Adjustable Wirewound Vitreous Resistors
Low Ohmic Values (0.10 Ω available)
www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 50020
70 Revision: 24-Jan-07
RSSD
Vishay Sfernice
FEATURES
• High power rating: 16 W to 600 W at 25 °C
• Heavy overloads 10 Pn 15 s ≤ 1 %
• Low ohmic values 0.10 Ω available
• High long term stability drift < 1.5 % after 1000 h
• Excellent withstanding of thermal shock
• Mechanical strength
• Fire proof
RSSD medium and high power resistors are noted for their ability to withstand heavy transient and severe shock and vibration
conditions. They complement the ohmic range of Vishay styles RW, RWST and RA in the low value area, and can be tapped by
means of adjustable collars. Standard RSSD resistors have a single adjustable collar.
DIMENSIONS
* CS connections on request
CS collars
WELDED STAINLESS STEEL 304 L COLLARS “AN” TYPE 1
Ty p e 2
Screwed
Ty p e 1
Solded
SCREWED STAINLESS STEEL 304 L COLLARS “CS” TYPE 1
SCREWED STAINLESS STEEL 304 L COLLARS “CS” TYPE 2
A
ZF
¯ B
D
¯ Q
R
¯ C
¯ C
P
E
P
A
¯ B
26
¯ C
J
K
M
G
H
L
A
¯ B
23
58
J
K
¯ C
M
G
H
15
15
L
F
DIMENSIONS in millimeters
RSSD STYLE 8 × 34 10 × 50 13 × 70 16 × 94 20 × 117
Connection
AN
type 1
AN
type 1
AN
type 1
CS*
AN
type 1
AN
type 1
A ± 2 34 50 70 94 117
Ø B max. 10 11.5 14.5 18 22
Ø C min. 4.1 5 6.7 9.2 12.6
D 27 ± 2 40 ± 2 56 ± 2 78 ± 2 98 ± 2
E 20 ± 05 22 ± 0.5 24 ± 0.5 26.5 ± 0.5 31 ± 0.7
F+ 0.5
+ 0
5 6.35 6.35 6.35 6.35
P 28 ± 1 31 ± 1 34 ± 1 38 ± 1 42 ± 1
Ø Q 3.2 4.2 4.2 4.2 4.2
R 16 ± 0.5 18 ± 0.5 20 ± 0.5 21 ± 0.5 24 ± 0.7
Z approx. 1 1.5 3.5 4 5
Average unit AN
weight in g
10 22 38 55 80
DIMENSIONS in millimeters
RSSD STYLE 25 × 138 25 × 168 30 × 250 40 × 370 50 × 373
Connection
AN
type 1
AN
type 1
AN
type 1
AN
type 2
AN
type 2
CS
type 1
CS
type 1
CS
type 1
CS
type 2
CS
type 2
A ± 2 138 168 250 370 373
Ø B max. 27 27 32 43 53
Ø C min. 16.4 16.4 21.3 22.3 27.1
D 117 ± 2 147 ± 2 227 ± 2.5 332 ± 3 332 ± 3
E 33.5 ± 1 33.5 ± 1 36 ± 1 57 ± 1.5 63 ± 1.5
F + 0.5
+ 0
9 9 13 18 18
G- 4
- 0
199 229 317 432 432
H- 4
- 0
169 199 287 405 405
J 50 ± 1.5 50 ± 1.5 60 ± 1.5 69 max. 80 max.
K 27 ± 1 27 ± 1 30 ± 1 45 ± 1 51 ± 1.5
L ± 0.5 6.5 6.5 9 9 9
M ± 0.5 2424253030
P 51 ± 1.5 51 ± 1.5 55 ± 1.5 81.5 max. 92.5 max.
Ø Q 5.7 5.7 5.7 9.2 9.2
R 28.5 ± 1 28.5 ± 1 31 ± 1 45 ± 1.5 51 ± 1.5
Z approx. 6 6 5 10 11.5
Average unit
weight in g
AN 90 115 240 845 1270
CS 135 160 290 925 1350
(7 pages)
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