Wirewound resistors, adjustable from 25 W → 280 W
Vishay Sfernice model, RSSD series
Unique due to their ability to withstand intermittent overloads and to work in assemblies which are subject to severe impact / vibration conditions, these resistors demonstrate great mechanical strength
High dissipation and excellent resistance to thermal stress
Supplied with slider collar not set
Removal of the slider increases the resistance by 5 → 10%.
2 EN fixing brackets are supplied separately in pairs (
RS
788-5154
).
Dimensions (mm)
A
B max.
C min.
D
E
F
P
Q
R
Z
RSSD 10 x 50
50
11.5
5
40
22
6.35
31
4.2
18
1.5
RSSD 20 x 117
117
22
12.6
98
31
6.35
42
4.2
24
5
RSSD 25 x 168
168
27
16.4
147
33.5
9
51
5.7
28.5
6
RSSD 30 x 250
250
32
21.3
227
36
13
55
5.7
31
5
Max. dissipation at 25 °C:
RSSD 10 x 50 mm version: 25 W
RSSD 20 x 117 mm version: 100 W
RSSD 25 x 168 mm version: 200 W
RSSD 30 x 250 mm version: 280 W
Tolerance:
R 1 Ω ≤ R R ≥10 Ω: ±5%
Temperature coefficient:
+75 ppm / °C
Operating temperature:
–55 °C → +450 °C
