
Murata Electronics
Functionally similar alternative in a smaller 2016 package with comparable current rating.
Exploring alternatives for the Murata 1239AS-H-1R0M=P2, a 1.0µH, 3A power inductor in a 2520 package. This guide reviews functional alternatives with different package sizes and performance characteristics.
All viable alternatives have different footprints (3225 or 2016 vs 2520), requiring a board respin.
Candidates with similar or better electrical specs are available, but DCR and Isat must be checked.
All parts are from the same manufacturer (Murata) and are widely available.
No direct pin-compatible replacement has been identified. Alternatives require PCB layout changes due to different package sizes.
For similar performance in a smaller footprint, consider DFE201610P-1R0M=P2. For higher current handling in a larger package, DFE322512F-1R0M=P2 is a potential upgrade.
The primary risk is the package mismatch, which requires a PCB redesign. Electrical parameters like DCR and saturation current must also be verified for the specific application.

Murata Electronics
Functionally similar alternative in a smaller 2016 package with comparable current rating.
| Feature / factor | 1239AS-H-1R0M=P2 | DFE201610P-1R0M=P2 | DFE322512F-1R0M=P2 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 2520 | 2016 | 1210 (3225 metric) | 2016 / 1210 (3225 metric) — Smaller package, requires PCB redesign.; DFE322512F-1R0M=P2: Larger package, requires PCB redesign. | |
| Current | 3.0 A | 3.1 A | 4.8 A | 3.1 A / 4.8 A — Saturation current is comparable.; DFE322512F-1R0M=P2: Higher current rating offers more headroom. | |
| Dcr Ohm | 0.059 Ω | 0.07 Ω | 0.032 Ω | 0.07 Ω / 0.032 Ω — Slightly higher DCR may reduce efficiency.; DFE322512F-1R0M=P2: Lower DCR improves efficiency. | |
| Temperature | -40°C to 85°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C — Wider operating temperature range.; DFE322512F-1R0M=P2: Wider operating temperature range. |
The best alternative depends on design constraints. DFE201610P-1R0M=P2 offers similar specs in a smaller 2016 package, while DFE322512F-1R0M=P2 provides higher current capacity in a larger 3225 package.