HoLLR2512-3W-1mR-1%
Milliohm
Needs validationlow risk
A 3W, 1mΩ, 1% resistor in a 2512 package with matching key electrical parameters.
Best Alternatives to ECSR2512FR001K9
ECSR2512FR001K9 is a 3W, 1mΩ current sense resistor in a standard 2512 package. This page reviews and compares potential alternatives for your design.
AI replacement insight
Electrical risklow
Key electrical parameters match or are improved.
Package risklow
Standard 2512 package is used by all viable alternatives.
Sourcing risklow
This is a common resistor value and package with multiple vendors.
Can it be replaced directly?
Direct replacement for ECSR2512FR001K9 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Use TAI-TECH RLP25FEGR001 for an upgrade in TCR or Milliohm HoLLR2512-3W-1mR-1% for a direct parametric match.
Main risk
The primary risk is minimal, related to minor physical or thermal differences between manufacturers. Verification of the land pattern is recommended.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | ECSR2512FR001K9 | HoLLR2512-3W-1mR-1% | RLP25FEGR001 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 2512 | 2512 | 2512 | 2512 — Package size matches.; RLP25FEGR001: Package size matches. | |
| Power | 3.0 W | 3.0 W | 3.0 W | 3.0 W — Power rating matches.; RLP25FEGR001: Power rating matches. | |
| Resistance | 0.001 Ω | 0.001 Ω | 0.001 Ω | 0.001 Ω — Resistance value matches.; RLP25FEGR001: Resistance value matches. | |
| Tolerance | ±1.0% | ±1.0% | ±1.0% | ±1.0% — Tolerance matches.; RLP25FEGR001: Tolerance matches. | |
| Tcr | ±100 ppm/℃ | ≤100ppm/°C | ±50 ppm/℃ | ≤100ppm/°C / ±50 ppm/℃ — Temperature coefficient matches.; RLP25FEGR001: Candidate has a better (lower) TCR. |
Application & sourcing insights
Questions & answers
Verified drop-in options for ECSR2512FR001K9 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.