
FOJAN
A 40.2kΩ 0402 resistor with higher tolerance (±1%) and TCR (±100ppm/°C).
Find and compare substitutes for the Yageo RT0402BRD0740K2L, a 40.2kΩ 0.1% 25ppm/°C thin film resistor in an 0402 package. Review parametric alternatives and assess risks for your application.
High risk if substitute has different resistance, tolerance, or TCR.
Low risk as all candidates are in the same 0402 package.
Low risk as alternatives are available from major manufacturers.
No direct, drop-in replacement with identical key parameters was identified. All suitable alternatives require a parametric trade-off, most commonly in the resistance value.
Use another part from the Yageo RT0402BRD series, like RT0402BRD0739KL (39kΩ) or RT0402BRD0743KL (43kΩ), if your circuit can tolerate a small resistance deviation.
The primary risk is performance degradation from using a part with a different resistance value, a looser tolerance, or a higher TCR, which is critical for precision applications.

FOJAN
A 40.2kΩ 0402 resistor with higher tolerance (±1%) and TCR (±100ppm/°C).
| Feature / factor | RT0402BRD0740K2L | FRC0402F4022TS | AC0402FR-0740K2L | RT0402BRD0739KL | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 | 0402 | 0402 | 0402 | 0402 — Matches target package.; AC0402FR-0740K2L: Matches target package.; RT0402BRD0739KL: Matches target package.; RT0402BRD0743KL: Matches target package. |
| Resistance | 40.2kΩ | 40.2kΩ | 40.2kΩ | 39kΩ | 40.2kΩ / 39kΩ / 43kΩ — Matches target resistance.; AC0402FR-0740K2L: Matches target resistance.; RT0402BRD0739KL: Resistance is ~3% lower than target.; RT0402BRD0743KL: Resistance is ~7% higher than target. |
| Tolerance | ±0.1% | ±1% | ±1% | ±0.1% | ±1% / ±0.1% — Weaker than target's precision tolerance.; AC0402FR-0740K2L: Weaker than target's precision tolerance.; RT0402BRD0739KL: Matches target precision tolerance.; RT0402BRD0743KL: Matches target precision tolerance. |
| Tcr | 25 ppm/°C | ±100 ppm/°C | ±100 ppm/°C | 25 ppm/°C | ±100 ppm/°C / 25 ppm/°C — Higher TCR indicates less stability over temperature.; AC0402FR-0740K2L: Higher TCR indicates less stability.; RT0402BRD0739KL: Matches target TCR.; RT0402BRD0743KL: Matches target TCR. |
| Technology | Thin Film | Thick Film | - | - | Thick Film — Different technology may affect noise and stability. |
| Application | Commercial | - | AEC-Q200 | - | AEC-Q200 — Automotive qualification may be an upgrade. |
Yageo's RT0402BRD0739KL is a strong candidate, offering identical precision specs (0.1%, 25ppm/°C) and technology, with a slightly lower resistance of 39kΩ (-3%). Always verify circuit tolerance.