RH HR RER
Vishay Sfernice
High Reliability Wirewound
Power Resistors
FEATURES
As defined in the ESA/SCC specifications two quality levels
are proposed :
• Level B with serialized components,
• Level C without serialization.
• Mount onto a heatsink
Originally developed for space application, these resistors are
housed in an aluminum body with a hard anodic coating.
• ESA/SCC 4003
These components are manufactured, selected and tested
to ESA/SCC 4003 specification.
The variants offered differ only by the terminal sizes.
SERIES
RH HR 5
VARIANT 01 VARIANT 03
MAX.
DIMENSIONS in millimeters
RH HR 10
VARIANT 01
MIN.
MIN.
DIM.
MIN.
27.01
12.20
1.19
11.03
13.67
5.19
6.91
5.43
15.62
2.23
7.34
1.81
0.86
2.03
1.95
3.56
MAX.
30.15
12.70
2.77
11.23
16.81
8.33
10.05
7.01
17.20
2.49
8.92
4.95
2.44
2.29
2.15
–
MAX.
Ø K
O
36.50
16.13
3.18
14.52
20.62
9.49
12.7
8.71
21.41
2.52
11.10
6.73
3.18
2.29
2.15
–
27.01 30.15
12.20 12.70
33.36
15.63
1.60
14.02
17.43
6.35
9.56
7.13
19.83
2.26
9.52
3.59
1.60
2.03
1.95
3.56
A
B
H
G
B
1.19
2.77
C
11.03 11.23
13.67 16.81
D
D
E
E
C
L
5.19
6.91
5.43
8.33
10.05
7.01
F
M
N
G
H
J
F
15.62 17.20
J
P
(2 holes)
2.23
7.34
1.81
0.86
1.14
1.20
2.16
2.49
8.92
4.95
2.44
1.40
1.40
–
ØK
L
R
M
N
A
ØP
Q
R
ELECTRICAL SPECIFICATIONS
VISHAY SFERNICE DESIGNATION
RH HR 5
RER 60
RH HR 10
ESA Designation
RER 65
4003/002
4003/001
ESA Specification Applied
2.4W
unmounted
4W
mounted
8W
mounted
4.8W
unmounted
+ 70°C
Power Rating
At
3W
unmounted
5W
mounted
10W
mounted
6W
unmounted
+ 25°C
Limiting Element Voltage
Temperature Coefficient
Qualified Ohmic Range
250V
160V
0.05Ω ≤ R < 1Ω ± 100ppm/°C
1Ω
Code 4
Code 3
Code 9
≤ R < 20Ω ± 50ppm/°C
R ≥ 20Ω ± 30ppm/°C
1Ω to 1kΩ
1Ω to 2kΩ
Tolerance
± 0.5% to ± 1%
– 55°C to + 275°C
Temperature Range
Document Number: 56006
Revision 14-Jun-02
www.vishay.com
11
For technical questions, contact sfer@vishay.com