SH
Vishay Sfernice
Heatsink Encased Wirewound Power Resistors
Industrial Applications
FEATURES
• ≤
50 W at + 25 °C
•
High power characteristics
•
Utilize heatsink capability
•
Good mechanical protection
•
Industrialized product
•
Compliant to RoHS directive 2002/95/EC
Built for high power dissipation applications, these components have very good overall characteristics for industrial use under
harsh environmental conditions.
RoHS
COMPLIANT
DIMENSIONS
in millimeters
A
D
M
F
N
Ø2
H
J
G
B
Ø
K
E
Q
Ø
P
L
SERIES
SH5
SH10
SH25
SH50
A
28.5 ± 1.5
35.5 ± 1.5
49 ± 1.3
70.2 ± 1.4
B±
0.2
12.5
15.9
19.8
21.4
D±
0.2
11.3
14
18.3
39.7
E±
0.5
16.3
19
28
50
F
6.8 ± 1.5
7.9 ± 1.5
11.1 ± 1.5
11 ± 1.2
G±1
8.5
11
14
15.5
H±
0.7
6.2
7.9
9.9
10.7
J±
0.5
16.4
20.6
27.5
29.4
ØK±
0.1
2.4
2.4
3.2
3.2
L
MAX.
8.9
11
15
15
M±
0.5
4.3
5.6
8
8
N±
0.3
1.6
2
2.4
2.4
ØP
MIN.
2.1
2.1
2.1
2.1
Q
25.3 ± 1.5
30.6 ± 1.5
44.6 ± 1.3
66.5 ± 1.4
WEIGHT
g
3
8.8
16.5
30.8
ELECTRICAL SPECIFICATIONS
VISHAY SFERNICE SERIES
Power Rating
Chassis mounted resistors:
413 cm
2
for SH5 and SH10, 536 cm
2
for SH25 and SH50
Unmounted resistors
Ohmic Value
Tolerance
Rated Maximum Voltage
Dielectric Strength V
RMS
Insulation Resistance
Temperature Coefficient
Climatic Category
Temperature Limits
160 V
800 V
250 V
1000 V
25 °C
at
70 °C
25 °C
at
70 °C
3.2 W
0.1
Ω
to
3.3 kΩ
4.8 W
0.1
Ω
to
15 kΩ
±5%
550 V
2000 V
1285 V
2000 V
7.2 W
0.1
Ω
to
33 kΩ
9.6 W
0.1
Ω
to
51 kΩ
8W
4W
10 W
6W
20 W
9W
40 W
12 W
SH5
10 W
SH10
12.5 W
SH25
25 W
SH50
50 W
> 10
4
MΩ
± 50 ppm/°C
> 3 x 10
4
MΩ
R
n
> 50
Ω
55/200/56
- 55 °C
+ 200 °C
Document Number: 50014
Revision: 05-Oct-09
For technical questions, contact:
sfer@vishay.com
www.vishay.com
107
SH
Vishay Sfernice
Heatsink Encased Wirewound Power Resistors
Industrial Applications
PERFORMANCE
TESTS
Momentary Overload
Climatic Sequence
Load Life
CONDITIONS
5
P
n
/5 s
- 55 °C
+ 200 °C
5 cycles
Nominal power
P
n
1000 h at 25 °C
TYPICAL DRIFTS
± 0.5 % max.
± 1 % max.
± 1 % max.
+ 0.05
Ω
+ 0.05
Ω
+ 0.05
Ω
POWER RATING
125
TEMPERATURE RISE
HOT SPOT TEMPERATURE IN °C
250
100
RATED POWER IN %
200
5
SH
0
75
150
50
100
1
SH
5
SH
0
2
SH
5
25
50
0
0
50
100
150
200
250 275 300
350
0
0
10
20
30
40
50
60
70
AMBIENT TEMPERATURE IN °C
RATED POWER IN W
(Mounted on heatsink chassis)
MARKING
Vishay Sfernice trademark, model, style, nominal resistance
(in
Ω),
tolerance (in %), manufacturing date.
PACKAGING
Bag of 10 units
ORDERING INFORMATION
SH
MODEL
25
STYLE
10 kΩ
OHMIC VALUE
5
%
TOLERANCE
BA10
PACKAGING
e1
LEAD (Pb)-FREE
SAP PART NUMBERING GUIDELINES
SH
MODEL
25
STYLE
10001
OHMIC VALUE
J
TOLERANCE
S03
PACKAGING
www.vishay.com
108
For technical questions, contact:
sfer@vishay.com
Document Number: 50014
Revision: 05-Oct-09
Legal Disclaimer Notice
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
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the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk and agree
to fully indemnify and hold Vishay and its distributors harmless from and against any and all claims, liabilities, expenses and
damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that Vishay
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No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by
any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 11-Mar-11
www.vishay.com
1