
UNI-ROYAL
1206W4F5100T5E is a close 510Ω 1206 alternative with tighter ±1% tolerance.
1206W4J0511T5E is a 510Ω ±5% 1206 thick film chip resistor. Best candidates keep 510Ω and 1206, but PDF and power-stress checks remain required.
power margin must be checked
kept parts are 1206
passive resistor
PDF checks pending
1206W4F5100T5E is the strongest listed alternative; FRC1206F5100TS is also close but cross-vendor.
Prefer 510Ω ±1% 1206 parts, then verify datasheet, voltage, temperature, and circuit power.
Equal 0.25W ratings do not meet the 1.5x power-margin rule.

UNI-ROYAL
1206W4F5100T5E is a close 510Ω 1206 alternative with tighter ±1% tolerance.
| Feature / factor | 1206W4J0511T5E | 1206W4F5100T5E | FRC1206F5100TS | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 1206 | 1206 | - | 1206 — same EIA size | |
| Pinout | 2 pins | 2 pins | - | 2 pins — chip resistor | |
| Resistance | 510Ω | 510Ω | - | 510Ω — same nominal | |
| Tolerance | ±5% | ±1% | - | ±1% — tighter | |
| Power | 0.25W | 0.25W | - | 0.25W — no 1.5x margin |
Verified drop-in options for 1206W4J0511T5E 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.