C&H Technology RA User Manual
6121 Baker Road,
Suite 108
Minnetonka, MN 55345
www.chtechnology.com
Phone (952) 933-6190
Fax (952) 933-6223
1-800-274-4284
Thank you for downloading this document from C&H Technology, Inc.
Please contact the C&H Technology team for the following questions -
Technical
Application
Assembly
Availability
Pricing
Phone – 1-800-274-4284
E-Mail – sales@chtechnology.com
www.chtechnology.com - SPECIALISTS IN POWER ELECTRONIC COMPONENTS AND ASSEMBLIES - www.chtechnology.com
RA
Vishay Sfernice
Adjustable Wirewound Enamelled Resistors
FEATURES
• 21 Watt to 180 Watt at 25°C
• NF C 93-214
- RBA 13 x 70
- RBA 20 x 117
- RBA 25 x 168
”B” Ring
The ceramic tubular core ensures high dissipation capacity and excellent resistance to thermal shock and overload. The resistor
winding is evenly coiled on the core and protected by an enamel coating. A longitudinal opening provides for one or more
electrical connections by means of sliding collars equipped with a tongued connector.
DIMENSIONS in millimeters
WELDED STAINLESS STEEL 304 L BAND “B”
DIMENSIONS in millimeters
A
F
ØB
Ø4.2
D
O
E
ØC
K
4
5
°
J
WELDED STAINLESS STEEL 304 L COLLAR “AN” TYPE 1
M
ØS
ØC
ØB
V
ZT
A
X
4
R
SCREWED STAINLESS STEEL 304 L “CS” TYPE 1
A
P
26
ØB
L
N
H
15
U
4
5
°
Q
5
°
RA
MODEL
13 x 70 16 x 94 20 x 117 25 x 138 25 x 168 30 x 250
Connection AN-B* AN-B AN-B AN-B-CS AN-B-CS AN-B-CS
A ± 2 70 94 117 138 168 250
Ø B max. 16 19.5 23 28 28 33
Ø C min. 5 9 9 12 12 17
D 16 ± 0.5 17.5 ± 0.5 21 ± 0.7 23.5 ± 1 23.5 ± 1 26 ± 1
E + 0.5
+ 0
F + 0.5
+ 0
788888
10.5 12 14 15 15 18
H ± 1 - - - 27 27 30
J max 19.523 2527.527.530
K max 24 29.5 31.5 34 34 36.5
L - 0
- 4
- - - 199 229 317
M 56 ± 2 78 ± 2 98 ± 2 117 ± 2 147 ± 2 227 ± 2.5
N - 0
- 4
- - - 169 199 287
O max 24.5 28 33 38.5 38.5 43.5
P ± 1.5 – – – 50 50 60
Q ± 0.5 – – – 24 24 25
R 24 ± 0.5 26.5 ± 0.5 31 ± 0.7 33.5 ± 1 33.5 ± 1 36 ± 1
S 4.2 4.2 4.2 5.7 5.7 5.7
T 6.35 6.35 6.35 9 9 13
U ± 0.5 –––6.56.59
V 20 ± 0.5 21 ± 0.5 24 ± 0.7 28.5 ± 1 28.5 ± 1 33 ± 1
X 34.5 ± 1 38 ± 1 42 ± 1 51 ± 1.5 51 ± 1.5 55 ± 1.5
Z approx 3.5 56665
Average
unit
40 70 116 200 225 415
weight in g
* Also with CS and CR collars. See RW data sheet.
www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 50019
67 Revision: 21-Jun-06
Loading...