PF2200 Series

PF2200 Series
TO-220 Power Thin Film Resistors
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TO-220 Housing
Rated Power to 50 Watts
Resistances from 0.02 to 51K Ohms
High Stability Film Resistance Elements
Resistance Tolerance to ±0.1%
TCR to ±50ppm/°C
Low Inductance ( <10nH )
Isolated Mounting Tab
SPECIFICATIONS
Power Rating
Resistance Range3
Tolerances
Temperature
Coefficients
51KΩ
±1% ( R ≥0.1Ω )
±5%
±50ppm/°C ( R ≥10Ω )
±100ppm/°C ( 0.1Ω ≤ R < 10Ω )
±250ppm/°C ( R < 0.1Ω )
0.02Ω
51KΩ
±1% ( R ≥0.1Ω )
±5%
±50ppm/°C ( R ≥10Ω )
±100ppm/°C ( 0.1Ω ≤ R < 10Ω )
±250ppm/°C ( R < 0.1Ω )
0.02Ω
220Ω
±1% ( R ≥0.1Ω )
±5%
±50ppm/°C ( R ≥10Ω )
±100ppm/°C ( 0.1Ω ≤ R < 10Ω )
±250ppm/°C ( R < 0.1Ω )
220Ω
51KΩ
±1%, ±5%
±50ppm/°C
Type
Heatsink1
Free Air2
Thermal
Resistance
PF2205
50W
1W
2.3°C/W
0.02Ω
PF2203
35W
1W
3.3°C/W
20W
1W
PF2202
Min
Max
5.9°C/W
10W
1W
1
Power rating based on 25°C Flange Temperature
Power rating based on 25°C Ambient Temperature
3
Consult Factory for Higher or Lower Values
2
Ordering Information
Part Description: Part Type - Resistance - Tolerance - TCR
Example: PF2203 0.5 Ohm 1% 100ppm
Riedon Inc.
08/15
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
PF2200 Series
TO-220 Power Thin Film Resistors
SPECIFICATIONS (continued)
Specification
Value
Maximum Current
25A
Temperature Range
-55°C to +155°C : PF2202, PF2203, PF2205
-55°C to +120°C : PF2201
Dielectric Strength
2000 VAC
P * R ( 500V MAX )
Max. Operating Voltage
Insulation Resistance
>1000 Meg-Ohm
Inductance
<10nH ( At the Standoff )
Environmental Performance
∆R
Test Conditions
Load Life
±1% + 0.05Ω
25°C, 90 min ON, 30 min OFF, 1000 hr
Humidity Resistance
±1% + 0.05Ω
40°C, 90-95% RH, DC 0.1W, 1000 hr
Temperature Cycle
±0.25% + 0.05Ω
-55°C for 30 min, +155°C for 30 min, 1000 hr
Solder Heat
±0.1% + 0.05Ω
+350°C, 3s
Vibration
±0.25% + 0.05Ω
Power Rating Notes -
Power Derating Curve
120
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 ).
100
Power ( % )
IEC60068-2-6
80
60
PF
22
40
Al
lO
th
er
To specify an appropriate heatsink use the following formula :
s
01
RHH =
20
0
-25
0
25
50
75
100
125
150
175
Where:
Backplate Temperature (°C)
TMAX - (P * RHR) - TA
P
RθH = Thermal Resistance of Heatsink ( °C/W )
RθR = Thermal Resistance of Resistor ( °C/W )
TMAX = Maximum Temperature of Resistor ( °C )
TA = 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 mounting screw to 8 in-lbs ( 0.9 N-m ).
Mounting tab is isolated from both pins.
Riedon Inc.
08/15
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704