HEAL
SERIES
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
HEAL
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
specifications.
Note : Due to recent technological advances, the ceramic cases used may be steatite ceramic or
tape/ammo pack specifications
andtape/reel
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 DR + 2%
Moisture resistance Max DR + 1% (Average)
Load life Max DR + 3% (Average)
Ambient operating -40 C to +155 C
temperature range
Flame test UL specifications have been met satisfactorily.
°
°°
°°
Test Performance Requirements
TM CURRENT SENSE/LOW OHM
CERAMIC ENCASED TYPE
