Is there a pin-compatible replacement for STE1206M1W0R120F?

HoLRT1206-1W-130mR-1% shares the 1206 package but its resistance is 130mΩ, an 8.3% deviation from the target's 120mΩ. This difference requires engineering review to ensure it is acceptable for your application.

What risks should I check before replacing STE1206M1W0R120F?

Key risks include package size mismatch, requiring PCB redesign, and resistance deviation, which can affect current sensing accuracy. Also, ensure the substitute's power rating and temperature coefficient (TCR) meet your circuit's requirements.

STE1206M1W0R120F Alternatives, Datasheet & Cross Reference | Suzhou Walter Electronic Co., Ltd.

Find alternatives for the STE1206M1W0R120F, a 1W, 120mΩ, 1% current sense resistor in a 1206 package. This guide reviews potential substitutes, highlighting key parametric and package differences.

AI replacement insight

Package riskhigh

One strong electrical match is in a different package (2512), requiring a board spin.

Electrical riskmedium

The closest form-fit match has an 8.3% higher resistance, which could impact circuit performance.

Sourcing risklow

Multiple manufacturers produce similar current sense resistors, but exact value/package combinations vary.

Can it be replaced directly?

No, a direct, 1-to-1 replacement for STE1206M1W0R120F with identical key parameters was not identified in this review.

Best replacement path

Evaluate HoLRT1206-1W-130mR-1% if your design can tolerate an 8.3% resistance increase. If not, a board redesign for a part like HoYLR2512-3W-120mR-1% may be necessary.

Main risk

The primary risk is finding a part that is both a form-fit (1206 package) and function (120mΩ, 1W, 1%) match. Available options require a compromise on either package size or resistance value.

Recommended alternatives

A functional alternative with matching electricals but a larger 2512 package.

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Alternative comparison matrix

Feature / factor	STE1206M1W0R120F	HoYLR2512-3W-120mR-1%	HoLRT1206-1W-130mR-1%	Compatibility / risk
Package	1206	2512	1206	2512 / 1206 — Requires PCB redesign.; HoLRT1206-1W-130mR-1%: Package is a form-fit match.
Power	1.0W	3.0W	1.0W	3.0W / 1.0W — Higher power rating provides more margin.; HoLRT1206-1W-130mR-1%: Matches, but provides no extra safety margin.
Resistance	0.12Ω	0.12Ω	0.13Ω	0.12Ω / 0.13Ω — Resistance value matches.; HoLRT1206-1W-130mR-1%: 8.3% higher resistance, requires validation.
Tolerance	±1%	±1%	-	±1% — Tolerance matches.
Tcr	±50 ppm/℃	±50ppm/℃	Not specified	±50ppm/℃ / Not specified — TCR matches.; HoLRT1206-1W-130mR-1%: Candidate TCR not found in provided data.

Application & sourcing insights

Questions & answers

No direct drop-in replacement was found. HoLRT1206-1W-130mR-1% is a close parametric match in the same package but has a slightly higher resistance. HoYLR2512-3W-120mR-1% is electrically identical but requires a larger PCB footprint (2512).