Is there a pin-compatible replacement for FRC1206F3902TS?

Yes, several alternatives like FRC1206F4022TS and RC1206FR-0736KL share the same 1206 package and 2-pin layout, making them physically pin-compatible. However, their electrical parameters (resistance or tolerance) differ, so they are not drop-in replacements without engineering review.

What risks should I check before replacing FRC1206F3902TS?

Before replacing FRC1206F3902TS, you must verify the impact of any change in resistance or tolerance. A different resistance value can alter voltages, currents, or time constants in your circuit. A wider tolerance (e.g., 5% vs 1%) can reduce the precision of your design.

FRC1206F3902TS Alternatives, Datasheet & Cross Reference | FOJAN

FRC1206F3902TS is a general-purpose 39kΩ, 1% tolerance, 0.25W resistor in a 1206 package. While no exact drop-in replacements have been identified, several parametric alternatives with slight variations in resistance or tolerance are available for consideration.

AI replacement insight

Electrical riskmedium

Candidates have different resistance values or wider tolerance. Circuit analysis is required.

Package risklow

All suggested alternatives use the same 1206 package, ensuring physical compatibility.

Can it be replaced directly?

No direct, drop-in replacement was found. All identified alternatives have parametric differences in resistance or tolerance that require engineering review before substitution.

Best replacement path

FRC1206F4022TS is the closest parametric alternative, with a resistance of 40.2kΩ compared to the target's 39kΩ. This small deviation makes it the most likely candidate to work without circuit modification.

Main risk

The main risk is electrical performance deviation due to mismatched resistance or wider tolerance, which could affect circuit timing, biasing, or filtering characteristics.

Recommended alternatives

Alternative with matching resistance and package but wider tolerance (±5% vs ±1%).

View details

Alternative comparison matrix

Feature / factor	FRC1206F3902TS	FRC1206J393 TS	FRC1206F4022TS	RC1206FR-0736KL	Compatibility / risk
Resistance	39 kΩ	39 kΩ	40.2 kΩ	36 kΩ	39 kΩ / 40.2 kΩ / 36 kΩ — Resistance value matches.; FRC1206F4022TS: Resistance value is ~3% higher than target.; RC1206FR-0736KL: Resistance value is lower than target.
Tolerance	±1%	±5%	±1%	±1%	±5% / ±1% — Candidate has wider tolerance, may affect circuit precision.; FRC1206F4022TS: Tolerance matches.; RC1206FR-0736KL: Tolerance matches.
Power	0.25 W	0.25 W	0.25 W	0.25 W	0.25 W — Power rating matches.; FRC1206F4022TS: Power rating matches.; RC1206FR-0736KL: Power rating matches.
Package	1206 (3216 Metric)	1206	1206 (3216 Metric)	1206	1206 / 1206 (3216 Metric) — Package size matches for physical fit.; FRC1206F4022TS: Package size matches.; RC1206FR-0736KL: Package size matches.

Application & sourcing insights

Questions & answers

The best alternative identified is FRC1206F4022TS. It has a very close resistance value of 40.2kΩ and matches all other key specifications like tolerance (±1%), power (0.25W), and package (1206).