
Yageo
Premium Thin Film upgrade with closer resistance (430Ω), tighter tolerance (±0.1%), and much better TCR (±25ppm/°C).
Finding a substitute for the 0603WAF4220T5E, a 422Ω 1% 0.1W 0603 thick film resistor, involves balancing resistance value against other parameters. Alternatives exist with slight resistance deviations or as high-precision upgrades.
Resistance value differs in all candidates, requiring circuit analysis.
All candidates share the same 0603 package, ensuring physical compatibility.
No exact drop-in replacement with 422Ω resistance was found in this batch. All candidates require review for resistance deviation or technology differences.
For precision-critical circuits, consider Thin Film upgrades like Yageo's RT0603 series. For general use, other 1% 0603 resistors near 422Ω are viable options.
The primary risk is the resistance deviation. A change of several percent can impact circuit performance, especially in sensitive analog applications.

Yageo
Premium Thin Film upgrade with closer resistance (430Ω), tighter tolerance (±0.1%), and much better TCR (±25ppm/°C).
| Feature / factor | 0603WAF4220T5E | RT0603BRD07430RL | RT0603BRE07430RL | 0603WAF4020T5E | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Package size matches.; RT0603BRE07430RL: Package size matches.; 0603WAF4020T5E: Package size matches.; 0603WAF4420T5E: Package size matches. |
| Resistance | 422.0 Ω | 430.0 Ω | 430.0 Ω | 402.0 Ω | 430.0 Ω / 402.0 Ω / 442.0 Ω — Resistance is 1.9% higher, but very close.; RT0603BRE07430RL: Resistance is 1.9% higher, but very close.; 0603WAF4020T5E: Resistance is 4.7% lower.; 0603WAF4420T5E: Resistance is 4.7% higher. |
| Tolerance | ±1.0% | ±0.1% | ±0.1% | ±1.0% | ±0.1% / ±1.0% — Significantly improved precision.; RT0603BRE07430RL: Significantly improved precision.; 0603WAF4020T5E: Tolerance matches.; 0603WAF4420T5E: Tolerance matches. |
| Technology | Thick Film | Thin Film | Thin Film | - | Thin Film — Different technology may affect pulse handling.; RT0603BRE07430RL: Different technology may affect pulse handling. |
| Tcr | ±100 ppm/°C | ±25 ppm/°C | ±50 ppm/°C | missing | ±25 ppm/°C / ±50 ppm/°C / missing — Significantly improved temperature stability.; RT0603BRE07430RL: Improved temperature stability.; 0603WAF4020T5E: TCR is missing in one source but likely matches. |
| Power | 0.1 W | 0.1 W | - | - | 0.1 W — Power rating matches. Note: one data source showed 1W, likely an error.; 0603WAF4420T5E: Power rating matches. |
The best alternative depends on your application. For high precision, Yageo RT0603BRD07430RL is an upgrade. For general use, UNI-ROYAL 0603WAF4020T5E from the same series is a close option, but with a 402Ω resistance.