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HEAL

S E R I E S

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.

6mm, reduced solderability in this area

LC 2, LC4, LC 5

& LC7A

LC 7, LC 9

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

+1.5

+1.0

HTR

TYPE

DIMENSIONS (mm)

POWER
RATING

at 70 C

RESISTANCE

RANGE

+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

CURRENT SENSE/LOW OHM

CERAMIC ENCASED TYPE

ELECTRICAL AND ENVIRONMENTAL CHARACTERISTICS / DATA

TYPICAL APPLICATION

ORDERING INFORMATION

TOLERANCE

RESISTANCE VALUE

HTR TYPE

SERIES

HEAL

LC4

R047

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