PTFR0805B51K0N9
RESI
Needs validationlow risk
An otherwise identical resistor from the same series, but with a 51kΩ resistance value.
Best Alternatives to PTFR0805B47K0N9
The RESI PTFR0805B47K0N9 is a high-precision, AEC-Q200 qualified 47kΩ thin-film resistor in an 0805 package, valued for its tight tolerance (±0.1%) and low TCR (±10ppm/°C). Finding a direct replacement requires matching these key precision parameters.
AI replacement insight
Electrical riskhigh
Substituting with a part with weaker tolerance or TCR can cause circuit failure or performance degradation.
Package risklow
The 0805 package is standard, making physical replacement straightforward.
Can it be replaced directly?
No exact direct replacement is identified; all candidates have parametric differences. The closest options have weaker temperature coefficients or different resistance values.
Best replacement path
Find another thin-film 0805 resistor with identical or better tolerance (≤0.1%) and TCR (≤10ppm/°C).
Main risk
The primary risk is substituting a high-precision, low-TCR component with a general-purpose one, which can compromise circuit stability and accuracy.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | PTFR0805B47K0N9 | PTFR0805B51K0N9 | RT0805BRD0747KL | TC0525B4702T5G | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0805 | 0805 | 0805 | 0805 | 0805 — Form factor matches.; RT0805BRD0747KL: Form factor matches.; TC0525B4702T5G: Form factor matches.; AC0805FR-0747KL: Form factor matches. |
| Resistance | 47kΩ | 51kΩ | 47kΩ | 47kΩ | 51kΩ / 47kΩ — Resistance is ~8.5% higher. All other specs match.; RT0805BRD0747KL: Resistance value matches.; TC0525B4702T5G: Resistance value matches. |
| Tolerance | ±0.1% | ±0.1% | ±0.1% | ±0.1% | ±0.1% / ±1% — Precision tolerance matches.; RT0805BRD0747KL: Precision tolerance matches.; TC0525B4702T5G: Precision tolerance matches.; AC0805FR-0747KL: Candidate tolerance is 10x looser than target. |
| Tcr | ±10ppm/℃ | ±10ppm/℃ | 25 ppm/°C | 25 ppm/°C | ±10ppm/℃ / 25 ppm/°C / ±100 ppm/°C — Temperature coefficient matches.; RT0805BRD0747KL: Candidate TCR is higher, indicating less stability over temperature.; TC0525B4702T5G: Candidate TCR is higher, indicating less stability over temperature.; AC0805FR-0747KL: Candidate TCR is 10x worse than target. |
| Power | 0.13W | 0.13W | 0.125W | 0.125W | 0.13W / 0.125W — Power rating matches.; RT0805BRD0747KL: Candidate power rating is slightly lower. Based on summary, not inconsistent spec.; TC0525B4702T5G: Candidate power rating is slightly lower. Based on summary, not inconsistent spec. |
| Technology | Thin Film | - | - | - | Thick Film — Thick film has lower precision and stability than target's thin film. |
Application & sourcing insights
Questions & answers
The best alternative depends on application constraints. For similar performance, look for thin-film 0805 resistors with 47kΩ resistance, ±0.1% tolerance, and a TCR of ±10ppm/°C or better. PTFR0805B51K0N9 from the same series is a close match if a 51kΩ resistance is acceptable.