RH
Vishay Sfernice
Heatsink Encased Wirewound Power Resistors
FEATURES
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•
•
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5 W to 50 W at 25 °C
NF C 83-210
CECC 40 203
High stability < 0.05 % year
Low temperature coefficient typically ± 15 ppm/°C
Wide range of values from 0.006 Ω to 130 kΩ
Termination = Sn/Ag/Cu
Compliant to RoHS directive 2002/95/EC
Encased in a compact and light heatsink offering complete environmental protection, great mechanical strength and easy
mounting. Non inductive versions can be supplied under the RHNI designation (please indicate required specifications and
frequency range upon ordering).
NF F 16101, 10/1988 and 16102, 04/1992: Not applicable (our parts contain less than 10 g of combustible materials).
DIMENSIONS in millimeters
RH
A
D
M
F
N
Ø2
H
G B
J
ØK
L
ØP
E
Q
A
B±
0.2
D±
0.2
E±
0.5
F
G±1
H±
0.7
J±
0.5
ØK±
0.1
L
MAX.
M±
0.5
N±
0.3
ØP
MIN.
Q
WEIGHT
g
RH5
28.5 ± 1.5
12.5
11.3
16.3
6.8 ± 1.5
8.5
6.2
16.4
2.4
8.9
4.3
1.6
2.1
25.3 ± 1.5
4
RH10
35.5 ± 1.5
15.9
14
19
7.9 ± 1.5
11
7.9
20.6
2.4
11
5.6
2
2.1
30.6 ± 1.5
6.4
RH25
49 ± 1.3
19.8
18.3
28
11.1 ± 1.5
14
9.9
27.5
3.2
15
8
2.4
2.1
44.6 ± 1.3
16.1
RH50
70.2 ± 1.4
21.4
39.7
50
11 ± 1.2
14
10.7
29.4
3.2
15
8
2.4
2.1
66.5 ± 1.4
28.6
SERIES
ELECTRICAL SPECIFICATIONS
VISHAY SFERNICE MODEL AND STYLE
RH5
NF C 83-210 (CECC 40 203)
POWER RATING
RH10
RE4
RE1
RH25
RE2
RH50
RE3
MIL
Limits
25 °C
5W
10 W
20 W
30 W
Chassis Mounted Resistors
70 °C
4W
8W
16 W
24 W
413 cm2 for RH5 and RH10
536 cm2 for RH25 and RH50
Vishay Sfernice
Limits
25 °C
10 W
12.5 W
25 W
50 W
70 °C
8W
10 W
20 W
40 W
Unmounted Resistors
Vishay Sfernice
Limits
25 °C
4W
6W
9W
12 W
70 °C
3.2 W
4.8 W
7.2 W
9.6 W
160 V
250 V
550 V
1285 V
Rated Maximum Voltage (VRMS)
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For technical questions, contact: sfer@vishay.com
Document Number: 50013
Revision: 22-Dec-11
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