
FOJAN
Same-series upgrade with tighter ±1% tolerance, matching all other key specifications.
Find direct replacements for the FOJAN FRC1206J512 TS, a 5.1kΩ 5% 0.25W 1206 chip resistor. This guide provides verified substitutes and engineering analysis for your design.
Low if tolerance and TCR are matched or improved. Medium if TCR is unknown.
Low for candidates with the same 1206 package.
Direct replacement for FRC1206J512 TS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Use FRC1206F5101TS for a same-series upgrade to ±1% tolerance, or 1206W4F5101T5E for a cross-vendor equivalent with the same upgrade.
The main risk is using a part with an unverified temperature coefficient (TCR), which can affect circuit precision in sensitive applications.

FOJAN
Same-series upgrade with tighter ±1% tolerance, matching all other key specifications.
| Feature / factor | FRC1206J512 TS | FRC1206F5101TS | 1206W4F5101T5E | 1206W4J0512T5E | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 1206 | 1206 | - | - | 1206 — Identical package ensures form and fit. |
| Tolerance | ±5% | ±1% | - | - | ±5% — Tolerance is identical. |
| Power | 0.25 W | 0.25 W | - | - | 0.25 W — Power rating is identical. |
| Tcr | ±100 ppm/°C | ±100 ppm/°C | - | - | Not specified — TCR is missing from data and must be verified. |
Verified drop-in options for FRC1206J512 TS 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.