Is there a pin-compatible replacement for FRC1206F3903TS?

Yes, 1206W4F3903T5E is a pin-compatible replacement. Other parts like RT1206BRD07390KL are also pin-compatible but are considered upgrades with different technology that require review.

What risks should I check before replacing FRC1206F3903TS?

Before replacing, verify the substitute's resistance tolerance (e.g., ±1% vs ±5%), resistance value (e.g., 390kΩ vs 360kΩ), and technology (Thick Film vs. Thin Film), as these can impact circuit performance and reliability.

FRC1206F3903TS Alternatives, Datasheet & Cross Reference | FOJAN

FRC1206F3903TS is a general-purpose 390kΩ, 1% tolerance, 0.25W resistor in a 1206 package. Several alternatives exist, including direct pin-compatible options and others with parametric differences that require review.

AI replacement insight

Electrical riskmedium

Candidates exist with different resistance, tolerance, and technology, requiring careful selection.

Package risklow

Most viable alternatives share the same 1206 package, ensuring form-fit compatibility.

Can it be replaced directly?

Yes, 1206W4F3903T5E from UNI ROYAL is a direct pin-to-pin replacement for FRC1206F3903TS, matching the 1206 package, 390kΩ resistance, ±1% tolerance, and 0.25W power rating.

Best replacement path

For a direct replacement, use 1206W4F3903T5E, which matches all key parameters. For higher precision, consider RT1206BRD07390KL after verifying technology suitability.

Main risk

The main risk is selecting a part with incorrect tolerance, resistance value, or technology (Thick vs. Thin Film), which can affect circuit performance and reliability.

Recommended alternatives

UNI ROYAL 1206W4F3903T5E is a strong pin-to-pin match with identical key electrical parameters and package.

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Alternative comparison matrix

Feature / factor	FRC1206F3903TS	1206W4F3903T5E	RT1206BRD07390KL	1206W4J0394T5E	Compatibility / risk
Package	1206	1206	1206	1206	1206 — Identical package size.; RT1206BRD07390KL: Identical package size.; 1206W4J0394T5E: Identical package size.
Resistance	390kΩ	390kΩ	-	-	390kΩ — Identical resistance value.
Tolerance	±1%	±1%	±0.1%	±5%	±1% / ±0.1% / ±5% — Identical resistance tolerance.; RT1206BRD07390KL: Tighter tolerance may improve precision.; 1206W4J0394T5E: Wider tolerance may not be suitable for precision circuits.
Power	0.25W	0.25W	-	0.25W	0.25W — Identical power rating.; 1206W4J0394T5E: Identical power rating.
Tcr	±100 ppm/°C	±100 ppm/°C	25 ppm/°C	-	±100 ppm/°C / 25 ppm/°C — Identical temperature coefficient.; RT1206BRD07390KL: Lower TCR provides better stability over temperature.
Technology	Thick Film	-	Thin Film	-	Thin Film — Different resistor technology; check pulse handling.

Application & sourcing insights

Questions & answers

The best alternative is 1206W4F3903T5E by UNI ROYAL. It is a pin-to-pin replacement with identical key specifications including resistance, tolerance, power rating, and package size.