Is there a pin-compatible replacement for RL12FTNR200?

Yes, HoLRT1206-1W-200mR-1% and HoYH1206-1W-200mR-1% are pin-compatible replacements in the same 1206 package. They are upgrades with higher power ratings and better temperature coefficients.

What risks should I check before replacing RL12FTNR200?

The main risk is package mismatch. Some alternatives like RLP25FEER200 are electrically suitable but come in a larger 2512 package, requiring a PCB redesign. For pin-compatible parts, ensure the upgraded power/TCR specs are acceptable for your design.

RL12FTNR200 Alternatives, Datasheet & Cross Reference | TAI-TECH

RL12FTNR200 is a 0.5W, 200mΩ current sense resistor in a 1206 package with ±1% tolerance. Several pin-compatible upgrades and functional alternatives with superior electrical characteristics are available.

AI replacement insight

Electrical risklow

Upgraded power and TCR are generally safe, but should be verified in sensitive circuits.

Package riskmedium

Several functional alternates exist in different packages (2512), requiring board redesign.

Sourcing risklow

Multiple vendors offer similar 1206 current sense resistors, providing good availability.

Can it be replaced directly?

Yes, there are several pin-compatible upgrades available for RL12FTNR200, such as Milliohm's HoLRT1206 and HoYH1206 series, which offer improved power and TCR ratings.

Best replacement path

The best replacement path is an upgrade to a pin-compatible part like HoLRT1206-1W-200mR-1%, which offers higher power handling and better temperature stability in the same 1206 package.

Main risk

The main risk is selecting a part with a different package size (e.g., 2512), which would require a PCB layout change and is not a drop-in replacement.

Recommended alternatives

A pin-compatible upgrade with double the power rating and 4x better temperature stability (TCR).

View details

Alternative comparison matrix

Feature / factor	RL12FTNR200	HoLRT1206-1W-200mR-1%	HoYH1206-1W-200mR-1%	RLP25FEER200	Compatibility / risk
Package	1206	1206	-	-	2512 — Larger package requires PCB layout change.
Power	0.5W	1.0W	-	-	2.0W — Significantly higher power rating.
Tcr	±200ppm/℃	±50ppm/℃	-	-	±50 ppm/℃ — Significantly better temperature stability.
Resistance	0.2Ω	0.2Ω	-	-	0.2Ω — matched
Tolerance	±1%	±1%	-	-	±1% — matched

Application & sourcing insights

Questions & answers

The best alternative is likely HoLRT1206-1W-200mR-1%. It matches the 1206 package, resistance, and tolerance while offering double the power rating and a significantly better TCR of ±50ppm/℃.