RLP25FEGR100
TAI-TECH
Needs validationmedium risk
A 2512 resistor with same resistance but lower power rating and higher TCR, requiring design validation.
Best Alternatives to VMS-R100-1.0-U
Finding a substitute for the VMS-R100-1.0-U requires careful review of power rating and temperature coefficient. While several 2512, 0.1-ohm resistors exist, they typically offer lower performance and require engineering validation.
AI replacement insight
Electrical riskhigh
Candidates have 25% less power handling and a higher TCR, risking thermal failure and measurement inaccuracy.
Package risklow
All viable candidates match the 2512 package, ensuring physical compatibility.
Can it be replaced directly?
No direct drop-in replacement has been identified. All candidates have a lower power rating (3W vs 4W) and a worse temperature coefficient, requiring engineering validation.
Best replacement path
The TAI-TECH RLP25FEGR100 is a strong candidate if the 3W power rating is acceptable, as it shares the AEC-Q200 qualification.
Main risk
The primary risk is overheating and failure due to the lower 3W power rating compared to the target's 4W.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | VMS-R100-1.0-U | RLP25FEGR100 | LR123WF100LT4E | LR123WF400NT4E | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 2512 (6432 Metric) | 2512 | 2512 | 2512 | 2512 — Form factor matches.; LR123WF100LT4E: Form factor matches.; LR123WF400NT4E: Form factor matches.; HoLLR2512-3W-100mR-1%: Form factor matches. |
| Resistance | 0.1 Ω | 0.1 Ω | - | - | 0.1 Ω — Resistance matches. |
| Power | 4.0 W | 3.0 W | 3.0 W | 3.0 W | 3.0 W — Lower power rating requires derating analysis.; LR123WF100LT4E: Lower power rating requires derating analysis.; LR123WF400NT4E: Lower power rating requires derating analysis.; HoLLR2512-3W-100mR-1%: Lower power rating requires derating analysis. |
| Tcr | <20 ppm/K | ±50 ppm/℃ | ±50 PPM/°C | ±50 PPM/°C | ±50 ppm/℃ / ±50 PPM/°C / ±50ppm/°C — Higher TCR impacts precision over temperature.; LR123WF100LT4E: Higher TCR impacts precision over temperature.; LR123WF400NT4E: Higher TCR impacts precision over temperature.; HoLLR2512-3W-100mR-1%: Higher TCR impacts precision over temperature. |
| Qualification | AEC-Q200 | AEC-Q200 | AEC-Q200 | AEC-Q200 | AEC-Q200 / Not specified — Automotive qualification matches.; LR123WF100LT4E: Automotive qualification matches.; LR123WF400NT4E: Automotive qualification matches.; HoLLR2512-3W-100mR-1%: AEC-Q200 qualification is missing. |
| Technology | Metal Foil | - | - | - | Metal Alloy — Different resistor technology. |
Application & sourcing insights
Questions & answers
The best alternative depends on your design's flexibility. Parts like TAI-TECH's RLP25FEGR100 match the package and resistance but have a lower 3W power rating and higher TCR. Thoroughly review your circuit's power dissipation and precision needs before substituting.