HEAL
S E R I E S
TM
PHYSICAL CONFIGURATION
CURRENT SENSE/LOW OHM
CERAMIC ENCASED TYPE
LOW OHM/LOW INDUCTANCE
Resistance values above the maximum range are possible on special request.
Resistance values must be checked using 4½ digit micro-ohm meter with four wire system and insulated clips.
The resistance value must be checked at dimension LM as given in the table above.
d
L
LM
+
35
3
+
35
3
6mm, reduced solderability in this area
LC 2, LC4, LC 5
& LC7A
+
6
1
+
6
1
LC 7, LC 9
+
9
1
+
9
1
LC2
2.5 W
15.0
35.0
0.8
R0025
R047
1.6
LC4
4 W
18.0
40.0
0.8
R003
R051
2.0
LC 5
5 W
25.0
45.0
0.8
R004
R068
2.3
LC 7
7.5 W
25.0
45.0
0.8
R004
R068
4.8
LC7A
7 W
38.0
60.0
0.8
R006
R10
4.9
LC 9
9 W
38.0
60.0
0.8
R006
R10
7.3
L
+1.5
LM
+1.0
HTR
TYPE
DIMENSIONS (mm)
POWER
RATING
at 70 C
°
RESISTANCE
RANGE
d
+0.05
TYPICAL
WT. PER
PC (gms)
min max
Current Sense Applications
!
!
2.5 W to 9 W
R 0025 to R 10
Alloy Electrical
Resistance Ribbon
Tinned Copper
Terminals
Fire Proof
Ceramic Housing
Quartz Silica
Powder
All Welded Construction
TM
CURRENT SENSE/LOW OHM
CERAMIC ENCASED TYPE
H
E
A
L
ELECTRICAL AND ENVIRONMENTAL CHARACTERISTICS / DATA
TYPICAL APPLICATION
ORDERING INFORMATION
TOLERANCE
RESISTANCE VALUE
HTR TYPE
SERIES
HEAL
LC4
R047
J
Taping :
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.
Types LC2, LC4 & LC5 can be supplied in taped form. Please refer to
and
.
Note :
Due to recent technological advances, the ceramic cases used may be steatite ceramic or
tape/ammo pack specifications
tape/reel specifications
HEAL Series is an innovative method of providing low inductance resistors in a ceramic body.
The resistive element consists of a flat metal band which is welded to copper terminals before encapsulation.
These resistors are finding increasing use in industrial applications where pulse rating and ability to absorb high inrush current are
required.
For the effective utilisation of these resistors, please refer
.
“Applications / Design notes for current sense resistors”
Resistance tolerance
+ 10% [K]; + 5% [J]; + 3%[H]; + 2% [G]; + 1% [F]
Rated ambient temperature
at 70 C full power dissipation
Insulation resistance
> 1000 M [minimum]
Temperature co-efficient
+200 ppm/ C to +1200 ppm/ C depending on
resistance value and power rating.
(measured from -55°C to 125°C referenced to +25°C)
Short time overload
Max
∆
R + 2%
Moisture resistance
Max
∆
R + 1% (Average)
Load life
Max
∆
R + 3% (Average)
Ambient operating
-40 C to +155 C
temperature range
Flame test
UL specifications have been met satisfactorily.
°
°
°
°
°
Test
Performance Requirements