PF2200 Series
TO-220 Power Film Resistors
SPECIFICATIONS(continued)
Specification
Value
25A
Maximum Current
Temperature Range
-55°C to +155°C : PF2202, PF2203, PF2205
-55°C to +120°C : PF2201
Dielectric Strength
2000 VAC
500 V
Max. Operating Voltage
Insulation Resistance
>1000 Meg-Ohm
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
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
Humidity Resistance
Temperature Cycle
Solder Heat
IEC60068-2-6
Vibration
Power Rating Notes -
Power Derating Curve
120
100
80
60
40
20
0
The PF2200 Series Foil Resistors must be attached to a suitable
heatsink. The maximum internal resistor temperature is 155°C
(120°C for the PF2201).
To specify an appropriate heatsink use the following formula :
RqH = TMAX - ( P x RqR ) - TA
P
Where: RqH = Thermal Resistance of Heatsink ( °C/W )
RqR = Thermal Resistance of Resistor ( °C/W )
TMAX = Maximum Temperature of Resistor
TA = Ambient Temperature of Heatsink ( °C )
P = Power Through Resistor ( W )
-25
0
25
50
75
100
125
150
175
Ambient Temperature (°C)
Mounting Notes -
The PF2200 Series Film Resistors must be attached to a suit-
able heatsink. Mount resistor using thermal grease to a clean,
flat surface. Use a compression washer to provide 150 to 300
pounds ( 665 to 1330N ) of mounting force. Torque mounting
screw to 8 in-lbs ( 0.9 N-m ).
Mounting tab is isolated from both pins.
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
11/10
RIEDON [ RIEDON POWERTRON ]
