PF2470 Series
TO-247 Power Film Resistors
• TO-247 Housing • Rated Power to 140 Watts • Resistances from 0.02 to 51K...
PF2470 Series
TO-247 Power Film Resistors
TO-247 Housing Rated Power to 140 Watts Resistances from 0.02 to 51K Ohms High Stability Film Resistance Elements Resistance Tolerance to ±1% Low Inductance ( <50nH ) Excellent Pulse Handling Isolated Back Plate
SPECIFICATIONS
Type PF2473
Power Rating Heatsink1 Free Air2
140W
5W
Thermal Resistance
0.9°C/W
Resistance Range3 Min Max
Tolerances
Temperature Coefficients
0.02W
51KW
±1% ( R ≥0.10W ) ±5%
±50ppm/°C ( R≥10W ) ±100ppm/°C ( 0.1W ≤ R < 10W )
±250ppm/°C ( R < 0.1W )
PF2472
100W
3W
1.3°C/W
0.02W
51KW
±1% ( R ≥0.10W ) ±5%
±50ppm/°C ( R≥10W ) ±100ppm/°C ( 0.1W ≤ R < 10W )
±250ppm/°C ( R < 0.1W )
1 Power rating based on 25°C Flange Temperature 2 Power rating based on 25°C Ambient Temperature 3 Consult Factory for Higher or Lower Values
Specification Temperature Range Dielectric Strength Max. Operating
Voltage Inductance Insulation Resistance Terminal Finish Mass Flammability Rating
Environmental Performance Load Life Humidity Resistance Temperature Cycle Solder Heat Vibration
Value
-55°C to +175°C 2500 VAC 700 V or √P*R, whichever is less PF2472 11.7nH / PF2473 12.3nH >1000 Meg-Ohm
Tin Plated Copper
6.3g
94-V0
DR Test Conditions
±1% + 0.05W ±1% + 0.05W ±0.25% + 0.05W ±0.1% + 0.05W ±0.25% + 0.05W
25°C, 90 min ON, 30 min OFF, 1000 hr 40°C, 90-95% RH, DC 0.1W, 1000 hr -55°C for 30 min, +155°C for 30 min, 1000 hr +350°C, 3s IEC60068-2-6
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