
Yageo
A very close match in package and tolerance, but with a slightly weaker TCR that requires review for precision applications.
RT0603BRB073KL is a precision 0603 thin-film resistor from Yageo with 3kΩ resistance, ±0.1% tolerance, and a tight 10 ppm/°C TCR. Finding a direct drop-in requires matching these precision characteristics.
Substitutes may have weaker TCR or wider tolerance, affecting circuit precision.
All viable candidates use the same 0603 package, ensuring physical compatibility.
No perfect direct replacement was found. The closest candidates have weaker Temperature Coefficients (TCR) or different resistance values, requiring engineering review.
The closest option is another Yageo RT series part, RT0603BRD073K01L, but its TCR is weaker, requiring review.
The primary risk is performance degradation due to a weaker Temperature Coefficient (TCR) or wider resistance tolerance in substitutes.

Yageo
A very close match in package and tolerance, but with a slightly weaker TCR that requires review for precision applications.
| Feature / factor | RT0603BRB073KL | RT0603BRD073K01L | RT0603BRD072K7L | RC0603JR-073KL | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Package size matches.; RT0603BRD072K7L: Package size matches.; RC0603JR-073KL: Package size matches. |
| Resistance | 3 kΩ | 3.01 kΩ | 2.7 kΩ | 3 kΩ | 3.01 kΩ / 2.7 kΩ / 3 kΩ — Very close resistance value, within 0.34%.; RT0603BRD072K7L: Resistance is 10% lower.; RC0603JR-073KL: Nominal resistance matches. |
| Tcr | 10 ppm/°C | 25 ppm/°C | 25 ppm/°C | - | 25 ppm/°C — TCR is weaker, may affect stability.; RT0603BRD072K7L: TCR is weaker. |
| Tolerance | ±0.1% | ±0.1% | ±0.1% | ±5% | ±0.1% / ±5% — Precision tolerance matches.; RT0603BRD072K7L: Precision tolerance matches.; RC0603JR-073KL: Tolerance is 50x wider. |
| Technology | Thin Film | Thin Film | - | Thick Film | Thin Film / Thick Film — Technology matches.; RC0603JR-073KL: General purpose vs precision technology. |
RT0603BRD073K01L is a very close alternative with a slightly different resistance (3.01kΩ) and a weaker TCR (25 ppm/°C). For non-critical applications, general-purpose 3kΩ 0603 resistors exist but have much wider tolerances.