VMS-R047-1.0-U
Isabellenhütte USA
Needs validationlow risk
A strong match from the same series with a slightly lower resistance (47mΩ) and identical key parameters.
Best Alternatives to VMS-R050-1.0-U
VMS-R050-1.0-U is a 3W, 50mΩ precision current sense resistor. Finding a substitute requires careful matching of resistance, power, and especially the low temperature coefficient (TCR).
AI replacement insight
Electrical riskmedium
TCR and resistance value deviations are common in alternatives.
Package risklow
The 2512 package is a common standard.
Sourcing risklow
Multiple manufacturers produce similar parts.
Can it be replaced directly?
Direct replacement for VMS-R050-1.0-U should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
VMS-R047-1.0-U from the same family is the most direct path, requiring only validation of the 6% resistance change.
Main risk
The primary risk is a weaker Temperature Coefficient (TCR) in lower-cost alternatives, which can degrade precision in current sensing applications.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | VMS-R050-1.0-U | VMS-R047-1.0-U | PA2512FKF7T0R05E | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 50 mΩ | 47 mΩ | 50 mΩ | 47 mΩ / 50 mΩ — 6% lower than target, within 10% rule for pin-to-pin.; PA2512FKF7T0R05E: Identical resistance value. | |
| Power | 3 W | 3 W | 3 W | 3 W — Matches target, but lacks 1.5x engineering safety margin.; PA2512FKF7T0R05E: Matches target, but lacks 1.5x engineering safety margin. | |
| Tcr | < 20 ppm/K | <20 ppm/K | ±100 ppm/°C | <20 ppm/K / ±100 ppm/°C — Matches target's high precision.; PA2512FKF7T0R05E: Significantly weaker TCR may affect precision over temperature. | |
| Package | 2512 (6432 Metric) | 2512 | 2512 | 2512 — Same package and pin count.; PA2512FKF7T0R05E: Same package and pin count. | |
| Application | AEC-Q200 | - | AEC-Q200 | AEC-Q200 — Both are automotive qualified. |
Application & sourcing insights
Questions & answers
Verified drop-in options for VMS-R050-1.0-U 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.