TM
SURFACE MOUNT RESISTORS
CERAMIC ENCASED TYPE
Flame Proof
High Temperature
Ceramic Housing
Inorganic Fire
Retardant Encapsulant
SERIES
POWER TYPE
Ceramic Encased Wire Wound Resistors
Surface Mount - Fire Retardant
HCAS
Terminals
Suitable For
Re-Flow Soldering
PHYSICAL CONFIGURATION
L
1
H
H
T
L
T
W
1
W
SIDE VIEW
PROFILE
DIMENSIONS (mm)
RESISTANCE TYPICAL SIZE
POWER
HTR
L
1
W
1
WT PER
RANGE
H
W
T
RATING
L
TYPE
PC (gms)
70°C
(+0.8) (+0.5) (+0.3) (+0.5) (+0.3) (+0.25) min max
C2S
C3S
2W
3W
11.0 10.0
17.0 16.0
5.0
7.5
7.0
7.0
5.5
5.5
2.5
2.5
R10
R10
2K0
5K6
1.0
2.0
4527
6927
IMPORTANT MOUNTING / ASSEMBLY DATA
For the guidance of the design engineer, our applications laboratory has given the recommended pad size and
geometry which is shown below :
C
B
HTR
TYPE
C2S
C3S
DIMENSIONS (mm)
A
3.94
3.94
B
5.84
5.97
C
5.21
11.94
A
TM
SURFACE MOUNT RESISTORS
CERAMIC ENCASED TYPE
HCAs
ELECTRICAL AND ENVIRONMENTAL CHARACTERISTICS / DATA
Test
Resistance tolerance
Performance Requirements
+10% [K]; +5% [J]; +3% [H];
+2% [G] +1% [F]
Temperature rise in °C
Ambient operating temperature range -55°C to +155°C
full power at 70°C
Insulation resistance
Thermal shock
Short time overload
Dielectric withstanding voltage
Load life
Temperature co-efficient
of resistance
Flame test
>1000 Mega Ohm
Max
DR
+[0.5% + R05]
Max
DR
+[2% + R05]
Max
DR
+[2% + R05]
Max
DR
+[5.0% + R05]
+100 ppm/ °C [>10R]
+80 ppm/ °C [<10R]
+450 ppm/ °C [<1R0]
Specification laid down by UL
have been met satisfactorily
TEMPERATURE RISE CURVE
200
150
100
50
C2S
C3S
0
0.5
1.0
1.5
2.0
2.5
3.0
Power in watts
DERATING CURVE
70°C
120
100
80
60
40
20
0
Rated Power [%]
C3S
C2S
40
80
120
160
200
240 275
Ambient Temperature [°C]
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
HCAS
C2S
R10
H
TOLERANCE
RESISTANCE V
ALUE
HTR TYPE
SERIES
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