Pi Attenuator Table
Model, Equation and Calculator
Suggested Resistor Values
- Based on commonly available values from distributors.
| Impedance Ω | Attenuation dB | R1 Nominal Ω (Shunt) | R2 Nominal Ω (Series) |
|---|---|---|---|
| 50 | 0.5 | 1700 | 3 |
| 50 | 1 | 870 | 5.6 |
| 50 | 2 | 430 | 12 |
| 50 | 3 | 300 | 18 |
| 50 | 4 | 220 | 24 |
| 50 | 5 | 180 | 30 |
| 50 | 6 | 150 | 36 |
| 50 | 7 | 130 | 43 |
| 50 | 8 | 120 | 51 |
| 50 | 9 | 110 | 62 |
| 50 | 10 | 100 | 75 |
| 50 | 20 | 62 | 240 |
| 50 | 30 | 53 (stack 100||110) | 790 (stack 1500||1600) |
- Provided for convenience only. Not responsible for errors. Use at your risk.