Is there a pin-compatible replacement for FRC0402F5231TS?

Yes, RT0402BRD075K23L is a pin-compatible replacement. It has the same 0402 package, 2-pin layout, and identical key electrical values like resistance and power rating, making it a strong candidate for direct substitution.

What risks should I check before replacing FRC0402F5231TS?

The main risk is a mismatch in resistance. The target has a specific 5.23kΩ value. Many available alternatives are standard values like 5.1kΩ. You must verify that your circuit can tolerate this deviation. For the best alternative, the technology changes from thick to thin film, which could affect behavior in high-pulse applications.

FRC0402F5231TS Alternatives, Datasheet & Cross Reference | FOJAN

FRC0402F5231TS is a general-purpose 0402 thick film chip resistor from FOJAN, featuring a 5.23kΩ resistance, ±1% tolerance, and a 1/16W power rating. Finding a suitable replacement requires careful attention to the specific resistance value.

AI replacement insight

Electrical riskmedium

Most alternatives have different resistance values. Using a part with a value like 5.1kΩ or 5.62kΩ could alter circuit behavior.

Package risklow

The 0402 package is a widely available industry standard, so finding a form-fit compatible part is easy.

Sourcing risklow

The target part and many alternatives are from major manufacturers and are actively produced.

Can it be replaced directly?

Yes, a direct replacement exists. RT0402BRD075K23L from Yageo matches the 5.23kΩ resistance, 1/16W power, and 0402 package, while providing superior performance.

Best replacement path

The best alternative is RT0402BRD075K23L, which is a direct upgrade offering the same resistance with much higher precision (±0.1% tolerance, 25ppm/°C TCR).

Main risk

The primary risk when substituting FRC0402F5231TS is finding a part with the exact 5.23kΩ resistance. Many alternatives use more common values like 5.1kΩ, which requires circuit analysis to confirm compatibility.

Recommended alternatives

A pin-compatible upgrade with identical resistance but significantly better tolerance and temperature stability.

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Alternative comparison matrix

Feature / factor	FRC0402F5231TS	RT0402BRD075K23L	RT0402BRD075K1L	RT0402DRE075K1L	Compatibility / risk
Resistance	5.23 kΩ	5.23 kΩ	5.1 kΩ	5.1 kΩ	5.23 kΩ / 5.1 kΩ — Exact resistance match.; RT0402BRD075K1L: -2.49% deviation from target. Verify circuit sensitivity.; RT0402DRE075K1L: -2.49% deviation from target. Verify circuit sensitivity.
Tolerance	±1%	±0.1%	±0.1%	±0.5%	±0.1% / ±0.5% — Candidate has tighter tolerance.; RT0402BRD075K1L: Candidate has much tighter tolerance.; RT0402DRE075K1L: Candidate has tighter tolerance.
Tcr	±100 ppm/°C	25 ppm/°C	25 ppm/°C	50 ppm/°C	25 ppm/°C / 50 ppm/°C — Candidate has a much better temperature coefficient.; RT0402BRD075K1L: Candidate has much better temperature stability.; RT0402DRE075K1L: Candidate has better temperature stability.
Technology	Thick Film	Thin Film	-	-	Thin Film — Different technology may affect pulse handling; generally an upgrade.
Package	0402	0402	0402	0402	0402 — Standard 0402 package ensures form-fit compatibility.; RT0402BRD075K1L: Standard 0402 package ensures form-fit compatibility.; RT0402DRE075K1L: Standard 0402 package ensures form-fit compatibility.

Application & sourcing insights

Questions & answers

The best alternative is RT0402BRD075K23L by Yageo. It matches the 5.23kΩ resistance and 0402 package, while offering significantly better tolerance (±0.1%) and temperature stability (25 ppm/°C).