English 
Non-inductive power resistor made by Riedon shows superior performance in high-frequency applications and high-speed pulse circuits. This TO-220 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 50W with Heatsink). It will perfectly match your applications.
Caracteristics:
- TO-220 Housing
- Power Rating up to 50 Watts
- Resistances from 0.01 to 51K Ohms
- High Stability Film Resistance Elements
- Resistance Tolerances to ±1%
- Low inductance (<50nH)
- Isolated Mounting Tab
- TCR to +-50ppm/°C
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 | ||||
| PF2205 | 50W | 1W | 2.3°C/W | 0.01Ω | 51KΩ | ±1% ( R≥0.1Ω ) ±5% | ±50ppm/°C ( R≥10Ω ) ±100ppm/°C ( 0.1Ω ≤ R < 10Ω ) ±250ppm/°C ( R < 0.1Ω ) |
| PF2203 | 35W | 1W | 3.3°C/W | 0.01Ω | 51KΩ | ±1% ( R≥0.1Ω ) ±5% | ±50ppm/°C ( R≥10Ω ) ±100ppm/°C ( 0.1Ω ≤ R < 10Ω ) ±250ppm/°C ( R < 0.1Ω ) |
| PF2202 | 20W | 1W | 5.9°C/W | 0.02Ω | 51KΩ | 0.1%,0.25%,0.5%, (R±≥10 Ω) ±1% ( R≥0.1Ω) ±5% | ±50ppm/°C ( R≥10Ω ) ±100ppm/°C ( 0.1Ω ≤ R < 10Ω ) ±250ppm/°C ( R < 0.1Ω ) |
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