0603WAJ051JT5E
UNI-ROYAL
Needs validationmedium risk
A 5.1Ω, 5% tolerance, 0.1W resistor in a 0603 package with an improved TCR. Power rating requires review.
Best Alternatives to FRC0603J5R1 TS
Find and compare alternatives for the FOJAN FRC0603J5R1 TS, a 5.1Ω 5% 0.1W 0603 chip resistor. This guide provides direct matches, parametric alternatives, and performance upgrades.
AI replacement insight
Electrical risklow
Verify resistance deviation and power dissipation for any chosen substitute.
Package risklow
All suggested candidates use the same 0603 package, ensuring form-fit compatibility.
Can it be replaced directly?
Yes, 0603WAJ051JT5E by UNI-ROYAL is a strong candidate with matching core specifications, but power dissipation must be verified.
Best replacement path
For a direct match, use 0603WAJ051JT5E. For a performance upgrade, FRC0603F4R99TS offers much better tolerance and TCR.
Main risk
The main risk is ensuring the replacement's nominal resistance is within the circuit's tolerance and that power dissipation is safely below the 0.1W rating.
Recommended alternatives
6Alternative comparison matrix
| Feature / factor | FRC0603J5R1 TS | 0603WAJ051JT5E | RS-03L5R1JT | FRC0603F4R99TS | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Package size matches.; RS-03L5R1JT: Package size matches.; FRC0603F4R99TS: Package size matches.; RC0603FR-074R99L: Package size matches. |
| Resistance | 5.1Ω | 5.1Ω | 5.1Ω | 4.99Ω | 5.1Ω / 4.99Ω — Nominal resistance matches.; RS-03L5R1JT: Nominal resistance matches.; FRC0603F4R99TS: Resistance is very close to target.; RC0603FR-074R99L: Resistance is very close to target. |
| Tolerance | ±5% | ±5% | ±5% | ±1% | ±5% / ±1% — Resistance tolerance matches.; RS-03L5R1JT: Resistance tolerance matches.; FRC0603F4R99TS: Tolerance is tighter than target.; RC0603FR-074R99L: Tolerance is tighter than target. |
| Power | 0.1W | 0.1W | 0.1W | 0.1W | 0.1W — Power rating matches but does not meet 1.5x safety margin rule.; RS-03L5R1JT: Power rating matches but does not meet 1.5x safety margin rule.; FRC0603F4R99TS: Power rating matches but does not meet 1.5x safety margin rule.; RC0603FR-074R99L: Power rating matches but does not meet 1.5x safety margin rule. |
| Tcr | ±400ppm/°C | ≤±200ppm/°C | ±250ppm/℃ | ±100ppm/°C | ≤±200ppm/°C / ±250ppm/℃ / ±100ppm/°C — Temperature coefficient is better.; RS-03L5R1JT: Temperature coefficient is better.; FRC0603F4R99TS: Temperature coefficient is significantly better.; RC0603FR-074R99L: Temperature coefficient is better. |
Application & sourcing insights
Questions & answers
The best alternative depends on your needs. For a direct match, consider 0603WAJ051JT5E. For a high-performance upgrade with tighter tolerance and better stability, FRC0603F4R99TS is an excellent choice.