
Yageo
Pin-compatible 1206 resistor with same resistance and power, but a weaker temperature coefficient (TCR).
Reviewing alternatives for the WALTER STE1206M1W0R100F, a 1W, 0.1Ω, 1% current sense resistor in a 1206 package. Key considerations for substitutes include matching the TCR and physical package size.
Several alternatives are in a larger 2512 package, requiring a PCB redesign.
The pin-compatible option has a worse TCR, which can affect measurement accuracy.
No direct, fully equivalent replacement was found. The closest option, PE1206FRF470R1L, has a weaker TCR and requires engineering review.
For a drop-in replacement, evaluate PE1206FRF470R1L, verifying the impact of its higher TCR. For new designs, consider a 2512 part for higher power.
The primary risk is either a physical mismatch due to a different package size or a performance degradation due to a weaker Temperature Coefficient (TCR).

Yageo
Pin-compatible 1206 resistor with same resistance and power, but a weaker temperature coefficient (TCR).
| Feature / factor | STE1206M1W0R100F | PE1206FRF470R1L | RLP25FEGR100 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 1206 | 1206 | 2512 | 1206 / 2512 — Same package and footprint.; RLP25FEGR100: Larger package requires PCB redesign. | |
| Resistance | 0.1Ω | 0.1Ω | 0.1Ω | 0.1Ω — matched; RLP25FEGR100: matched | |
| Power | 1W | 1W | 3W | 1W / 3W — matched; RLP25FEGR100: Higher power rating is an upgrade. | |
| Tcr | ±50ppm/℃ | ±100 ppm/°C | ±50 ppm/℃ | ±100 ppm/°C / ±50 ppm/℃ — Candidate has worse temperature stability.; RLP25FEGR100: matched | |
| Tolerance | ±1% | ±1% | - | ±1% — matched |
The Yageo PE1206FRF470R1L is a strong candidate in the same 1206 package, but has a higher TCR (±100ppm/°C vs ±50ppm/°C). For applications allowing a board redesign, parts like the TAI-TECH RLP25FEGR100 offer higher power in a 2512 package.