
FOJAN
A parametrically identical 1.24kΩ 1% 0.1W resistor in the same 0603 package.
Find direct and alternative replacements for the UNI-ROYAL 0603WAF1241T5E, a 1.24kΩ 1% 0.1W 0603 chip resistor. Review key parametric differences before substitution.
Most alternatives have different resistance values, requiring circuit validation.
All candidates share the same 0603 package, ensuring physical compatibility.
Yes, FRC0603F1241TS is a parametrically identical replacement for 0603WAF1241T5E, sharing the same resistance, tolerance, power, and package.
FRC0603F1241TS by FOJAN offers an identical parametric profile and is the strongest candidate.
The primary risk is substituting with a part that has a different resistance value, which could alter circuit behavior.

FOJAN
A parametrically identical 1.24kΩ 1% 0.1W resistor in the same 0603 package.
| Feature / factor | 0603WAF1241T5E | FRC0603F1241TS | FRC0603F1131TS | FRC0603F1151TS | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 1.24 kΩ | 1.24 kΩ | 1.13 kΩ | 1.15 kΩ | 1.24 kΩ / 1.13 kΩ / 1.15 kΩ / 1.3 kΩ — Resistance matches target.; FRC0603F1131TS: Resistance is ~9% lower than target. Circuit tolerance must be verified.; FRC0603F1151TS: Resistance is ~7% lower than target. Circuit tolerance must be verified.; FRC0603F1301TS: Resistance is ~5% higher than target. Circuit tolerance should be verified. |
| Tolerance | ±1% | ±1% | ±1% | ±1% | ±1% — Tolerance matches target.; FRC0603F1131TS: Tolerance matches target.; FRC0603F1151TS: Tolerance matches target.; FRC0603F1301TS: Tolerance matches target. |
| Power | 0.1 W | 0.1 W | 0.1 W | 0.1 W | 0.1 W — Power rating matches target.; FRC0603F1131TS: Power rating matches target.; FRC0603F1151TS: Power rating matches target (assuming data correction from 1W).; FRC0603F1301TS: Power rating matches target. |
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Package size matches.; FRC0603F1131TS: Package size matches.; FRC0603F1151TS: Package size matches.; FRC0603F1301TS: Package size matches. |
| Tcr | ±100 ppm/°C | ±100 ppm/°C | - | - | ±100 ppm/°C — Temperature coefficient matches. |
Verified drop-in options for 0603WAF1241T5E 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.