What risks should I check before replacing FRC0402J104 TS?

Key risks include package mismatch, which affects PCB layout, and parametric differences. Ensure the replacement's resistance, tolerance, power rating, and temperature coefficient (TCR) are within your circuit's design limits. Technology differences (e.g., Thick vs. Thin Film) can also affect performance in sensitive applications.

FRC0402J104 TS Alternatives, Datasheet & Cross Reference | FOJAN

Finding a replacement for the FOJAN FRC0402J104 TS, a 100kΩ 5% 0402 chip resistor, involves matching key electrical parameters and package size. Several alternatives exist with varying degrees of compatibility.

AI replacement insight

Electrical risklow

Low for close matches like 0402WGJ0104TCE. Medium for parametric alternatives which require circuit analysis.

Package risklow

Low for candidates matching the 0402 size. Rejected candidates had high package risk.

Sourcing risklow

Low, as 100kΩ 0402 resistors are a common commodity part from multiple vendors.

Can it be replaced directly?

Direct replacement for FRC0402J104 TS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

The most direct path is 0402WGJ0104TCE, which is parametrically very close. For improved performance, RT0402BRD07100KL offers a significant upgrade in precision.

Main risk

The main risks are ensuring the replacement fits the 0402 footprint and that its electrical characteristics, especially resistance and tolerance, are acceptable for the specific circuit function.

Recommended alternatives

An upgrade path with higher precision (0.1% tol, 25ppm TCR) but different (Thin Film) technology.

View details

Alternative comparison matrix

Feature / factor	FRC0402J104 TS	RT0402BRD07100KL	0402WGJ0104TCE	Compatibility / risk
Package	0402	0402	-	0402 — Package size matches.
Resistance	100kΩ	100kΩ	-	100kΩ — Resistance value matches.
Tolerance	±5%	±0.1%	-	±5% — Tolerance matches.
Tcr	±100 ppm/°C	25 ppm/°C	-	Not Specified — TCR not found in candidate data. Target is ±100 ppm/°C.
Technology	Thick Film	Thin Film	-	Thick Film — Resistor technology matches.
Power	1/16 W	-	1/16 W	1/16 W — Power rating matches.

Application & sourcing insights

Questions & answers

Verified drop-in options for FRC0402J104 TS 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.