
Yageo
Direct upgrade from the same manufacturer with tighter tolerance (±0.1%) and better TCR (25 ppm/°C).
RT0402DRE075K1L is a 5.1 kΩ, 0.5% tolerance, 1/16W thin film chip resistor in an 0402 package. Finding a substitute requires matching its precision characteristics, particularly tolerance and TCR.
High if using a downgraded part with worse tolerance/TCR.
0402 is a standard package with many options.
Precision components can have longer lead times than general-purpose ones.
Yes, direct replacements exist. The best options are thin film resistors with ≤0.5% tolerance and ≤50 ppm/°C TCR, such as RT0402BRD075K1L.
Upgrade to a part with tighter tolerance and TCR, like Yageo's RT0402BRD075K1L, for improved performance.
Using a lower-grade 'Thick Film' resistor or one with a higher tolerance (e.g., 1% or 5%) can compromise the precision of the circuit.

Yageo
Direct upgrade from the same manufacturer with tighter tolerance (±0.1%) and better TCR (25 ppm/°C).
| Feature / factor | RT0402DRE075K1L | RT0402BRD075K1L | AR02BTC5101 | RMC04025.1K1%N | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 | 0402 | 0402 | 0402 | 0402 — Same EIA package size.; AR02BTC5101: Same EIA package size.; RMC04025.1K1%N: Same EIA package size. |
| Resistance | 5.1 kΩ | 5.1 kΩ | 5.1 kΩ | - | 5.1 kΩ — Identical resistance value.; AR02BTC5101: Identical resistance value. |
| Tolerance | ±0.5% | ±0.1% | ±0.1% | ±1% | ±0.1% / ±1% — Tighter tolerance provides higher precision.; AR02BTC5101: Tighter tolerance provides higher precision.; RMC04025.1K1%N: Worse tolerance, may impact circuit precision. |
| Tcr | 50 ppm/°C | 25 ppm/°C | ±25 ppm/°C | - | 25 ppm/°C / ±25 ppm/°C — Lower TCR provides better stability over temperature.; AR02BTC5101: Lower TCR provides better stability over temperature. |
| Technology | Thin Film | Thin Film | Thin Film | Thick Film | Thin Film / Thick Film — Same high-precision technology.; AR02BTC5101: Same high-precision technology.; RMC04025.1K1%N: Different technology, implies worse stability and noise. |
RT0402BRD075K1L from Yageo is an excellent upgrade path, offering tighter tolerance (±0.1%) and a better TCR (25 ppm/°C) in the same package.