
Panasonic
A pin-compatible upgrade with tighter tolerance and TCR in the same 0603 package, also AEC-Q200 qualified.
Find substitutes for the Vishay CRCW060340K2FKEA, a 40.2kΩ 1% 0.1W 0603 resistor. This page analyzes pin-compatible upgrades and alternatives, highlighting key differences in tolerance, TCR, and qualifications.
Most candidates offer equal or superior electrical characteristics.
All suggested alternatives are in the same 0603 package.
Using a non-AEC-Q200 part in an automotive design carries significant qualification and reliability risk.
Direct replacement for CRCW060340K2FKEA should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
For a direct upgrade, consider Panasonic's ERA3AEB4022V, which offers improved tolerance and TCR. For a commercial-grade equivalent, check Fenghua's RS-03K4022FT but verify qualification needs.
The main risk is substituting a commercial-grade part in an application that requires the target's AEC-Q200 automotive qualification.

Panasonic
A pin-compatible upgrade with tighter tolerance and TCR in the same 0603 package, also AEC-Q200 qualified.
| Feature / factor | CRCW060340K2FKEA | ERA3AEB4022V | AT0603BRD0740KL | RS-03K4022FT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 (1608 Metric) | 0603 (1608 Metric) | 0603 | 0603 (1608 Metric) — Package size matches.; AT0603BRD0740KL: Package size matches.; RS-03K4022FT: Package size matches. |
| Resistance | 40.2kΩ | 40.2kΩ | 40kΩ | 40.2kΩ | 40.2kΩ / 40kΩ — Resistance value is identical.; AT0603BRD0740KL: Resistance differs by ~0.5%, which is within the target's 1% tolerance.; RS-03K4022FT: Resistance value is identical. |
| Tolerance | ±1% | ±0.1% | ±0.1% | ±1% | ±0.1% / ±1% — Tighter tolerance may be beneficial but should be verified.; AT0603BRD0740KL: Tighter tolerance is an upgrade.; RS-03K4022FT: Tolerance is identical. |
| Tcr | ±100 ppm/K | ±25 ppm/°C | - | - | ±25 ppm/°C — Improved temperature stability. |
| Application | AEC-Q200 | AEC-Q200 | AEC-Q200 | Not Specified | AEC-Q200 / Not Specified — Both parts are automotive qualified.; AT0603BRD0740KL: Both parts are automotive qualified.; RS-03K4022FT: Candidate is commercial grade, target is automotive (AEC-Q200). |
| Power | 0.1W | - | 0.1W | - | 0.1W — Power rating is identical. |
Verified drop-in options for CRCW060340K2FKEA 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.