Is there a pin-compatible replacement for RLM12FTCMR050?

No direct pin-for-pin replacements have been identified that meet all critical parameters, including the required power safety margin. All viable alternatives require a PCB layout change.

What risks should I check before replacing RLM12FTCMR050?

The primary risk is mechanical. All functional alternatives are in a larger 2512 package, requiring a PCB redesign. Also, check if the higher power dissipation affects thermal management.

RLM12FTCMR050 Alternatives, Datasheet & Cross Reference | TAI-TECH

Find functional alternatives for the TAI-TECH RLM12FTCMR050, a 1W, 50mΩ, 1206 current sense resistor. Review candidates with different packages but higher power ratings for your application.

AI replacement insight

Package riskhigh

All viable alternatives are in a larger 2512 package, requiring a new PCB layout.

Electrical risklow

Key electrical parameters match or exceed the target, providing better performance.

Can it be replaced directly?

No direct, drop-in replacement has been verified. The primary blocker is finding a 1206 part with at least 1.5W power rating and matching resistance.

Best replacement path

Use a functional alternative like RLP25FEGR050, which requires a board layout change to accommodate the larger 2512 package.

Main risk

Package mismatch requiring PCB redesign.

Recommended alternatives

Functional alternative with higher power rating (3W) but in a larger 2512 package.

View details

Alternative comparison matrix

Feature / factor	RLM12FTCMR050	RLP25FEGR050	HoJLR2512-3W-50mR-1%	Compatibility / risk
Package	1206	2512	-	2512 — Requires PCB layout change.
Power	1.0W	3.0W	-	3.0W — Higher power rating provides more margin.
Resistance	50mΩ	50mΩ	-	50mΩ — matched
Tolerance	±1%	±1%	-	±1% — matched
Tcr	±50ppm/℃	±50 ppm/℃	-	±50 ppm/℃ — matched
Technology	Metal Foil	-	Metal Alloy	Metal Alloy — May affect pulse withstanding or long-term stability.

Application & sourcing insights

Questions & answers

RLP25FEGR050 from the same manufacturer, TAI-TECH, offers matching electrical specs with a higher 3W power rating, but requires a larger 2512 footprint.