TM
WIRE WOUND RESISTORS
CERAMIC ENCASED TYPE
Alloy Wire Wound
Element On Heat
Conducting Ceramic /
Fibre Glass Substrate
Fire Proof
Ceramic Housing
HSVA/HSVAU
SERIES
Ceramic Type
Quartz Silica
Powder
AXIAL / VERTICAL MOUNTING
Mechanically Crimped
Termination Assembly
4 W to 17 W
R 04 to 70 K
PHYSICAL CONFIGURATION
0.8mm
LM
HTR
TYPE
POWER
RATING
at 70°C
DIMENSIONS (mm)
L
1
L
2
L
(+1.5) (+3.0)
(+3.0)
LM
+1
RESISTANCE TYPICAL
RANGE
WT.
min
max PER PC
(gms)
L
1
L
L
2
6mm, reduced solderability in this area
HSVA/HSVAU SERIES
The HSVAU series has been
developed in response to the
needs of our stockists for a dual
purpose resistor -axial
mounting and vertical mounting
when the longer lead L2 is
folded over.
SV4A
SV4AU
SV5A
SV5AU
SV7A
SV7AU
SV7BA
SV7BAU
SV9A
SV9AU
SV11A
SV11AU
SV17A
SV17AU
4W
4W
5W
5W
7W
7W
7W
7W
9W
9W
11W
11W
17W
17W
20.0
20.0
25.0
25.0
25.0
25.0
38.0
38.0
38.0
38.0
50.0
50.0
75.0
75.0
35.0
32.0
35.0
32.0
35.0
32.0
35.0
32.0
35.0
32.0
35.0
32.0
35.0
32.0
35.0
56.5
35.0
61.5
35.0
64.0
35.0
74.0
35.0
77.0
35.0
87.0
35.0
111.5
40
40
45
45
45
45
60
60
60
60
70
70
95
95
R04
R04
R05
R05
R05
R05
R10
R10
R10
R10
R10
R10
R10
R10
11K
11K
16K
16K
16K
16K
33K
33K
33K
33K
47K
47K
70K
70K
2.3
2.4
2.8
2.9
5.0
5.1
4.9
5.0
7.8
7.9
10.2
10.35
13.8
14.0
1.1
For resistance values less than R10 and tolerance less than +2% please
measure resistance over centered length LM.
1.6
9+1
2.6
10+1 0.7+0.1
2.4
8+1
0.7+0.1
Profile Dimensions
7+1
SV4A/SV4AU, SV5A/SV5AU
& SV7BA/SV7BAU
SV7A/SV7AU, SV9A/SV9AU,
SV11A/SV11AU & SV17A/SV17AU
TM
WIRE WOUND RESISTORS
CERAMIC ENCASED TYPE
HSVA/HSVAU
ELECTRICAL AND ENVIRONMENTAL CHARACTERISTICS / DATA
Test
Resistance tolerance
Rated ambient temperature
[see derating curve]
Voltage rating
Insulation resistance
Temperature co-efficient
Performance Requirements
+ 10% [K]; + 5% [J]; + 3% [H];
+2% [G]; +1% [F]
at 70°C full power dissipation
Rated dissipation [%]
DERATING CURVE
70°C
120
100
80
40
0
V= PxR
> 1000 M [minimum]
+40 to +150 ppm/ °C
[medium and high values]
+450 to +500 ppm/ °C
[low and very low values]
Max
∆
R+[2% + R05]
Max
∆
R+[3% + R05]
Max
∆
R+[3% + R05] average
-40°C to +155°C
UL Specifications have been
met satisfactorily.
Short time overload
Moisture resistance
Load life
Ambient operating
temperature range
Flame test
40
80
120
160
200
240
275
Ambient temperature [°C]
TYPICAL APPLICATIONS
The HSVA Series enjoys a wide market in TV power supply and industrial electronics field.
,
Depending upon the resistance value and application the resistor core may be fibreglass or ceramic.
These resistors also available for use in
pulse applications.
For further information please refer to
“Understanding pulse & over load capability of wire wound resistors”.
In case a tailor-made pulse resistor is required, please refer to
“Questionnaire of data required from
customers”
and provide data accordingly.
The HSVAU Series are very popular with stockists as they are capable of dual mounting - axial or vertical hence
are instrumental in reducing inventory.
ORDERING INFORMATION
HSVA/HSVAU
SV9A/SV9AU
4R7
K
TOLERANCE
RESISTANCE VALUE
HTR TYPE
SERIES
Note :
Due to recent technological advances, the ceramic cases used may be steatite ceramic or corderite
ceramic or high alumina ceramic depending on the nature of application. Hence the ceramic cases
may be off-white or variations of brown and variations of grey; colours which are inherent to these
ceramic materials.
In case Pulse type is required please suffix HTR Type with ‘I’, eg. SV-5AI.
