PTFR0805B100RN9
RESI
Needs validationmedium risk
A parametric alternative with matching power and TCR, but significantly lower precision (±0.1% tolerance).
Best Alternatives to PTFR0805Q100RN9
PTFR0805Q100RN9 is an ultra-high precision 100Ω thin film resistor in an 0805 package, featuring a tight ±0.02% tolerance and ±10ppm/℃ TCR for demanding applications.
AI replacement insight
Electrical riskhigh
Degraded tolerance and TCR can impact the performance of precision analog circuits, references, or sensor interfaces.
Package risklow
All candidates share the same 0805 package, ensuring physical compatibility on the PCB.
Can it be replaced directly?
No direct, fully equivalent replacement for PTFR0805Q100RN9 has been identified. All candidates have a weaker resistance tolerance.
Best replacement path
Use RT0805BRB07100RL if lower precision (±0.1%) is acceptable, as it matches the target's TCR. No direct drop-in replacement with ±0.02% tolerance was found.
Main risk
The primary risk is the significant loss of precision, as all candidates have a ±0.1% tolerance compared to the target's ±0.02%.
Recommended alternatives
5Alternative comparison matrix
| Feature / factor | PTFR0805Q100RN9 | PTFR0805B100RN9 | RT0805BRB07100RL | ARG05BTC1000 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0805 | 0805 | 0805 | 0805 | 0805 — Package size matches.; RT0805BRB07100RL: Package size matches.; ARG05BTC1000: Package size matches.; TE05G1000BT: Package size matches. |
| Resistance | 100.0 Ω | 100.0 Ω | - | - | 100.0 Ω — Resistance value matches. |
| Tolerance | ±0.02% | ±0.1% | ±0.1% | ±0.1% | ±0.1% — Tolerance is 5x weaker than target.; RT0805BRB07100RL: Tolerance is 5x weaker than target.; ARG05BTC1000: Tolerance is 5x weaker than target.; TE05G1000BT: Tolerance is 5x weaker than target. |
| Power | 0.13 W | 0.13 W | 0.125 W | 0.125 W | 0.13 W / 0.125 W — Power rating matches.; RT0805BRB07100RL: Slightly lower power rating (datasheet value 1/8W).; ARG05BTC1000: Slightly lower power rating.; TE05G1000BT: Slightly lower power rating. |
| Tcr | ±10ppm/℃ | ±10ppm/℃ | 10 ppm/°C | ±25ppm/℃ | ±10ppm/℃ / 10 ppm/°C / ±25ppm/℃ — Temperature coefficient matches.; RT0805BRB07100RL: Temperature coefficient matches.; ARG05BTC1000: TCR is 2.5x weaker than target.; TE05G1000BT: TCR is 2.5x weaker than target. |
Application & sourcing insights
Questions & answers
The best available alternative is RT0805BRB07100RL from Yageo. While its tolerance is weaker (±0.1%), it matches the target's excellent temperature stability (±10ppm/℃).