
UNI-ROYAL
A potential pin-compatible match, but requires TCR verification for precision circuits.
Yageo's RC0402FR-0751KL is a general-purpose 51kΩ 1% 1/16W thick film resistor in a standard 0402 package. Finding alternatives involves matching these key parameters and considering package compatibility.
High for non-0402 candidates, which require a new PCB layout.
Medium for parts with different resistance or unknown TCR.
These are common resistor values from multiple vendors.
Direct replacement for RC0402FR-0751KL should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
For a direct replacement, 0402WGF5102TCE is a strong candidate but requires TCR verification. For applications tolerant of resistance variance, RTT025002FTH (50kΩ) is an option.
The main risk is package mismatch for functional alternatives or resistance deviation for parametric alternatives, both requiring design review.

UNI-ROYAL
A potential pin-compatible match, but requires TCR verification for precision circuits.
| Feature / factor | RC0402FR-0751KL | 0402WGF5102TCE | RC0402FR-0756KL | RTT025002FTH | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 | 0402 | - | - | 0402 — Package size matches. |
| Resistance | 51kΩ | 51kΩ | - | - | 50kΩ — Resistance is ~2% lower, requires circuit validation. |
| Tolerance | ±1% | ±1% | - | - | ±1% — Resistance tolerance matches. |
| Power | 0.0625W | 0.0625W | - | - | 0.0625W — Power rating matches. |
| Tcr | ±100 ppm/°C | Unknown | - | - | ±100 ppm/°C — TCR matches. |
Verified drop-in options for RC0402FR-0751KL 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.