
FOJAN
A pin-compatible 43Ω, 1% resistor in a 1206 package with identical power and TCR ratings.
Finding a substitute for the 1206W4F430JT5E, a 43Ω 1% 0.25W 1206 resistor, involves matching key electrical parameters. We've identified direct and parametric alternatives to aid your sourcing.
Many alternatives have different resistance or weaker tolerance/TCR.
All candidates use the standard 1206 package.
This is a common resistor value and package, with many vendors.
Yes, FRC1206F43R0TS is a direct pin-to-pin replacement for the 1206W4F430JT5E, offering the same resistance, tolerance, power, and package.
The best path is a pin-compatible part like FRC1206F43R0TS, which matches all key specs. If unavailable, consider parametric alternatives but verify resistance and tolerance.
The main risk when substituting is using a part with incorrect resistance or a wider tolerance (e.g., 5% instead of 1%), which can affect circuit precision.

FOJAN
A pin-compatible 43Ω, 1% resistor in a 1206 package with identical power and TCR ratings.
| Feature / factor | 1206W4F430JT5E | FRC1206F43R0TS | RS-06K39R0FT | RS-06K47R0FT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 1206 | 1206 | 1206 | 1206 | 1206 — Identical package ensures form and fit.; RS-06K39R0FT: Package is a match.; RS-06K47R0FT: Package is a match. |
| Resistance | 43.0 Ω | 43.0 Ω | 39.0 Ω | 47.0 Ω | 43.0 Ω / 39.0 Ω / 47.0 Ω — Resistance value is an exact match.; RS-06K39R0FT: Resistance is -9.3% lower than target.; RS-06K47R0FT: Resistance is +9.3% higher than target.; RC1206JR-0747RL: Resistance is +9.3% higher. |
| Tolerance | 1.0 % | 1.0 % | 1.0 % | 1.0 % | 1.0 % / 5.0 % — Precision matches the target's ±1% tolerance.; RS-06K39R0FT: Tolerance is a match.; RS-06K47R0FT: Tolerance is a match.; RC1206JR-0747RL: Tolerance is weaker than target's ±1%. |
| Power | 0.25 W | 0.25 W | 0.25 W | 0.25 W | 0.25 W — Power rating is identical.; RS-06K39R0FT: Power rating is a match.; RS-06K47R0FT: Power rating is a match.; RC1206JR-0747RL: Power rating is a match. |
| Tcr | ±100 ppm/°C | ±100 ppm/°C | - | - | ±100 ppm/°C — Temperature coefficient is an exact match. |
The best alternative found is FRC1206F43R0TS from FOJAN. It is a pin-compatible match with identical resistance, tolerance, power rating, and package size.