Data sheet E 8.213 -
27496
RH HR
RER
Mount onto a heatsink
ESA SCC 4003
high reliability
wirewound power
resistors
Originally developed for space application, these resistors are housed in an
aluminium body with a hard anodic coating.
These components are manufactured, selected and tested to ESA SCC
4003 specification.
The variants offered differ only by the terminal sizes.
As defined in the ESA SCC specifications two test levels are proposed :
– level B with serialized components,
– level C without serialization.
Table 1
Series
RH 5 HR
VARIANT 01
VARIANT 03
min.
max.
min.
max.
RH 10 HR
VARIANT 01
min.
max.
ØK
O
H
G
B
Dim.
A
B
C
D
E
F
G
H
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
1,14
1,20
2,16
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
1,40
1,40
–
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
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
–
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
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
–
D
C
E
R
A
F
P
(2 holes)
J
ØK
L
N
J
M
L
M
N
ØP
Q
Dimensions in mm
Fig. 1
R
SPECIFICATIONS
Table 2
SFERNICE DESIGNATION
ESA DESIGNATION
ESA SPECIFICATION APPLIED
POWER
RATING
AT
+70°C
+25°C
RH 5 HR
RER 60
4003/001
4 W
mounted
5W
mounted
2,4 W
unmounted
3W
unmounted
RH 10 HR
RER 65
4003/002
8 W
mounted
10 W
mounted
4,8 W
unmounted
6W
unmounted
LIMITING ELEMENT VOLTAGE
160 V
0,05
Ω ≤
R < 1
Ω
1
Ω ≤
R < 20
Ω
R
≥
20
Ω
1
Ω
to 1 kΩ
250 V
±100 ppm/°C
± 50 ppm/°C
± 30 ppm/°C
Code 4
Code 3
Code 9
TEMPERATURE COEFFICIENT
QUALIFIED OHMIC RANGE
TOLERANCE
TEMPERATURE RANGE
1
Ω
to 2 kΩ
± 0,5 % to ±1 %
–55°C ... +275°C
8-12
PERFORMANCES
TESTS
INSULATION RESISTANCE
CONDITIONS
U
T =
500 V
LIMIT DRIFTS
10 GΩ min.
0,05
Ω
R
0,05
Ω
R
0,05
Ω
R
0,05
Ω
R
0,05
Ω
R
0,05Ω
R
Table 3
SOLDERING (thermal shocks)
SHORT TIME OVERLOAD
(chassis mounted)
TERMINAL STRENGTH
Τ= +
260°C t < 10 s
± (0,3 +
x 100) %
U =
√
5 x Pn x Rn t + 5 s
CEI 68-2-21
Tests Ua
CEI 68-2-14
5 cycles
CEI 68-2-6
10 / 2000 Hz 20 g
SCC 4003 and CEI 68-2- ..
–55°C / + 275°C / 5 cycles
2000 h at rated power at + 25°C, 90’ / 30’ cycle
± (0,3 +
x 100) %
± (0,2 +
x 100) %
RAPID TEMPERATURE CHANGE
± (0,5 +
x 100) %
VIBRATION
± (0,2 +
x 100) %
x 100) %
CLIMATIC SEQUENCE
± (1 +
Insulation resistance
≥
10
3
MΩ
LOAD LIFE
± (1 +
0,05
Ω
R
x 100) %
POWER RATING CHART
Fig. 2
10
MARKING
1
POWER DISSIPATION IN WATTS
2
5
3
4
The SCC component number is print markedon the
aluminium body. It shows: the number of the detail
specification which refers to the generic specification of
the resistor, the SCC variant number, the testing level
B or C, the ohmic value (4 digit code), the tolerance
(letter code) D : ±0,5%, F : ±1%, G : ±2%, J : ±5%; the
temperature coefficient (1 digit) 9 for ±30 ppm/°C, 3 for
±50 ppm/°C and 4 for ±100 ppm/°C; the manufacturing
date code (4 digits : two for the year and two for the
week), the identification lot, the manufacturer logo.
3
EXTENDED RANGE
Please consult SFERNICE for ohmic values and tole-
rances outside of the qualified range.
0
0
25
70
100
200
275
AMBIENT TEMPERATURE IN DEGREES CELSIUS
PACKAGING
1: RH10 HR mounted
2: RH10 HR unmounted
3: RH5 HR mounted
4: RH5 HR unmounted
NON INDUCTIVE STYLE
Resistors are packaged in transparent blister pack:
for RH5 HR type: 20 resistors per blister pack,
for RH10 HR type: 15 resistors per blister pack.
On the blister, information printed is: SFERNICE desi-
gnation, ESA/SCC detail specification, testing level,
ohmic value, tolerance and manufacturing date code.
On request, non inductive wiring RH HR can be manufactured
(non inductive wiring Ayrton Perry type).
Please, consult SFERNICE for extended range and feasibility.
ORDERING PROCEDURE
SFERNICE
SERIES
ESA
DESIGNATION
SCC
VARIANT
TESTING
LEVEL
OHMIC VALUE
TOLERANCE
RH5 HR
4003/001
03
B
100
Ω
± 1%
VISHAY S.A.
International Department
199, Boulevard de la Madeleine
B.P. 1159
F 06003 NICE CEDEX 1
Tel. : (33) 04 93 37 27 27
Fax. : (33) 04 93 37 27 26
8-13
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