English 
Non-inductive power resistor made by Riedon shows superior performance in high-frequency applications and high-speed pulse circuits. This TO-247 style resistors use an advanced power film formed on a heat-conducting alumina substrate that is metalized and soldered to a heat-dissipating copper plate tab, providing devices that offer excellent thermal resistance in small-size (up to 140W). Similar to WMHP series from Wellwyn, It will perfectly match high-density applicationss.
Caracteristics:
- TO247 Housing
- Power Rating to 140 Watts
- Resistances from 0.01 to 51K Ohms
- High Stability Film Resistance Elements
- Resistance Tolerances to ±1%
- Low inductance (<50nH)
- Isolated Back Plate
Applications :
- high frequency circuits
- wireless communications
- high-energy pulses
- Medical equipment.
Type | Power Rating | ThermalResistance | resistance Range | Tolerances | Temperature Coefficients | ||
|---|---|---|---|---|---|---|---|
| Heatsink | Free air | Min | Max | ||||
| PF2473 | 140W | 5W | 0.9°C/W | 0.02Ω | 51KΩ | ±1% (R≥0.1Ω), ±5% | ±50ppm/°C (R ≥ 10Ω) ±100ppm/°C (0.1Ω ≤ R < 10Ω) ±250ppm/°C (R < 0.1Ω) |
| PF2472 | 100W | 3W | 1.3°C/W | 0.02Ω | 51KΩ | ±1% (R≥0.1Ω), ±5% | ±50ppm/°C (R ≥ 10Ω) ±100ppm/°C (0.1Ω ≤ R < 10Ω) ±250ppm/°C (R < 0.1Ω) |
2.5.0.0
2.5.0.0