HoYLR2512-2W-2mR-1%
Milliohm
Needs validationmedium risk
A pin-compatible alternative from Milliohm with matching key electrical specifications.
Best Alternatives to RLM25FEER002
Find and compare verified alternatives for the TAI-TECH RLM25FEER002 current sense resistor. This page provides detailed analysis of pin-compatible replacements, upgrade paths, and parametric alternatives to help you make an informed decision.
AI replacement insight
Electrical riskmedium
TCR and operating temperature must be verified. A weaker TCR (e.g., ±70ppm/°C) can reduce measurement accuracy.
Package risklow
All candidates use the standard 2512 package, ensuring form and fit compatibility.
Sourcing risklow
Multiple vendors offer compatible parts, improving supply chain resilience.
Can it be replaced directly?
Direct replacement for RLM25FEER002 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
PEWF2512F2L00Q9 from RESI is the best upgrade, offering a 5W power rating while matching all other key specs. For a direct match, HoYLR2512-2W-2mR-1% from Milliohm is a strong pin-to-pin candidate.
Main risk
The primary risks involve mismatched Temperature Coefficient of Resistance (TCR) and operating temperature range. Some alternatives have weaker TCR or lower max temperature, which can impact circuit precision and reliability.
Recommended alternatives
6Alternative comparison matrix
| Feature / factor | RLM25FEER002 | HoYLR2512-2W-2mR-1% | LR2512-22R002F4 | PEWF2512F2L00Q9 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 2512 | 2512 | 2512 | 2512 | 2512 — Form factor matches.; LR2512-22R002F4: Form factor matches.; PEWF2512F2L00Q9: Form factor matches.; FRM252WFR002TN: Form factor matches. |
| Resistance | 0.002 Ω | 0.002 Ω | 0.002 Ω | 0.002 Ω | 0.002 Ω — Resistance matches.; LR2512-22R002F4: Resistance matches.; PEWF2512F2L00Q9: Resistance matches. |
| Power | 2.0 W | 2.0 W | 2.0 W | 5.0 W | 2.0 W / 5.0 W — Power rating matches.; LR2512-22R002F4: Power rating matches.; PEWF2512F2L00Q9: Higher power rating provides more design margin.; FRM252WFR002TN: Power rating matches. |
| Tolerance | ±1.0% | ±1.0% | - | - | ±1.0% — Tolerance matches. |
| Tcr | ±50ppm/℃ | ±50ppm/°C | ≤±50ppm/°C | ±50 ppm/°C | ±50ppm/°C / ≤±50ppm/°C / ±50 ppm/°C — Temperature coefficient matches.; LR2512-22R002F4: TCR matches target spec (verified from datasheet).; PEWF2512F2L00Q9: Temperature coefficient matches.; FRM252WFR002TN: TCR matches target spec (verified from datasheet). |
| Application | AEC-Q200 | - | - | AEC-Q200 | AEC-Q200 — Also AEC-Q200 qualified. |
| Temperature | -55℃ to +170℃ | - | - | - | -55°C to 155°C — Lower max operating temp than target's +170°C. |
Application & sourcing insights
Questions & answers
Verified drop-in options for RLM25FEER002 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.