
Yageo
Automotive-grade functional alternative in a much larger 0805 package.
Finding a substitute for the Yageo RC0100FR-07100KL, a 100kΩ 1% resistor, requires careful matching of its tiny 01005 package. While functional alternatives exist, a direct drop-in replacement must have the same physical footprint.
All candidates have a different, larger package (0402, 0603, 0805) than the target's 01005, requiring a mandatory PCB redesign.
Most candidates meet or exceed the target's key electrical specifications like power, tolerance, and TCR. Some use Thin Film technology which may be an upgrade.
No, a direct, pin-compatible replacement for RC0100FR-07100KL was not found in this review. All candidates have larger physical packages (0402 to 0805) and are not drop-in compatible.
Search for a 100kΩ, ±1% (or better) tolerance resistor in an 01005 package with a power rating of at least 1/32W.
The primary risk is physical incompatibility. The target uses a very small 01005 package, while all proposed alternatives are significantly larger, requiring a PCB layout change.

Yageo
Automotive-grade functional alternative in a much larger 0805 package.
| Feature / factor | RC0100FR-07100KL | AC0805FR-07100KL | FRH0805B1003TS | RT0402BRE07100KL | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 01005 | 0805 | 0805 | 0402 | 0805 / 0402 — Candidate is physically much larger, requires PCB redesign.; FRH0805B1003TS: Candidate is physically much larger, requires PCB redesign.; RT0402BRE07100KL: Candidate is physically larger, requires PCB redesign.; RT0402FRE07100KL: Candidate is physically larger, requires PCB redesign. |
| Resistance | 100kΩ | 100kΩ | 100kΩ | - | 100kΩ — matched; FRH0805B1003TS: matched |
| Tolerance | ±1% | ±1% | ±0.1% | ±0.1% | ±1% / ±0.1% — matched; FRH0805B1003TS: Candidate has tighter tolerance.; RT0402BRE07100KL: Candidate has tighter tolerance.; RT0402FRE07100KL: matched |
| Power | 1/32W | 1/8W | 1/8W | 1/16W | 1/8W / 1/16W — Candidate has higher power rating.; FRH0805B1003TS: Candidate has higher power rating.; RT0402BRE07100KL: Candidate has higher power rating.; RT0402FRE07100KL: Candidate has higher power rating. |
| Application | Commercial | AEC-Q200 | - | - | AEC-Q200 — Candidate is automotive grade. |
| Tcr | ±200 ppm/°C | - | ±100 ppm/°C | 50 ppm/°C | ±100 ppm/°C / 50 ppm/°C — Candidate has better temperature stability.; RT0402BRE07100KL: Candidate has better temperature stability.; RT0402FRE07100KL: Candidate has better temperature stability. |
| Technology | Thick Film | - | - | Thin Film | Thin Film — Different technology may affect noise/stability.; RT0402FRE07100KL: Different technology may affect noise/stability. |
The best alternative is another 100kΩ resistor in an 01005 package with ≥1/32W power and ≤1% tolerance. If a PCB redesign is possible, RT0402BRE07100KL offers superior electrical specs in a larger 0402 package.