What risks should I check before replacing FRC0402J303 TS?

Key risks include resistance value deviation, Temperature Coefficient (TCR) degradation, and technology differences (Thick vs. Thin Film). Always verify the substitute's resistance and TCR meet your circuit's requirements, especially in precision or temperature-sensitive applications.

FRC0402J303 TS Alternatives, Datasheet & Cross Reference | FOJAN

FRC0402J303 TS is a general-purpose 30kΩ 5% 0402 thick film resistor. Several alternatives are available, including pin-compatible upgrades with tighter tolerance and parametric options that require engineering review.

AI replacement insight

Electrical riskmedium

Some candidates have different resistance, TCR, or technology. Verify against application needs.

Package risklow

All reviewed candidates use the same 0402 package, ensuring physical compatibility.

Can it be replaced directly?

Direct replacement for FRC0402J303 TS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

FRC0402F3012TS is the strongest candidate, offering a tighter tolerance from the same manufacturer with a nearly identical resistance value.

Main risk

The main risk when substituting is selecting a part with a different resistance value or a weaker Temperature Coefficient (TCR), which can impact circuit performance.

Recommended alternatives

A strong pin-to-pin match from the same manufacturer with a tighter tolerance (±1%) and nearly identical resistance (30.1kΩ).

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Alternative comparison matrix

Feature / factor	FRC0402J303 TS	FRC0402F3012TS	RT0402BRE0730KL	RC0402JR-0730KL	Compatibility / risk
Package	0402	0402	0402	0402	0402 — Matches target package.; RT0402BRE0730KL: Matches target package.; RC0402JR-0730KL: Matches target package.
Resistance	30 kΩ	30.1 kΩ	30 kΩ	30 kΩ	30.1 kΩ / 30 kΩ — Negligible 0.33% difference, well within target tolerance.; RT0402BRE0730KL: Matches target resistance.; RC0402JR-0730KL: Matches target resistance.
Tolerance	±5%	±1%	±0.1%	±5%	±1% / ±0.1% / ±5% — Tighter tolerance than target.; RT0402BRE0730KL: Tighter tolerance than target.; RC0402JR-0730KL: Matches target tolerance.
Tcr	±100 ppm/°C	±100 ppm/°C	50 ppm/°C	±200 ppm/°C	±100 ppm/°C / 50 ppm/°C / ±200 ppm/°C — Matches target TCR.; RT0402BRE0730KL: Better temperature stability.; RC0402JR-0730KL: Worse temperature stability than target.
Manufacturer	FOJAN	FOJAN	-	-	FOJAN — Same manufacturer as target.
Technology	Thick Film	-	Thin Film	-	Thin Film — Different film technology, may affect pulse handling.

Application & sourcing insights

Questions & answers

Verified drop-in options for FRC0402J303 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.