Is there a pin-compatible replacement for MF1W-100Ω±1% T?

Yes, MFR02SF1000A10 is a potential pin-compatible replacement. As an axial resistor, it shares the same form factor, but you should always verify body dimensions from the datasheet.

What risks should I check before replacing MF1W-100Ω±1% T?

Ensure the replacement has a power rating of at least 1.5W. Also, verify the tolerance (±1% or better) and TCR (±100ppm/°C or better) meet your circuit's needs. Avoid SMD parts unless you are redesigning the PCB.

MF1W-100Ω±1% T Alternatives, Datasheet & Cross Reference | CCO

Find and compare alternatives for the MF1W-100Ω±1% T, a 1W 100 Ohm axial metal film resistor. Key considerations for replacement include power rating, tolerance, and temperature coefficient (TCR).

AI replacement insight

Electrical risklow

Low if specs like power, tolerance, and TCR are matched or exceeded.

Package riskhigh

High if an SMD part is chosen instead of a through-hole axial part, as it requires a PCB redesign.

Can it be replaced directly?

Yes, MFR02SF1000A10 by UNI ROYAL is a potential pin-compatible upgrade. It matches the 100Ω resistance and 1% tolerance in an axial package, with improved power and TCR ratings.

Best replacement path

The UNI ROYAL MFR02SF1000A10 is a strong upgrade, offering higher power (2W) and better TCR (±50ppm/°C) in the same axial package.

Main risk

The main risks are selecting a part with an insufficient power rating or a different package type (SMD vs. through-hole).

Recommended alternatives

A 100Ω, 1% axial resistor with higher power (2W) and better temperature stability (±50ppm/°C).

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Alternative comparison matrix

Feature / factor	MF1W-100Ω±1% T	MFR02SF1000A10	MOF5WS-100Ω±5%T	Compatibility / risk
Package	Axial	Axial	-	Axial — Same form factor.
Resistance	100 Ω	100 Ω	-	100 Ω — Identical resistance value.
Power	1 W	2 W	-	2 W — Higher power rating provides more safety margin.
Tolerance	±1%	±1%	-	±5% — Significantly looser tolerance.
Tcr	±100 PPM/°C	±50 PPM/°C	-	±700 ppm/°C — Much worse temperature stability.
Technology	Metal Film	-	Metal Oxide Film	Metal Oxide Film — Different resistor technology may affect noise/frequency performance.

Application & sourcing insights

Questions & answers

The MFR02SF1000A10 from UNI ROYAL is an excellent alternative, providing higher 2W power handling and a better ±50ppm/°C TCR in the same axial package.