What risks should I check before replacing FRC0402F4123TS?

When substituting, verify the resistance value, tolerance, power rating, and temperature coefficient (TCR). Even with identical nominal values, ensure the replacement's performance over temperature and voltage meets your circuit's design margins.

FRC0402F4123TS Alternatives, Datasheet & Cross Reference | FOJAN

FRC0402F4123TS is a 412kΩ, ±1% tolerance, 1/16W thick film chip resistor in a standard 0402 package. This page provides analysis of potential alternatives, including pin-compatible options and parametric variants.

AI replacement insight

Electrical risklow

For the pin-to-pin match, risk is low. For parametric alternates, resistance changes require circuit analysis.

Package risklow

All suggested candidates are in the same 0402 package, minimizing layout and assembly risk.

Sourcing risklow

This is a common resistor value and package, with multiple vendors available.

Can it be replaced directly?

Direct replacement for FRC0402F4123TS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

The best path is to use 0402WGF4123TCE, which matches all key parameters. For flexibility, several other parts with slightly different resistance values are also available.

Main risk

The main risk is substituting with a part of a different resistance value without verifying the impact on circuit performance.

Recommended alternatives

A strong pin-compatible alternative with identical resistance, tolerance, and package.

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Alternative comparison matrix

Feature / factor	FRC0402F4123TS	0402WGF4123TCE	RC-02K4023FT	Compatibility / risk
Resistance	412kΩ	412kΩ	402kΩ	412kΩ / 402kΩ — Resistance values are identical.; RC-02K4023FT: Resistance is 2.4% lower, but may be within application tolerance.
Tolerance	±1%	±1%	±1%	±1% — Tolerance ratings are identical.; RC-02K4023FT: Tolerance ratings are identical.
Power	1/16W	1/16W	1/16W	1/16W — Power ratings are identical.; RC-02K4023FT: Power ratings are identical.
Package	0402	0402	0402	0402 — Package dimensions are identical.; RC-02K4023FT: Package dimensions are identical.
Tcr	±100 ppm/°C	Not in catalog	-	Not in catalog — Candidate TCR is missing from catalog data but datasheet shows match (±100 ppm/°C).

Application & sourcing insights

Questions & answers

Verified drop-in options for FRC0402F4123TS 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.