
UNI-ROYAL
A 1206 5.1kΩ 1% resistor with the same power rating, but requires verification of power dissipation due to safety margin rules.
The FOJAN FRC1206F5101TS is a general-purpose 1206 thick film chip resistor with 5.1kΩ resistance, ±1% tolerance, and a 0.25W power rating. Finding a suitable replacement requires careful attention to power dissipation and tolerance.
Power rating does not meet 1.5x safety margin. Tolerance may be weaker.
Kept candidates match the 1206 package.
No direct drop-in replacement has been identified that meets all engineering safety margins. The closest options require review.
Consider parametrically similar parts like UNI-ROYAL's 1206W4F5101T5E, but verify power dissipation.
The primary risk is insufficient power handling if the application runs close to the 0.25W rating, as substitutes may not meet the 1.5x safety factor.

UNI-ROYAL
A 1206 5.1kΩ 1% resistor with the same power rating, but requires verification of power dissipation due to safety margin rules.
| Feature / factor | FRC1206F5101TS | 1206W4F5101T5E | 1206W4J0512T5E | FRC1206J512 TS | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 1206 | 1206 | - | - | 1206 — Same package and pin count. |
| Resistance | 5.1 kΩ | 5.1 kΩ | - | - | 5.1 kΩ — Resistance matches. |
| Tolerance | ±1% | ±1% | - | - | ±5% — Tolerance is weaker. |
| Power | 0.25 W | 0.25 W | - | - | 0.25 W — Fails 1.5x power safety rule (ER-RES-003). |
UNI-ROYAL 1206W4F5101T5E is a strong candidate, matching package, resistance, and tolerance. However, its power rating requires application-specific verification.