RC0402FR-7W1KL
Yageo
Needs validationlow risk
Yageo RC0402FR-7W1KL is a pin-compatible alternative with a higher power rating (1/8W), offering increased robustness.
Best Alternatives to RTT021001FTH
Find reliable substitutes for the RTT021001FTH, a 1kΩ 1% 0402 Thick Film resistor. This guide provides verified pin-compatible alternatives, high-reliability upgrades, and expert analysis to ensure a successful replacement.
AI replacement insight
Package risklow
All suggested alternatives are in the same 0402 package, ensuring physical compatibility.
Electrical riskmedium
Switching from Thick Film to Thin Film technology requires review, especially for pulse-withstanding capability.
Sourcing risklow
The target and alternatives are common values from major manufacturers, ensuring good availability.
Can it be replaced directly?
Direct replacement for RTT021001FTH should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Start with Datasheet verified or Strong match candidates for RTT021001FTH, then review parametric alternatives for package and electrical fit.
Main risk
The main risk is substituting with a Thin Film resistor (e.g., AT0402BRD071KL) without verifying its suitability, as it may have different pulse handling characteristics than the original Thick Film part.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | RTT021001FTH | RC0402FR-7W1KL | WR04X1001FTL | AF0402FR-071KL | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 | 0402 | 0402 (1005 metric) | 0402 | 0402 / 0402 (1005 metric) — Package size matches.; WR04X1001FTL: Package size matches.; AF0402FR-071KL: Package size matches. |
| Resistance | 1 kΩ | 1 kΩ | 1 kΩ | 1 kΩ, ±1%, 1/16W | 1 kΩ / 1 kΩ, ±1%, 1/16W — Resistance matches.; WR04X1001FTL: Resistance matches.; AF0402FR-071KL: Core electrical specs match. |
| Power | 1/16 W | 1/8 W | 1/16 W | - | 1/8 W / 1/16 W — Higher power rating provides more design margin.; WR04X1001FTL: Power rating matches. |
| Tcr | ±100 ppm/°C | ±100 ppm/°C | ≤ ±100 ppm/°C | - | ±100 ppm/°C / ≤ ±100 ppm/°C / ±25 ppm/°C — Temperature coefficient matches.; WR04X1001FTL: Temperature coefficient is compatible.; AT0402BRD071KL: Better TCR provides higher stability over temperature. |
| Tolerance | ±1% | - | ±1% | - | ±1% / ±0.1% — Tolerance matches.; AT0402BRD071KL: Tighter tolerance offers higher precision. |
| Application | General Purpose | - | - | AEC-Q200, Anti-Sulfurated | AEC-Q200, Anti-Sulfurated — Automotive grade and suitable for harsh environments.; AT0402BRD071KL: Automotive qualification is an upgrade. |
| Technology | Thick Film | - | - | - | Thin Film — Technology differs; may affect noise or pulse handling. |
Application & sourcing insights
Questions & answers
Verified drop-in options for RTT021001FTH 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.