PF2200 Series
TO-220 Power Thin Film Resistors
SPECIFICATIONS
(continued)
Specification
Maximum Current
Temperature Range
Dielectric Strength
Max. Operating Voltage
Insulation Resistance
Inductance
Value
25A
-55°C to +155°C : PF2202, PF2203, PF2205
-55°C to +120°C : PF2201
2000 VAC
P
*
R
( 500V MAX )
>1000 Meg-Ohm
<10nH ( At the Standoff )
Environmental Performance
Load Life
Humidity Resistance
Temperature Cycle
Solder Heat
Vibration
DR
±1% + 0.05W
±1% + 0.05W
±0.25% + 0.05W
±0.1% + 0.05W
±0.25% + 0.05W
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
Power Derating Curve
120
100
Power Rating Notes -
The PF2200 Series Thin Film Resistors must be attached to a
suitable heatsink. Without a heatsink the maximum power rating
is 1W ( 1/2W for the PF2201 ). The maximum internal resistor
temperature is 155°C ( 120°C for the PF2201 ).
Power ( % )
80
60
40
20
0
Al
lO
PF
th
22
er
s
To specify an appropriate heatsink use the following formula :
01
R
H
H
=
-25
0
25
50
75
100
125
150
175
T
MAX
- (
P
*
R
H
R
) -
T
A
P
Where:
Backplate Temperature (°C)
R
qH
= Thermal Resistance of Heatsink ( °C/W )
R
qR
= Thermal Resistance of Resistor ( °C/W )
T
MAX
= Maximum Temperature of Resistor ( °C )
T
A
= Ambient Temperature of Heatsink ( °C )
P = Power Through Resistor ( W )
Mounting Notes -
The PF2200 Series Thin Film Resistors must be attached to
a suitable 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 mount-
ing screw to 8 in-lbs ( 0.9 N-m ).
Mounting tab is isolated from both pins.
Riedon Inc.
07/13
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
RIEDON [ RIEDON POWERTRON ]
