HSVAS/ HSVALS
SERIES
TM
PHYSICAL CONFIGURATION
SURFACE MOUNT
CERAMIC ENCASED TYPE
Surface Mount
Wire Wound/Current Sense Resistors
SV4ALS & SV5ALS :- Resistance value must be checked using 4½ digit micro-ohm meter with four wire system
and insulated clips and the designer of the pad layout might prefer to split the pad for four wire checking.
4.0+0.5
6.0+0.5
C
For the guidance of the Design Engineer, our applications laboratory has given the recommended pad size and
geometry which is shown below :-
MOUNTING / ASSEMBLY DATA
C
L
4.0+1.0
3.0+0.2
TM
HSVAS Series
Alloy Wire Wound Element
On Heat Conducting Ceramic/
Fiber Glass Substrate
Terminals Suitable For
Reflow Soldering
Quartz Silica Powder
Fire Proof Ceramic
Housing
HSVALS Series
Alloy Electrical
Resistance Ribbon
Terminals Suitable For
Reflow Soldering
Quartz Silica Powder
Fire Proof
Ceramic Housing
HSVAS SV4AS 4W 20.0 20.5 R10 11K 2.5
HSVAS SV5AS 5W 25.0 25.5 R10 16K 3.0
HSVALS SV4ALS 4W 20.0 20.5 R003 R051 2.5
HSVALS SV5ALS 5W 25.0 25.5 R004 R068 3.0
RESISTANCE
RANGE
C
(+1.5) min max
TYPICAL
WT. PC.
(gms)
HTR
TYPE
HTR
SERIES
POWER
RATING
AT 70°C
L
(+1.5)
DIMENSIONS (mm)
SURFACE MOUNT
SILICONE COATED TYPE
HSVAS/HSVALS
ELECTRICAL AND ENVIRONMENTAL CHARACTERISTICS / DATA
Performance Requirements
Test
Resistance tolerance + 10% [K]; + 5% [J]; +3% [H]; +2% [G];
+1% [F]
Rated ambient temperature at 70°C full power dissipation
derated linearly to zero at 275°C
Insulation resistance > 1000 Mega Ohms
Short time overload 5 times rated wattage for 5 sec.
Di-electric withstanding voltage 500 Volts r.m.s.
Ambient operating
temperature range -40°C to + 155°C
Temperature co-efficient of < + 250ppm/°C (Average). For very low
resistance resistance values, TCR will increase.
TYPICAL APPLICATIONS
These devices have been introduced to answer the increased demand for power resistors which can be surface mounted.
The HSVAS Series caters to those who require a normal wire wound with surface mounting and the HSVALS series
caters to those who require a shunt / current sense device which is surface mounted.
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 the 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.
ORDERING INFORMATION
TOLERANCE
RESISTANCE VALUE
HTR TYPE
SERIES
3K0/R03
HSVAS/HSVALS
SV4AS/SV5ALS
J
TM
