
FOJAN
A direct pin-compatible replacement with matching 3.9kΩ resistance, 5% tolerance, and 0.25W power rating.
Find reliable substitutes for the UNI-ROYAL 1206W4J0392T5E, a 3.9kΩ, 5%, 0.25W thick film resistor in a 1206 package. Explore pin-compatible and upgraded tolerance options.
Low risk if key parameters (resistance, power, tolerance) are matched or improved.
1206 is a standard SMT package with excellent cross-compatibility.
Check stock and lead times for chosen alternatives as availability can vary.
Direct replacement for 1206W4J0392T5E should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
For a direct replacement, consider the FRC1206J392 TS which matches all key specifications. For an upgrade, parts like RC1206FR-073K9L offer a tighter 1% tolerance.
The main risk when substituting is selecting a part with a different resistance value or technology (e.g., thin film) without verifying circuit impact.

FOJAN
A direct pin-compatible replacement with matching 3.9kΩ resistance, 5% tolerance, and 0.25W power rating.
| Feature / factor | 1206W4J0392T5E | FRC1206J392 TS | FRC1206F3901TS | RC1206FR-073K9L | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 3.9 kΩ | 3.9 kΩ | 3.9 kΩ | 3.9 kΩ | 3.9 kΩ — Nominal resistance matches.; FRC1206F3901TS: Nominal resistance matches.; RC1206FR-073K9L: Nominal resistance matches. |
| Tolerance | ±5% | ±5% | ±1% | ±1% | ±5% / ±1% / ±0.1% — Tolerance matches.; FRC1206F3901TS: Candidate has tighter tolerance, which is an upgrade.; RC1206FR-073K9L: Candidate has tighter tolerance, which is an upgrade.; RT1206BRD073K9L: Significantly tighter tolerance. |
| Power | 0.25 W | 0.25 W | 0.25 W | 0.25 W | 0.25 W — Power rating matches.; FRC1206F3901TS: Power rating matches.; RC1206FR-073K9L: Power rating matches. |
| Package | 1206 | 1206 | 1206 (3216 Metric) | 1206 | 1206 / 1206 (3216 Metric) — Package size matches for drop-in compatibility.; FRC1206F3901TS: Package size matches for drop-in compatibility.; RC1206FR-073K9L: Package size matches for drop-in compatibility.; RT1206BRD073K9L: Package size matches. |
| Technology | Thick Film | - | - | Thick Film | Thick Film / Thin Film — Resistor technology matches.; RT1206BRD073K9L: Different technology may affect noise and pulse handling. |
| Temperature | -55°C to +155°C | - | - | - | -55°C to +125°C — Candidate has a narrower operating temperature range. |
Verified drop-in options for 1206W4J0392T5E are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.