RSSD
www.vishay.com
Vishay Sfernice
Revision: 16-Mar-16
2
Document Number: 50020
For technical questions, contact: sferfixedresistors@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
Note
(1)
10 % for RSSD 8 x 34 only.
DIMENSIONS in millimeters
RSSD
SERIES
CONNECTIONS A ± 2
Ø B
MAX.
Ø C
MIN.
D E
F + 0.5
+ 0
G - 4
- 0
H - 4
- 0
J
25 x 138 AN type1 cs type1 138 27 16.4 117 ± 2 33.5 ± 1 9 199 169 50 ± 1.5
25 x 168 AN type1 cs type1 168 27 16.4 147 ± 2 33.5 ± 1 9 229 199 50 ± 1.5
30 x 250 AN type1 cs type1 250 32 21.3 227 ± 2.5 36 ± 1 13 317 287 60 ± 1.5
40 x 370 AN type2 cs type2 370 43 22.3 332 ± 3 57 ± 1.5 18 432 405 69 max.
50 x 373 AN type2 cs type2 373 53 27.1 332 ± 3 63 ± 1.5 18 432 405 80 max.
RSSD
SERIES
CONNECTIONS K L ± 0.5 M ± 0.5 P Ø Q R
Z
APPROX.
AVERAGE UNIT
WEIGHT IN g
AN CS
25 x 138 AN type1 cs type1 27 ± 1 6.5 24 51 ± 1.5 5.7 28.5 ± 1 6 90 135
25 x 168 AN type1 cs type1 27 ± 1 6.5 24 51 ± 1.5 5.7 28.5 ± 1 6 115 160
30 x 250 AN type1 cs type1 30 ± 1 9 25 55 ± 1.5 5.7 31± 1 5 240 290
40 x 370 AN type2 cs type2 45 ± 1 9 30 81.5 max. 9.2 45 ± 1.5 10 845 925
50 x 373 AN type2 cs type2 51 ± 1.5 9 30 92.5 max. 9.2 51 ± 1.5 11.5 1270 1350
STANDARD ELECTRICAL SPECIFICATIONS
MODEL SIZE
RESISTANCE
RANGE
RATED POWER
P
25 °C
W
TOLERANCE
± %
RSSD 8 x 34 0834 0.12 to 10 16 5, 10 , 20
RSSD 10 x 50 1050 0.12 to 22 25 5, 10 , 20
RSSD 13 x 70 1370 0.12 to 43 42 5, 10 , 20
RSSD 16 x 94 1694 0.33 to 75 70 5, 10 , 20
RSSD 20 x 117 20117 0.22 to 100 100 5, 10 , 20
RSSD 25 x 138 25138 0.10 to 150 140 5, 10 , 20
RSSD 25 x 168 25168 0.12 to 220 200 5, 10 , 20
RSSD 30 x 250 30250 0.22 to 360 280 5, 10 , 20
RSSD 40 x 370 40370 0.47 to 470 450 5, 10 , 20
RSSD 50 x 373 50373 0.68 to 560 600 5, 10 , 20
MECHANICAL SPECIFICATIONS
Mechanical Protection Vishay Sfernice special cement
Resistive Element Nickel alloy wire
Connections
AN collars
CS supporting collars
Average Unit Weight 10 g to 1350 g
ENVIRONMENTAL SPECIFICATIONS
Temperature Range -55 °C, +450 °C
Climatic Category -55 °C / +200 °C / 56 days
TECHNICAL SPECIFICATIONS
Resistance Range
0.12 to 560
(E12 series)
Standard Tolerance
R 10 ± 5 %
(1)
1 R < 10 ± 10 %
0.1 R < 1 ± 20 %
Power Rating 14 W to 600 W at 25 °C
PERFORMANCE
TESTS CONDITIONS REQUIREMENTS TYPICAL VALUES AND DRIFTS
Short Time Overload 10 P
r
during 5 s 2 % 1 %
Climatic Sequence
-55 °C, +200 °C
5 cycles
3 % 1 %
Thermal Shock
Load at 100 % P
r
followed by cold -55 °C / 15
2 %
or 0.05
1 %
Load Life
90 / 30 cycle
1000 h at P
r
at +25 °C
5 % 1.5 %