RT0603BRD071K1L
Yageo
Needs validationmedium risk
A precision resistor from the same series with a lower resistance value of 1.1kΩ.
Best Alternatives to RT0603BRD071K21L
Yageo's RT0603BRD071K21L is a 1.21 kΩ, 0.1% tolerance, 0.1W thin-film chip resistor in a 0603 package, ideal for precision applications. Finding a direct replacement requires matching its high precision and stability.
AI replacement insight
Electrical riskhigh
Substituting a lower precision part (tolerance, TCR) can cause circuit failure.
Package risklow
Many 0603 package alternatives are available.
Sourcing riskmedium
High-precision resistors can have limited availability compared to general-purpose ones.
Can it be replaced directly?
No direct, pin-to-pin replacements have been verified. Alternatives differ in resistance or have lower precision (wider tolerance and higher TCR).
Best replacement path
Use another Yageo RT series resistor, like RT0603BRD071K1L or RT0603BRD071K3L, if the circuit can tolerate a resistance change of up to 9%.
Main risk
The primary risk is substituting a lower-precision resistor, which can affect circuit accuracy and stability.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | RT0603BRD071K21L | RT0603BRD071K1L | RT0603BRD071K3L | AC0603FR-071K2L | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Package size matches.; RT0603BRD071K3L: Package size matches.; AC0603FR-071K2L: Package size matches.; FRC0603F1151TS: Package size matches. |
| Resistance | 1.21kΩ | 1.1kΩ | 1.3kΩ | 1.2kΩ | 1.1kΩ / 1.3kΩ / 1.2kΩ / 1.15kΩ — Resistance is ~9.1% lower. Requires circuit validation.; RT0603BRD071K3L: Resistance is ~7.4% higher. Requires circuit validation.; AC0603FR-071K2L: Resistance is very close (-0.8% diff).; FRC0603F1151TS: Resistance is ~5% lower. |
| Tolerance | 0.1% | 0.1% | 0.1% | 1.0% | 0.1% / 1.0% — Precision matches.; RT0603BRD071K3L: Precision matches.; AC0603FR-071K2L: Tolerance is 10x wider (lower precision).; FRC0603F1151TS: Tolerance is 10x wider (lower precision). |
| Tcr | 25 ppm/°C | 25 ppm/°C | 25 ppm/°C | ±100 ppm/°C | 25 ppm/°C / ±100 ppm/°C — Temperature coefficient matches.; RT0603BRD071K3L: Temperature coefficient matches.; AC0603FR-071K2L: TCR is 4x higher (lower stability).; FRC0603F1151TS: TCR is 4x higher (lower stability). |
| Technology | Thin Film | - | Thin Film | - | Thin Film / Thick Film — Resistor technology matches.; FRC0603F1151TS: Different technology may affect noise/stability. |
| Application | Commercial | - | - | AEC-Q200 | AEC-Q200 — Automotive qualified, target is not. |
Application & sourcing insights
Questions & answers
The closest alternatives are other Yageo RT series resistors like RT0603BRD071K1L (1.1kΩ) or RT0603BRD071K3L (1.3kΩ). They maintain the same precision but require verifying if the resistance change is acceptable for your design.