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Best Alternatives to 1239AS-H-1R0M=P2

Package: 2520Murata Manufacturing Co., Ltd.ChokesInductance: 1.0 µHTolerance: ±20%Rated Current (Isat): 3000 mARated Current (Itemp): 3000 mAMax DC Resistance: 0.059 Ω

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.

AI replacement insight

Package riskhigh

All viable alternatives have different footprints (3225 or 2016 vs 2520), requiring a board respin.

Electrical risklow

Candidates with similar or better electrical specs are available, but DCR and Isat must be checked.

Sourcing risklow

All parts are from the same manufacturer (Murata) and are widely available.

Can it be replaced directly?

No direct pin-compatible replacement has been identified. Alternatives require PCB layout changes due to different package sizes.

Best replacement path

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.

Main risk

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.

Recommended alternatives

2
DFE201610P-1R0M=P2 package
DFE201610P-1R0M=P2

Murata Electronics

Needs validationhigh risk

Functionally similar alternative in a smaller 2016 package with comparable current rating.

View details

Alternative comparison matrix

Feature / factor1239AS-H-1R0M=P2DFE201610P-1R0M=P2DFE322512F-1R0M=P2Alt 3Compatibility / risk
Package252020161210 (3225 metric)2016 / 1210 (3225 metric) — Smaller package, requires PCB redesign.; DFE322512F-1R0M=P2: Larger package, requires PCB redesign.
Current3.0 A3.1 A4.8 A3.1 A / 4.8 A — Saturation current is comparable.; DFE322512F-1R0M=P2: Higher current rating offers more headroom.
Dcr Ohm0.059 Ω0.07 Ω0.032 Ω0.07 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.

Application & sourcing insights

Questions & answers

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.