
UNI-ROYAL
A strong alternative from UNI-ROYAL with matching resistance, tolerance, power, and 0402 package.
Finding a substitute for the RC-02K3651FT involves matching its 3.65kΩ resistance, ±1% tolerance, and 0402 package. Several options exist, from direct matches to high-precision upgrades with slightly different parameters.
Several candidates have different resistance values or technology (thin film vs thick film).
All suggested candidates use a compatible 0402 package.
These are common resistor values from multiple large manufacturers.
Direct replacement for RC-02K3651FT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Use 0402WGF3651TCE for a near drop-in replacement after verifying its TCR. For higher precision, consider RT0402BRD073K7L if a small resistance change is acceptable.
The main risk is substituting with a part that has a different nominal resistance, which could alter circuit behavior if the design is sensitive to this value.

UNI-ROYAL
A strong alternative from UNI-ROYAL with matching resistance, tolerance, power, and 0402 package.
| Feature / factor | RC-02K3651FT | 0402WGF3651TCE | RT0402BRD073K3L | RT0402BRD073K7L | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 3.65kΩ | 3.65kΩ | 3.3kΩ | 3.7kΩ | 3.65kΩ / 3.3kΩ / 3.7kΩ / 3.9kΩ — Exact nominal resistance match.; RT0402BRD073K3L: -9.6% deviation from target.; RT0402BRD073K7L: +1.4% deviation, very close to target.; RT0402BRD073K9L: +6.8% deviation from target. |
| Tolerance | ±1% | ±1% | ±0.1% | ±0.1% | ±1% / ±0.1% — Matches target tolerance.; RT0402BRD073K3L: Tighter tolerance than target.; RT0402BRD073K7L: Tighter tolerance than target.; RT0402BRD073K9L: Tighter tolerance than target. |
| Power | 1/16W | 1/16W | - | - | 1/16W — Matches target power rating. |
| Package | 0402 | 0402 | - | - | 0402 — Matches target package. |
| Tcr | ±100ppm/℃ | Missing | 25 ppm/°C | 25 ppm/°C | Missing / 25 ppm/°C — TCR data missing, datasheet review needed.; RT0402BRD073K3L: Better TCR than target.; RT0402BRD073K7L: Better TCR than target.; RT0402BRD073K9L: Better TCR than target. |
| Technology | Thick Film | - | Thin Film | Thin Film | Thin Film — Different technology.; RT0402BRD073K7L: Different technology.; RT0402BRD073K9L: Different technology. |
Verified drop-in options for RC-02K3651FT 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.