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
Resistance Range3
Power Rating
Type
Temperature
Coefficients
Thermal
Resistance
Tolerances
1
2
Heatsink
Free Air
Min
Max
±50ppm/°C ( R≥10W )
±100ppm/°C ( 0.1W ≤ R < 10W )
±250ppm/°C ( R < 0.1W )
±1% ( R≥0.10W )
PF2473
PF2472
140W
5W
0.9°C/W
1.3°C/W
0.02W
51KW
±5%
±50ppm/°C ( R≥10W )
±100ppm/°C ( 0.1W ≤ R < 10W )
±250ppm/°C ( R < 0.1W )
±1% ( R≥0.10W )
100W
3W
0.02W
51KW
±5%
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
Value
Temperature Range
Dielectric Strength
Max. Operating Voltage
Inductance
-55°C to +175°C
2500 VAC
700 V or √P*R, whichever is less
PF2472 11.7nH / PF2473 12.3nH
>1000 Meg-Ohm
Insulation Resistance
Terminal Finish
Tin Plated Copper
6.3g
Mass
Flammability Rating
94-V0
Environmental Performance
Load Life
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
Humidity Resistance
Temperature Cycle
Solder Heat
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
Vibration
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
(626) 284-9901
(626) 284-1704
Revised: 201901_003
© Riedon, Inc.
www.riedon.com
sales@riedon.com
RIEDON [ RIEDON POWERTRON ]
