Riedon PF2274 Series

The PF2274 non-inductive, thin film power resistor series from Riedon offers all E12 resistance values in the range between 0.1Ω and 1MΩ, plus 2Ω and 5Ω, with a power rating of 300W. They offer a standard tolerance of 5% (1% available upon request) and a TCR as low as ±100 ppm/°C. The PF2274 thin film power resistors come in a standard TO-227 housing with isolated back plate and M4 x 5mm screws included, and are available in three different terminal configurations. They require mounting on a suitable heat sink (see datasheet for calculations).

• Power rating of 300W with heat sink (5W without heat sink)
• Resistance range 0.1Ω to 1MΩ, nominal E12 plus 2Ω and 5Ω
• Inductance as low as 14nH
• Standard tolerance ±5%, ±1% available upon request
• Thermal resistance as low as 0.23°C/W
• TCR of ± 100ppm/°C
• Temperature range −55°C to +155°C
• TO-227 housing
• Isolated back plate

Riedon PF2274 series thin film power resistors are available in three different terminal configurations:

The below table gives the full specifications for each resistor model available in the Riedon PF2274 resistor series: