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Best Alternatives to LR2512D-3W-5mR-1%

Package: 2512Shenzhen Milliohm Electronics Co., Ltd.Specialized ResistorsResistance: 5mΩPower Rating: 3WTolerance: ±1%TCR: ≤25-50ppm/°C

Find pin-compatible and functional alternatives for the Milliohm LR2512D-3W-5mR-1% 3W, 5mΩ current sense resistor. Review key parameters like TCR and power rating before substitution.

AI replacement insight

Electrical riskmedium

TCR mismatch is the main electrical risk. Some candidates have higher or unknown TCR.

Package risklow

All candidates use the same 2512 package, but minor dimensional variances are possible.

Can it be replaced directly?

Direct replacement for LR2512D-3W-5mR-1% should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Use pin-to-pin candidates from Milliohm (HoXGS/HoLR series) or TAI-TECH (RLP25 series) after verifying TCR and thermal performance in the datasheet.

Main risk

The primary risk is substituting with a part having a higher Temperature Coefficient (TCR), which can reduce circuit accuracy over temperature.

Recommended alternatives

4
HoLR2512-5mR-1% package
Needs validationlow risk

This Milliohm resistor is nearly identical in part number and specs, making it a top replacement candidate.

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Alternative comparison matrix

Feature / factorLR2512D-3W-5mR-1%HoLR2512-5mR-1%HoXGS2512-5mR-1%RLP25FEGR005Compatibility / risk
Package25122512251225122512 — Form factor matches.; HoXGS2512-5mR-1%: Form factor matches.; RLP25FEGR005: Form factor matches.; ASR-K-3-5F: Form factor matches.
Power3.0W3.0W3.0W3.0W3.0W — Power rating matches.; HoXGS2512-5mR-1%: Power rating matches.; RLP25FEGR005: Power rating matches.; ASR-K-3-5F: Power rating matches.
Resistance5mΩ5mΩ5mΩ5mΩ5mΩ — Resistance value matches.; HoXGS2512-5mR-1%: Resistance value matches.; RLP25FEGR005: Resistance value matches.; ASR-K-3-5F: Resistance value matches.
Tcr≤50ppm/°C±50ppm/°C±50ppm/°C±50ppm/℃±50ppm/°C / ±50ppm/℃ / ±70ppm/℃ — TCR is within target spec.; HoXGS2512-5mR-1%: TCR is within target spec.; RLP25FEGR005: TCR is within target spec.; ASR-K-3-5F: TCR is higher than target, may affect precision.
Tolerance±1%--±1%±1% — Tolerance matches.

Application & sourcing insights

Questions & answers

Verified drop-in options for LR2512D-3W-5mR-1% 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.