Is there a pin-compatible replacement for SRN3015-100M?

No direct pin-for-pin replacements have been identified among the reviewed candidates. All options have different package dimensions, requiring PCB layout verification or modification.

What risks should I check before replacing SRN3015-100M?

Key risks include package mismatch requiring layout changes, higher DC Resistance (DCR) which can lower efficiency, and differences in saturation current (Isat) which affects performance under load.

SRN3015-100M Alternatives, Datasheet & Cross Reference | BOURNS

Bourns SRN3015-100M is a 10µH semi-shielded power inductor in a compact 3.0x3.0mm package. This page reviews potential alternatives, focusing on electrical performance and package compatibility for DC/DC converter applications.

AI replacement insight

Package riskhigh

No drop-in replacement found; all candidates require layout changes.

Electrical riskmedium

Candidates have varying DCR and current ratings that must be verified for the application.

Can it be replaced directly?

No direct drop-in replacement has been identified. All candidates require design review, primarily for different package footprints and variations in DC Resistance (DCR).

Best replacement path

Upgrade to Bourns SRP4020TA-100M for higher current handling if board space allows for a larger 4.0x4.0mm package.

Main risk

Package incompatibility is the primary risk, as no alternatives share the exact 3.0x3.0mm footprint. A secondary risk is increased DCR in some options, which impacts efficiency.

Recommended alternatives

A functional alternative with higher current ratings but in a larger 4020 package, requiring PCB layout modification.

View details

Alternative comparison matrix

Feature / factor	SRN3015-100M	SRP4020TA-100M	DFE322512F-100M=P2	1239AS-H-100M=P2	Compatibility / risk
Current	1.0 A	1.8 A	1.1 A	1.0 A	1.8 A / 1.1 A / 1.0 A — Higher RMS current handling.; DFE322512F-100M=P2: Slightly higher RMS current.; 1239AS-H-100M=P2: Matching RMS current.
Saturation Current A	0.88 A	2.3 A	1.7 A	0.9 A	2.3 A / 1.7 A / 0.9 A — Significantly higher saturation current.; DFE322512F-100M=P2: Higher saturation current.; 1239AS-H-100M=P2: Matching saturation current.
Dcr Ohm	0.276 Ω	0.243 Ω	0.324 Ω	0.46 Ω	0.243 Ω / 0.324 Ω / 0.46 Ω — Lower DCR improves efficiency.; DFE322512F-100M=P2: Higher DCR may reduce efficiency.; 1239AS-H-100M=P2: Higher DCR may reduce efficiency.
Package	3.0 mm x 3.0 mm	4020 (4.0x4.0mm)	1210 (3.2x2.5mm)	2520 (2.5x2.0mm)	4020 (4.0x4.0mm) / 1210 (3.2x2.5mm) / 2520 (2.5x2.0mm) — Not a drop-in replacement.; DFE322512F-100M=P2: Different footprint, check layout.; 1239AS-H-100M=P2: Smaller package, requires layout change.

Application & sourcing insights

Questions & answers

Bourns SRP4020TA-100M offers superior current ratings (1.8A Irms, 2.3A Isat) but requires a larger 4.0x4.0mm footprint. For similar performance, check functional alternatives, but always verify package and DCR.