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RWR78S49R9BPS73 Datasheet(PDF) 2 Page - Vishay Siliconix

Part # RWR78S49R9BPS73
Description  Wirewound Resistors
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Manufacturer  VISHAY [Vishay Siliconix]
Direct Link  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

RWR78S49R9BPS73 Datasheet(HTML) 2 Page - Vishay Siliconix

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RWR Military
www.vishay.com
Vishay Dale
Revision: 30-Mar-12
2
Document Number: 30203
For technical questions, contact: ww2bresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
DIMENSIONS in inches [millimeters]
Note
(1) On some standard reel pack methods, the leads may be trimmed to a shorter length than shown.
MILITARY MODEL
DIMENSIONS in inches [millimeters]
AB
C
RWR81
0.250 ± 0.031 [6.35 ± 0.787]
0.085 ± 0.020 [2.16 ± 0.508]
0.020 ± 0.0015 [0.508 ± 0.038]
RWR82
0.312 ± 0.016 [7.92 ± 0.406]
0.078 + 0.016 - 0.031 [1.98 + 0.406 - 0.787]
0.020 ± 0.0015 [0.508 ± 0.038]
RWR80
0.406 ± 0.031 [10.31 ± 0.787]
0.094 ± 0.031 [2.39 ± 0.787]
0.020 ± 0.0015 [0.508 ± 0.038]
RWR71
0.812 ± 0.062 [20.62 ± 1.58]
0.187 ± 0.031 [4.75 ± 0.787]
0.032 ± 0.002 [0.813 ± 0.051]
RWR89
0.560 ± 0.062 [14.22 ± 1.58]
0.187 ± 0.031 [4.75 ± 0.787]
0.032 ± 0.002 [0.813 ± 0.051]
RWR74
0.875 ± 0.062 [22.23 ± 1.58]
0.312 ± 0.031 [7.92 ± 0.787]
0.040 ± 0.002 [1.02 ± 0.051]
RWR84
0.875 ± 0.062 [22.23 ± 1.58]
0.312 ± 0.031 [7.92 ± 0.787]
0.040 ± 0.002 [1.02 ± 0.051]
RWR78
1.780 ± 0.062 [45.21 ± 1.58]
0.375 ± 0.031 [9.525 ± 0.787]
0.040 ± 0.002 [1.02 ± 0.051]
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
RWR RESISTOR CHARACTERISTICS
Dielectric Withstanding Voltage
VAC
500 minimum for 2 W and smaller, 1000 minimum for 3 W and larger
Short Time Overload
-
5 x rated power for 5 s for 3 W size and smaller,
10 x rated power for 5 s for 5 W size and greater
Maximum Working Voltage
V
(P x R)1/2
Insulation Resistance
.
1000 M
 minimum dry, 100 M minimum after moisture test
Terminal Strength
lb
5 minimum for 2 W and smaller, 10 minimum for 3 W and larger
Solderability
-
Meets requirements of ANSI J-STD-002
Operating Temperature Range
°C
- 55 to + 250
RESISTANCE TEMPERATURE COEFFICIENT
TEMPERATURE
COEFFICIENT
(ppm/°C)
RWR71
RWR74
RWR78
RWR80
RWR81
RWR82
RWR84
RWR89
RESISTANCE
RANGE (
)
RESISTANCE
RANGE (
)
RESISTANCE
RANGE (
)
RESISTANCE
RANGE (
)
RESISTANCE
RANGE (
)
RESISTANCE
RANGE (
)
RESISTANCE
RANGE (
)
RESISTANCE
RANGE (
)
± 650
0.1 to 0.499
0.1 to 0.499
0.1 to 0.499
0.1 to 0.499
0.1 to 0.499
0.1 to 0.499
0.1 to 0.499
0.1 to 0.499
± 400
0.505 to 1.0
0.505 to 1.0
0.505 to 1.0
0.505 to 1.0
0.505 to 1.0
0.505 to 1.0
0.505 to 1.0
0.505 to 1.0
± 50
1.01 to 10
1.01 to 10
1.01 to 10
1.01 to 10
1.01 to 10
1.01 to 10
1.01 to 10
1.01 to 10
± 30
10.1 to 73.2
10.1 to 158
10.1 to 453
-
-
-
10.1 to 158
10.1 to 42.2
± 20
74.1
and above
160
and above
459
and above
10.1
and above
10.1
and above
10.1
and above
160
and above
42.7
and above
B
1.50 [38.10]
(1)
min.
A
C


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