
Yageo
Close parametric match in a shared 0603 package, but requires review of power dissipation requirements.
Find substitutes for the Bourns CR0603-FX-3012ELF, a 30.1 kOhm 1% 0.1W 0603 thick film resistor. This analysis covers parametric alternatives and potential upgrades, highlighting key differences for design review.
Resistance values differ and power safety margins are not met.
All viable candidates share the same 0603 package.
No drop-in replacement has been verified. Yageo RC0603FR-0731K6L is a strong candidate but requires review of power dissipation, as it does not meet a 1.5x power safety margin.
The closest parametric match is Yageo's RC0603FR-0731K6L, with a similar resistance of 31.6 kOhm. However, engineering review is critical.
The primary risk is electrical. Alternatives may have different resistance values or fail to provide a recommended power derating safety margin.

Yageo
Close parametric match in a shared 0603 package, but requires review of power dissipation requirements.
| Feature / factor | CR0603-FX-3012ELF | RC0603FR-0731K6L | AC0603DR-0720KL | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 — Identical package and pin count.; AC0603DR-0720KL: Identical package and pin count. | |
| Resistance | 30.1 kΩ | 31.6 kΩ | 20 kΩ | 31.6 kΩ / 20 kΩ — Within 5.3% of target, acceptable for most applications.; AC0603DR-0720KL: Significantly lower resistance (-33%) requires circuit analysis. | |
| Power | 0.1 W | 0.1 W | 0.1 W | 0.1 W — Matches target, but fails recommended 1.5x safety margin rule.; AC0603DR-0720KL: Matches target, but fails recommended 1.5x safety margin rule. | |
| Tolerance | ±1% | ±1% | ±0.5% | ±1% / ±0.5% — Identical tolerance.; AC0603DR-0720KL: Tighter tolerance is an upgrade. | |
| Voltage | 50 V | 75 V | - | 75 V — Higher voltage rating provides more margin. | |
| Application | Commercial | - | AEC-Q200 | AEC-Q200 — Automotive qualification is an upgrade. |
Yageo's RC0603FR-0731K6L is a strong candidate, offering a very close resistance value (31.6kΩ vs 30.1kΩ) in the same 0603 package. However, its power rating requires verification for your application's safety margin.