PF2472 Resistors Datasheet

PF2472 Datasheet PDF, Equivalent


Part Number

PF2472

Description

TO-247 Power Film Resistors

Manufacture

Riedon

Total Page 3 Pages
Datasheet
Download PF2472 Datasheet


PF2472
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
Type
PF2473
Power Rating
Heatsink1 Free Air2
140W
5W
Thermal
Resistance
0.9°C/W
Resistance Range3
Min Max
Tolerances
Temperature
Coefficients
0.02W
51KW
±1% ( R ≥0.10W )
±5%
±50ppm/°C ( R≥10W )
±100ppm/°C ( 0.1W ≤ R < 10W )
±250ppm/°C ( R < 0.1W )
PF2472
100W
3W
1.3°C/W
0.02W
51KW
±1% ( R ≥0.10W )
±5%
±50ppm/°C ( R≥10W )
±100ppm/°C ( 0.1W ≤ R < 10W )
±250ppm/°C ( R < 0.1W )
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
Temperature Range
Dielectric Strength
Max. Operating Voltage
Inductance
Insulation Resistance
Terminal Finish
Mass
Flammability Rating
Environmental Performance
Load Life
Humidity Resistance
Temperature Cycle
Solder Heat
Vibration
Value
-55°C to +175°C
2500 VAC
700 V or √P*R, whichever is less
PF2472 11.7nH / PF2473 12.3nH
>1000 Meg-Ohm
Tin Plated Copper
6.3g
94-V0
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
IEC60068-2-6
Riedon Inc.
© Riedon, Inc.
300 Cypress Avenue Alhambra CA 91801
(626) 284-9901
www.riedon.com sales@riedon.com
(626) 284-1704
Revised: 201901_003

PF2472
PF2470 Series
TO-247 Power Film Resistors
SPECIFICATIONS (continued)
Power Derating
% Power
100 +25 °C
80
60
40
20 +175 °C
0
-50 0
50 100 150
Flange Temperature (C)
200
Power Rating Notes -
The PF2470 Series Thin Film Resistors must be attached to a suit-
able heatsink. The maximum internal resistor temperature is 175°C.
To specify an appropriate heatsink use the following formula :
RHH
=
TMAX - (P * RHR) - 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 )
A
D
Dimension
mm
tolerance
±
Inches
tolerance
±
F
B
ØH
A
16.0 0.2
0.63 0.008
B 20.0 0.5 0.787 0.02
C * 14.5 0.5 0.571 0.02
D
4.8
0.2
0.189
0.008
E
10.9
0.1
0.429
0.004
C
ØG
E
IF
G
5.1 0.5 0.201 0.02
0.8 0.05 0.032 0.002
H
3.6
0.1
0.142
0.004
I
3.6
0.2
0.142
0.008
* Custom lead lengths available. Contact factory.
Mounting Notes -
The PF2470 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 ).
Back plate is isolated from both pins.
Ordering Information
Part Description: Part Type - Resistance - Tolerance
Example: PF2472 10 Ohm 1%
Riedon Inc.
© Riedon, Inc.
300 Cypress Avenue Alhambra CA 91801
(626) 284-9901
www.riedon.com sales@riedon.com
(626) 284-1704
Revised: 201901_003


Features PF2470 Series TO-247 Power Film Resistor s • TO-247 Housing • Rated Power to 140 Watts • Resistances from 0.0 2 to 51K Ohms • High Stability Film Resistance Elements • Resistance Tol erance to ±1% • Low Inductance ( <5 0nH ) • Excellent Pulse Handling • Isolated Back Plate SPECIFICATIONS Type PF2473 Power Rating Heatsink1 Fre e Air2 140W 5W Thermal Resistance 0. 9°C/W Resistance Range3 Min Max Tole rances Temperature Coefficients 0.02W 51KW ±1% ( R ≥0.10W ) ±5% ±50p pm/°C ( R≥10W ) ±100ppm/°C ( 0.1W ≤ R < 10W ) ±250ppm/°C ( R < 0.1W ) PF2472 100W 3W 1.3°C/W 0.02W 51 KW ±1% ( R ≥0.10W ) ±5% ±50ppm/ C ( R≥10W ) ±100ppm/°C ( 0.1W ≤ R < 10W ) ±250ppm/°C ( R < 0.1W ) 1 Power rating based on 25°C Flange Temp erature 2 Power rating based on 25°C A mbient Temperature 3 Consult Factory fo r Higher or Lower Values Specification Temperature Range Dielectric Strength Max. Operating Voltage Inductance Insulation Resistance Terminal Finish Mass Flammability Rating Environmental P.
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