT: Significantly higher saturation current.; SMMS1350-100M: Significantly higher saturation current.; SMMS1770-100M: Significantly higher saturation current. |
| Current A | 1.5A | 5.5A | 5.4A | 8.0A | 5.5A / 5.4A / 8.0A / 16.5A — Significantly higher RMS current rating.; SMDRI127-100MT: Significantly higher RMS current rating.; SMMS1350-100M: Significantly higher RMS current rating.; SMMS1770-100M: Significantly higher RMS current rating. |
The best alternative depends on whether a PCB redesign is possible. Electrically superior options like TAI-TECH's TMPA1265SP-100MN-D exist, but they are in much larger packages. For a drop-in replacement, an inductor in a 4x4mm (0420) package with similar or better electrical ratings is required.