
Viking Tech
Strong candidate matching package, resistance, and tolerance, but requires TCR verification for precision use.
Finding a substitute for the Yageo RT0402BRD0775KL precision resistor requires careful matching of its 75kΩ resistance, ±0.1% tolerance, and 25ppm/°C TCR. While several 0402 resistors exist, few match these tight specifications.
High risk of performance degradation if tolerance or TCR do not match the original's precision specs.
Low risk as all candidates share the common 0402 package.
Direct replacement for RT0402BRD0775KL should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The Viking Tech AR02BTC7502 is the closest match but requires TCR verification. Alternatives from the same Yageo RT series exist but have different resistance values.
The main risk is a loss of circuit precision due to mismatched tolerance or Temperature Coefficient of Resistance (TCR).

Viking Tech
Strong candidate matching package, resistance, and tolerance, but requires TCR verification for precision use.
| Feature / factor | RT0402BRD0775KL | AR02BTC7502 | RT0402BRD0773K2L | RT0402BRD0782KL | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 | 0402 (1005 Metric) | 0402 | 0402 | 0402 (1005 Metric) — Package size matches.; RT0402BRD0773K2L: Package size matches.; RT0402BRD0782KL: Package size matches.; AC0402FR-0775KL: Package size matches. |
| Resistance | 75kΩ | 75kΩ | 73.2kΩ | 82kΩ | 75kΩ / 73.2kΩ / 82kΩ — Resistance value matches.; RT0402BRD0773K2L: Resistance is ~2.4% lower. Requires circuit analysis to confirm suitability.; RT0402BRD0782KL: Resistance is ~9.3% higher, likely outside the acceptable range for a precision circuit. |
| Tolerance | ±0.1% | ±0.1% | ±0.1% | ±0.1% | ±0.1% / ±1% — Precision tolerance matches.; RT0402BRD0773K2L: Precision tolerance matches.; RT0402BRD0782KL: Precision tolerance matches.; AC0402FR-0775KL: Tolerance is 10x wider, a significant precision loss. |
| Technology | Thin Film | Thin Film | - | - | Thin Film / Thick Film — Resistor technology matches.; AC0402FR-0775KL: Different technology may affect noise and long-term stability. |
| Tcr | 25 ppm/°C | Not specified | 25 ppm/°C | 25 ppm/°C | Not specified / 25 ppm/°C / ±100 ppm/°C — TCR is critical for precision and must be verified to be ≤ 25 ppm/°C.; RT0402BRD0773K2L: TCR matches.; RT0402BRD0782KL: TCR matches.; AC0402FR-0775KL: TCR is 4x higher, indicating lower stability over temperature. |
Verified drop-in options for RT0402BRD0775KL 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.