LR123WF300NT4E
UNI ROYAL
Needs validationlow risk
Pin-compatible resistor with matching core parameters and improved TCR, but a slightly narrower operating temperature range.
Best Alternatives to PA2512FKF7T0R003E
Yageo's PA2512FKF7T0R003E is a 3W, 3mΩ, AEC-Q200 qualified current sense resistor in a 2512 package. Alternatives exist with similar core specs, but require checking temperature range and AEC-Q200 compliance.
AI replacement insight
Electrical risklow
Core parameters match or are better.
Package risklow
2512 package is standard.
Sourcing riskmedium
Check availability of proposed alternatives.
Can it be replaced directly?
Direct replacement for PA2512FKF7T0R003E should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
UNI ROYAL's LR123WF300NT4E is a strong candidate if the application's maximum temperature does not exceed 155°C.
Main risk
The main risks are ensuring the substitute meets the target's maximum operating temperature (170°C) and AEC-Q200 automotive qualification.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | PA2512FKF7T0R003E | LR123WF300NT4E | HoLLR2512-3W-3mR-1% | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 2512 | 2512 | 2512 | 2512 — Form factor matches.; HoLLR2512-3W-3mR-1%: Form factor matches. | |
| Power | 3.0W | 3.0W | 3.0W | 3.0W — Power rating matches.; HoLLR2512-3W-3mR-1%: Power rating matches. | |
| Resistance | 0.003Ω | 0.003Ω | 0.003Ω | 0.003Ω — Resistance matches.; HoLLR2512-3W-3mR-1%: Resistance matches. | |
| Tcr | ±100 ppm/°C | ±50 PPM/°C | ±50ppm/°C | ±50 PPM/°C / ±50ppm/°C — Candidate has better temperature stability.; HoLLR2512-3W-3mR-1%: Candidate has better temperature stability. | |
| Temperature | -55°C to +170°C | -55°C to +155°C | - | -55°C to +155°C — Candidate has a lower max operating temperature. | |
| Application | AEC-Q200 | - | Not specified | Not specified — Candidate is not AEC-Q200 qualified. |
Application & sourcing insights
Questions & answers
Verified drop-in options for PA2512FKF7T0R003E 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.