0402WGF2491TCE
UNI-ROYAL
Needs validationlow risk
A strong alternative with matching resistance, power, and 0402 package. FAE review recommended.
Best Alternatives to RTT022491FTH
Find verified substitutes and functional alternatives for the RALEC RTT022491FTH, a 2.49kΩ 1% 0.0625W 0402 chip resistor. Compare key parameters to ensure compatibility for your design.
AI replacement insight
Electrical riskmedium
Using a part with a different resistance value requires circuit analysis.
Package riskhigh
A non-0402 part will not fit the PCB footprint and requires a layout change.
Can it be replaced directly?
Direct replacement for RTT022491FTH should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
The most direct replacement is 0402WGF2491TCE due to its matching package and primary electrical specifications.
Main risk
The main risk is selecting a part with a different resistance value (e.g., 2.4kΩ) or physical package size (e.g., 0603), which could require circuit redesign or fail to meet performance targets.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | RTT022491FTH | 0402WGF2491TCE | 0603WAF2491T5E | RC0402FR-072K4L | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 2.49 kΩ | 2.49 kΩ | 2.49 kΩ | 2.4 kΩ | 2.49 kΩ / 2.4 kΩ / 2.7 kΩ — Exact match.; 0603WAF2491T5E: Exact match.; RC0402FR-072K4L: 3.6% lower resistance.; RC0402FR-072K7L: 8.4% higher resistance. |
| Package | 0402 | 0402 (1005 Metric) | 0603 | 0402 | 0402 (1005 Metric) / 0603 — Physically compatible package.; 0603WAF2491T5E: Larger package, not a drop-in.; RC0402FR-072K4L: Physically compatible package.; RC0402FR-072K7L: Physically compatible package. |
| Power | 0.0625 W | 0.0625 W | 0.1 W | 0.0625 W | 0.0625 W / 0.1 W — Identical power rating.; 0603WAF2491T5E: Higher power rating is safe.; RC0402FR-072K4L: Identical power rating.; RC0402FR-072K7L: Identical power rating. |
| Tolerance | ±1% | ±1% | - | - | ±1% — Identical precision. |
| Tcr | ±100 ppm/°C | Unknown | ±100 ppm/°C | ±100 ppm/°C | Unknown / ±100 ppm/°C — TCR not specified in source data, but likely matches.; 0603WAF2491T5E: Identical temperature coefficient.; RC0402FR-072K4L: Identical temperature coefficient.; RC0402FR-072K7L: Identical temperature coefficient. |
Application & sourcing insights
Questions & answers
Verified drop-in options for RTT022491FTH 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.