PF2470 Datasheet, PDF (1/2 Pages) Riedon Powertron – TO-247 Power Film Resistors

PF2470 Series
TO-247 Power Film Resistors
• TO-247 Housing
• Rated Power to 140 Watts
• Resistances from 0.01 to 51K Ohms
• High Stability Film Resistance Elements
• Resistance Tolerance to ±0.05%
• Low Inductance ( <50nH )
• Isolated Back Plate
SPECIFICATIONS
Type
PF2473
PF2472
Power Rating
Heatsink1 Free Air2
140W
5W
100W
3W
Thermal
Resistance
0.9°C/W
1.3°C/W
Resistance Range³
Min
Max
0.01W
51KW
0.01W
51KW
Tolerances
±1% ( R ≥ 0.10W )
±5%
Temperature
Coefficients
±50ppm/°C ( R≥10W )
±100ppm/°C ( 0.1W ≤ R < 10W )
±250ppm/°C ( R < 0.1W )
±1% ( R ≥ 0.10W )
±5%
±50ppm/°C ( R≥10W )
±100ppm/°C ( 0.1W ≤ R < 10W )
±250ppm/°C ( R < 0.1W )
Specification
Maximum Current
Temperature Range
Dielectric Strength
Max. Operating Voltage
Insulation Resistance
Environmental Performance
Load Life
Humidity Resistance
Temperature Cycle
Solder Heat
Vibration
Value
25A
-55°C to +155°C
2000 VAC
500 V
>1000 Meg-Ohm
DR
±1% + 0.05W
±1% + 0.05W
±0.25% + 0.05W
±0.1% + 0.05W
±0.25% + 0.05W
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}
Test Conditions
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
Riedon Inc.
300 Cypress Avenue Alhambra CA 91801
www.riedon.com
11/10
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