What risks should I check before replacing FRC0603F91R0TS?

Always verify the substitute's datasheet for precise dimensions, operating temperature range, and any special characteristics like pulse handling or anti-sulfur properties that may be critical for your design.

FRC0603F91R0TS Alternatives, Datasheet & Cross Reference | FOJAN

Find and compare replacements for the FRC0603F91R0TS, a 91Ω 1% 0.1W 0603 chip resistor. Review pin-compatible alternatives from Yageo, FH, and other manufacturers.

AI replacement insight

Electrical risklow

Key parameters match on top candidates. Secondary parameters like voltage rating should be verified.

Package risklow

All candidates use the standard 0603 package, but datasheet should be checked for dimensional tolerances.

Sourcing risklow

Candidates are from major manufacturers (Yageo, FH), suggesting good availability.

Can it be replaced directly?

Direct replacement for FRC0603F91R0TS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

RC0603FR-0791RL from Yageo is a strong candidate, matching all key electrical and physical parameters.

Main risk

The main risk is ensuring the substitute's secondary characteristics, like pulse withstanding capability and precise terminal dimensions, match the application's needs.

Recommended alternatives

Yageo part with matching package, resistance, tolerance, and power rating. A strong pin-to-pin candidate.

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Alternative comparison matrix

Feature / factor	FRC0603F91R0TS	RC0603FR-0791RL	RS-03K91R0FT	0603WAF909JT5E	Compatibility / risk
Package	0603	0603	0603	0603	0603 — Same EIA package size.; RS-03K91R0FT: Same EIA package size.; 0603WAF909JT5E: Same EIA package size.
Resistance	91.0 Ω	91.0 Ω	91.0 Ω	90.9 Ω	91.0 Ω / 90.9 Ω — Identical nominal resistance.; RS-03K91R0FT: Identical nominal resistance.; 0603WAF909JT5E: Slight deviation from target's nominal value.
Tolerance	1.0 %	1.0 %	1.0 %	1.0 %	1.0 % — Identical tolerance.; RS-03K91R0FT: Identical tolerance.; 0603WAF909JT5E: Identical tolerance.
Power	0.1 W	0.1 W	0.1 W	0.1 W	0.1 W — Identical power rating.; RS-03K91R0FT: Identical power rating.; 0603WAF909JT5E: Identical power rating.
Tcr	±100 ppm/°C	±100 ppm/°C	±100ppm/℃	Not specified	±100 ppm/°C / ±100ppm/℃ / Not specified — Matching temperature coefficient.; RS-03K91R0FT: Matching temperature coefficient.; 0603WAF909JT5E: TCR data missing for candidate.

Application & sourcing insights

Questions & answers

Verified drop-in options for FRC0603F91R0TS are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.