PF2472-27RF1 [RIEDON]
RES 27 OHM 100W 1% TO247;
| 型号： | PF2472-27RF1 |
| 厂家： | 
RIEDON POWERTRON |
| 描述： | RES 27 OHM 100W 1% TO247 |
| 文件： | 总3页 (文件大小：282K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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
PF2470 Series
TO-247 Power Film Resistors
SPECIFICATIONS(continued)
Power Rating Notes -
Power Derating
% Power
The PF2470 Series Thin Film Resistors must be attached to a suit-
able heatsink. The maximum internal resistor temperature is 175°C.
+25 °C
100
To specify an appropriate heatsink use the following formula :
80
60
40
20
0
TMAX - (P * RHR) - TA
RHH =
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 )
+175 °C
-50
0
50
100
150
200
Flange Temperature (C)
A
D
tolerance
±
tolerance
±
Inches
Dimension
mm
0.008
0.02
A
B
16.0
20.0
0.2
0.5
0.63
F
0.787
B
C
*
0.02
C
14.5
4.8
0.5
0.2
0.571
0.189
ØH
0.008
D
E
F
0.004
0.02
10.9
5.1
0.1
0.5
0.429
0.201
0.032
I
0.002
G
0.8
0.05
ØG
0.004
0.008
H
I
3.6
3.6
0.1
0.2
0.142
0.142
E
* 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.
300 Cypress Avenue
Alhambra CA 91801
(626) 284-9901
(626) 284-1704
Revised: 201901_003
© Riedon, Inc.
www.riedon.com
sales@riedon.com
PF2470 Series
TO-247 Power Film Resistors
Pulse Energy Durability
Pulse Peak Power (W)
Pulse Energy Durability
Pulse Peak Power (W)
PF2472_10ohm-1%
PF2473_10ohm-1%
1000k
100k
1000k
Tentative continuous-pulse power allowance at
duty 0.01. Load life test will be necessary in
actual equipment, Because curve will be changed
by resistance, repetition, duty and operating
temperature. Dotted shows estimation.
Tentative continuous-pulse power allowance at
duty 0.01. Load life test will be necessary in
actual equipment, Because curve will be changed
by resistance, repetition, duty and operating
temperature. Dotted shows estimation.
100k
10k
1k
10k
1k
1300W
1100W
100
10
100
10
100W
140W
10n 100n 1u 10u 100u 1m 10m 100m
1
10
10n 100n 1u
10u 100u 1m 10m 100m
1
10
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
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