
Yageo
A high-precision upgrade with matching resistance and package, but different resistor technology.
RC-02W511JT is a discontinued 510Ω 5% 0.0625W 0402 thick film resistor. Suitable replacements are available, including high-precision upgrades and alternatives with nearby standard resistance values.
Must verify circuit tolerance for changes in resistance or TCR.
All suggested alternatives are in the same 0402 package.
The target is a common resistor value with many available alternatives.
No perfect 1:1 replacement with identical parameters was found. The closest options have minor differences in TCR or resistance value. FRC0402J511 TS is parametrically close but has a weaker TCR.
Upgrade to a higher precision part like RT0402BRD07510RL for better stability, or select a nearby standard value like RC-02K4990FT if the circuit allows minor resistance deviation.
The main risk is selecting a replacement with a resistance value or Temperature Coefficient (TCR) that is incompatible with the circuit's design requirements.

Yageo
A high-precision upgrade with matching resistance and package, but different resistor technology.
| Feature / factor | RC-02W511JT | RT0402BRD07510RL | FRC0402J511 TS | RC-02K4990FT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 | 0402 | 0402 | 0402 | 0402 — Package size matches.; FRC0402J511 TS: Package size matches.; RC-02K4990FT: Package size matches. |
| Resistance | 510.0 Ω | 510.0 Ω | 510.0 Ω | 499.0 Ω | 510.0 Ω / 499.0 Ω — Resistance value matches.; FRC0402J511 TS: Resistance value matches.; RC-02K4990FT: Resistance is a close E96 value (~2.2% lower). |
| Tolerance | 5.0 % | 0.1 % | 5.0 % | 1.0 % | 0.1 % / 5.0 % / 1.0 % — Tighter tolerance provides higher precision.; FRC0402J511 TS: Tolerance matches.; RC-02K4990FT: Tighter tolerance. |
| Tcr | ±200ppm/℃ | 25 ppm/°C | ±400 ppm/°C | ±100ppm/℃ | 25 ppm/°C / ±400 ppm/°C / ±100ppm/℃ — Lower TCR provides better stability over temperature.; FRC0402J511 TS: Candidate has worse temperature stability.; RC-02K4990FT: Better TCR. |
| Technology | Thick Film | Thin Film | - | - | Thin Film — Different technology may affect pulse handling. |
| Power | 0.0625 W | - | 0.0625 W | - | 0.0625 W — Power rating matches. |
For a precision upgrade, Yageo's RT0402BRD07510RL offers tighter tolerance and TCR. For a close value match, Fenghua's RC-02K4990FT (499Ω) is a strong option. Always verify parameters for your specific application.