
Yageo
Strong alternative with matching package, resistance, power, and tolerance. Review wider TCR range.
RLM10FTSMR020 is a 0.5W, 20mΩ current sense resistor in an 0805 package with ±1% tolerance. Finding a substitute requires matching these key parameters for power and precision applications.
Substitutes must match power, tolerance, and TCR to ensure circuit performance and reliability.
The 0805 package is a standard size with many available options, ensuring physical compatibility.
Direct replacement for RLM10FTSMR020 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
PE0805FRE470R02Z is the strongest candidate, offering a near-perfect parametric match.
The main risk is using a part with a lower power rating or wider tolerance, which can cause component failure or inaccurate current measurement.

Yageo
Strong alternative with matching package, resistance, power, and tolerance. Review wider TCR range.
| Feature / factor | RLM10FTSMR020 | PE0805FRE470R02Z | PA0805FRE470R02L | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0805 | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) — Form factor matches.; PA0805FRE470R02L: Form factor matches. | |
| Resistance | 0.02 Ω | 0.02 Ω | 0.02 Ω | 0.02 Ω — Resistance matches.; PA0805FRE470R02L: Resistance matches. | |
| Power | 0.5 W | 0.5 W | 0.4 W | 0.5 W / 0.4 W — Power rating matches.; PA0805FRE470R02L: Lower power rating. | |
| Tolerance | ±1.0% | ±1.0% | ±1.0% | ±1.0% — Tolerance matches.; PA0805FRE470R02L: Tolerance matches. | |
| Tcr | ±50 ppm/℃ | ±50 to ±100 ppm/°C | - | ±50 to ±100 ppm/°C — Wider TCR range. |
Verified drop-in options for RLM10FTSMR020 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.