VMS-R100-1.0-U
Isabellenhuette USA
Needs validationlow risk
A high-performance upgrade in the same 2512 package with 4W power rating and much lower TCR.
Best Alternatives to WSL2512R1000FEA
WSL2512R1000FEA is a 1W, 100mΩ, 1% tolerance current sense resistor in a 2512 package. Key alternatives include performance upgrades and parametric matches that require review of operating temperature.
AI replacement insight
Electrical risklow
Most candidates meet or exceed key electrical specs like power and TCR.
Package risklow
All reviewed candidates are in the same 2512 package.
Sourcing riskmedium
Availability and cost of high-performance upgrades may vary by region.
Can it be replaced directly?
Direct replacement for WSL2512R1000FEA should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Upgrade to VMS-R100-1.0-U for higher power and precision, or use LR2512-2AR100F4 as a strong option after verifying temperature requirements.
Main risk
Operating temperature range mismatch is the primary risk, as several candidates have a narrower range than the Vishay target part.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | WSL2512R1000FEA | VMS-R100-1.0-U | LR2512-2AR100F4 | LR123WF100LT4E | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 2512 | 2512 | 2512 | 2512 | 2512 — Form factor matches.; LR2512-2AR100F4: Form factor matches.; LR123WF100LT4E: Form factor matches.; LR123WF400NT4E: Form factor matches. |
| Power | 1.0 W | 4.0 W | 1.5 W | 3.0 W | 4.0 W / 1.5 W / 3.0 W — Significantly higher power handling.; LR2512-2AR100F4: Higher power rating provides more margin.; LR123WF100LT4E: Significantly higher power rating.; LR123WF400NT4E: Significantly higher power rating. |
| Tcr | ±75 ppm/°C | <20 ppm/°C | ≤±50 ppm/°C | ±50 ppm/°C | <20 ppm/°C / ≤±50 ppm/°C — Superior temperature stability.; LR2512-2AR100F4: Better temperature stability.; LR123WF100LT4E: Better temperature stability.; LR123WF400NT4E: Better temperature stability. |
| Temperature | -65°C to +170°C | -65°C to +170°C | -55°C to +170°C | -55°C to +155°C | -65°C to +170°C / -55°C to +170°C / -55°C to +155°C — Operating temperature range matches.; LR2512-2AR100F4: Slightly narrower range at low end.; LR123WF100LT4E: Significantly narrower temperature range.; LR123WF400NT4E: Significantly narrower temperature range. |
| Technology | Metal Strip | Metal Foil | - | - | Metal Foil — Premium technology with excellent stability. |
Application & sourcing insights
Questions & answers
Verified drop-in options for WSL2512R1000FEA 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.