Is there a pin-compatible replacement for FRC0402J433 TS?

Yes, both AC0402FR-0743KL and FRC0402F4322TS are pin-compatible replacements. They share the same 0402 package, power rating, and have equal or better tolerance.

What risks should I check before replacing FRC0402J433 TS?

Before replacing, verify that any change in tolerance (e.g., from ±5% to ±1%) is acceptable. If considering a thin film alternative like RT0402BRD0743KL, review its impact on circuit performance, such as noise and pulse handling.

FRC0402J433 TS Alternatives, Datasheet & Cross Reference | FOJAN

FRC0402J433 TS is a general-purpose 43kΩ, 5%, 1/16W resistor in an 0402 package. Several pin-compatible alternatives with improved tolerance are available from manufacturers like Yageo and FOJAN.

AI replacement insight

Electrical risklow

Several options match or exceed key electrical specs. Risk is low if sticking to thick film parts.

Package risklow

All suitable candidates are in the same 0402 package, ensuring physical compatibility.

Sourcing riskmedium

The target is a general-purpose resistor; many cross-vendor alternatives exist, but availability can vary.

Can it be replaced directly?

Yes, AC0402FR-0743KL and FRC0402F4322TS are strong candidates for direct replacement, offering better tolerance in the same package.

Best replacement path

The best replacement path is AC0402FR-0743KL, which matches all critical parameters and offers upgraded tolerance and automotive qualification.

Main risk

The main risk is selecting a part with a different technology (thin film vs. thick film) without engineering review, as this can affect circuit performance.

Recommended alternatives

Yageo AC0402FR-0743KL is a pin-compatible upgrade with tighter tolerance (±1%) and AEC-Q200 qualification.

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Alternative comparison matrix

Feature / factor	FRC0402J433 TS	AC0402FR-0743KL	FRC0402F4322TS	RT0402BRD0743KL	Compatibility / risk
Resistance	43kΩ	43kΩ	43.2kΩ	43kΩ	43kΩ / 43.2kΩ — Exact resistance match.; FRC0402F4322TS: Value is within target's ±5% tolerance.; RT0402BRD0743KL: Exact resistance match.
Tolerance	±5%	±1%	±1%	±0.1%	±1% / ±0.1% — Tighter tolerance is a direct upgrade.; FRC0402F4322TS: Tighter tolerance is a direct upgrade.; RT0402BRD0743KL: Significant upgrade to high precision.
Power	1/16W	1/16W	1/16W	-	1/16W — Power rating is identical.; FRC0402F4322TS: Power rating is identical.
Package	0402	0402	0402	0402	0402 — Package size is identical.; FRC0402F4322TS: Package size is identical.; RT0402BRD0743KL: Package size is identical.
Application	General Purpose	AEC-Q200	-	-	AEC-Q200 — Candidate is automotive qualified, an upgrade.
Technology	Thick Film	-	-	Thin Film	Thin Film — Technology change may affect performance (e.g., noise, pulse handling).
Tcr	±100 ppm/°C (est.)	-	-	25 ppm/°C	25 ppm/°C — Significant upgrade in temperature stability.

Application & sourcing insights

Questions & answers

The best alternative is AC0402FR-0743KL from Yageo. It is a pin-compatible 43kΩ resistor with an upgraded ±1% tolerance and AEC-Q200 automotive qualification.