RK73H1ETTP4701F
KOA Speer Electronics, Inc.
Needs validationlow risk
AEC-Q200 qualified upgrade from the same manufacturer with improved tolerance and temperature stability.
Best Alternatives to RK73B1ETTP472J
RK73B1ETTP472J is a 4.7kΩ, 5%, 0.1W, 0402 thick film resistor from KOA Speer, qualified for automotive use. Several pin-compatible alternatives exist, with RK73H1ETTP4701F offering a direct upgrade path.
AI replacement insight
Electrical risklow
Multiple options exist with matching or better electrical specs.
Package risklow
The 0402 package is a standard, widely available footprint.
Sourcing riskmedium
While alternatives exist, verifying AEC-Q200 qualification may limit options.
Can it be replaced directly?
Direct replacement for RK73B1ETTP472J should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Use RK73H1ETTP4701F from the same manufacturer for a direct, qualified upgrade path with better tolerance and TCR.
Main risk
The main risk is using a non-AEC-Q200 qualified part in an automotive application that requires it.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | RK73B1ETTP472J | RK73H1ETTP4701F | RC0402FR-7W4K7L | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 4.7kΩ | 4.7kΩ | 4.7kΩ | 4.7kΩ — Resistance matches.; RC0402FR-7W4K7L: Resistance matches. | |
| Tolerance | ±5% | ±1% | ±1% | ±1% — Tighter tolerance is a safe upgrade.; RC0402FR-7W4K7L: Tighter tolerance is an upgrade. | |
| Power | 0.1W | 0.1W | 0.125W | 0.1W / 0.125W — Power rating matches.; RC0402FR-7W4K7L: Higher power rating is a safe upgrade. | |
| Tcr | ±200ppm/°C | ±100ppm/°C | - | ±100ppm/°C — Improved temperature stability. | |
| Package | 0402 (1005 Metric) | 0402 | 0402 | 0402 — Package size matches.; RC0402FR-7W4K7L: Package size matches. | |
| Application | AEC-Q200 | AEC-Q200 | General Purpose | AEC-Q200 / General Purpose — Both are automotive qualified.; RC0402FR-7W4K7L: Target is AEC-Q200 qualified. |
Application & sourcing insights
Questions & answers
Verified drop-in options for RK73B1ETTP472J 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.