AC0603FR-0791KL
Yageo
Needs validationlow risk
A pin-compatible upgrade with AEC-Q200 qualification and superior temperature and voltage ratings.
Best Alternatives to CR0603FA9102G
Finding a substitute for the CR0603FA9102G 91kΩ resistor involves matching the 0603 package, 1% tolerance, and 0.1W power rating. Several pin-compatible thick film resistors are available, with some offering upgraded performance like AEC-Q200 qualification.
AI replacement insight
Electrical risklow
Low if sticking to thick film parts with identical core parameters.
Package risklow
Low, as 0603 is a standard SMT package.
Sourcing risklow
Low, as 91kΩ 0603 resistors are widely available from multiple vendors.
Can it be replaced directly?
Direct replacement for CR0603FA9102G should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Use Yageo AC0603FR-0791KL for a direct, upgraded replacement, or FH RS-03K9102FT for a like-for-like alternative.
Main risk
The main risk is selecting a part with a different technology (e.g., thin film) or a slightly different resistance value without verifying its suitability for the specific circuit function.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | CR0603FA9102G | AC0603FR-0791KL | RS-03K9102FT | RT0603BRD0791KL | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Package size matches.; RS-03K9102FT: Package size matches.; RT0603BRD0791KL: Package size matches.; RS-03K9092FT: Package size matches. |
| Resistance | 91kΩ | 91kΩ | 91kΩ | - | 91kΩ / 90.9kΩ — Resistance value matches.; RS-03K9102FT: Resistance value matches.; RS-03K9092FT: Resistance is ~0.11% lower, within target's 1% tolerance. |
| Tolerance | ±1% | ±1% | ±1% | ±0.1% | ±1% / ±0.1% — Tolerance matches.; RS-03K9102FT: Tolerance matches.; RT0603BRD0791KL: Tighter tolerance is an upgrade.; RS-03K9092FT: Tolerance matches. |
| Power | 0.1W | 0.1W | 0.1W | - | 0.1W — Power rating matches.; RS-03K9102FT: Power rating matches. |
| Temperature | -55°C to +125°C | -55°C to +155°C | - | - | -55°C to +155°C — Wider operating temperature range. |
| Application | Commercial | AEC-Q200 | - | - | AEC-Q200 — Automotive qualified, an upgrade. |
| Technology | Thick Film | - | Thick Film | Thin Film | Thick Film / Thin Film — Technology matches.; RT0603BRD0791KL: Technology differs; may affect stability and pulse handling.; RS-03K9092FT: Technology matches. |
| Tcr | Not specified (likely >100) | - | - | 25 ppm/°C | 25 ppm/°C — Lower TCR provides better stability. |
Application & sourcing insights
Questions & answers
Verified drop-in options for CR0603FA9102G are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.