
UNI-ROYAL
A lower-cost thick film resistor with the same resistance but wider tolerance (±1% vs ±0.1%).
RT0402BRD0720K5L is a high-precision 20.5kΩ thin film resistor in an 0402 package. While no direct drop-in replacements are available, several parametrically similar alternatives exist that require engineering validation.
Using a part with different resistance, tolerance, or TCR can affect circuit accuracy and stability.
All suggested alternatives use the same standard 0402 package, ensuring physical compatibility.
No direct, drop-in replacement was found. While several parts share the same 0402 package, they either differ in resistance value or are significant downgrades in precision (tolerance, TCR, technology).
The best alternatives are other Yageo RT series resistors like RT0402BRD0720K3L (20.3kΩ) or RT0402BRD0721KL (21kΩ). They match all precision characteristics, but the slight resistance difference must be validated for the specific circuit.
The primary risk is a change in circuit performance due to differences in resistance value, tolerance, or temperature stability (TCR).

UNI-ROYAL
A lower-cost thick film resistor with the same resistance but wider tolerance (±1% vs ±0.1%).
| Feature / factor | RT0402BRD0720K5L | 0402WGF2052TCE | RT0402BRD0718K7L | RT0402BRD0720K3L | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 | 0402 | 0402 | 0402 | 0402 — Same EIA package size.; RT0402BRD0718K7L: Same EIA package size.; RT0402BRD0720K3L: Same EIA package size.; RT0402BRD0721KL: Same EIA package size. |
| Resistance | 20.5kΩ | 20.5kΩ | 18.7kΩ | 20.3kΩ | 20.5kΩ / 18.7kΩ / 20.3kΩ / 21kΩ — Resistance value matches.; RT0402BRD0718K7L: Resistance is ~8.8% lower.; RT0402BRD0720K3L: Resistance is ~1% lower.; RT0402BRD0721KL: Resistance is ~2.4% higher. |
| Tolerance | ±0.1% | ±1% | ±0.1% | ±0.1% | ±1% / ±0.1% — Candidate has 10x wider tolerance.; RT0402BRD0718K7L: Precision tolerance matches.; RT0402BRD0720K3L: Precision tolerance matches.; RT0402BRD0721KL: Precision tolerance matches. |
| Technology | Thin Film | Thick Film | - | Thin Film | Thick Film / Thin Film — Lower precision technology.; RT0402BRD0720K3L: Technology matches.; RT0402BRD0721KL: Technology matches. |
| Tcr | 25 ppm/°C | Unknown (typically >100ppm/°C) | - | 25 ppm/°C | Unknown (typically >100ppm/°C) / 25 ppm/°C — TCR is significantly worse.; RT0402BRD0720K3L: TCR matches.; RT0402BRD0721KL: TCR matches. |
The best alternatives are other high-precision thin film resistors from the same Yageo RT series, such as RT0402BRD0720K3L (20.3kΩ) or RT0402BRD0721KL (21kΩ). They require engineering review due to the slight resistance difference but match on all other critical parameters.