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POWER TYPE

CERAMIC ENCASED WIRE WOUND RESISTORS
FIRE PROOF

HCA / HCV

 

SERIES

•

Very high degree of insulation

•

Low surface temperature

•

TCR as low as + 100 ppm/

 0

C available

•

1W to 20W

PHYSICAL CONFIGURATION

HTR

POWER

RESISTANCE

WT.

TYPE

RATING

L

W

H

d

RANGE

PER PC

at 70

0

C

±1.5

±1

 ±1

±0.05

MIN

MAX

(gms)

C-1A

1W

13.0

5.5

5.5

0.8

R10

370R

1.4

C-1

1W

15.0

6.5

7.5

0.8

R10

400R

1.9

C-2

2W

17.5

7.5

7.0

0.8

R10

1K0

2.5

C-3

3W

22.0

8.0

8.0

0.8

R15

1K8

3.8

C-5

5W

22.0

9.5

9.5

0.8

R20

2K1

5.1

C-7

7W

35.0

9.5

9.5

0.8

R82

5K2

7.8

C-10

10W

48.0

9.5

9.5

0.8

R82

11K

10.8

C-15

15W

48.0

12.5

12.5

1.0

1R2

11K

17.8

(25

0

C)

C-20

20W

65.0

12.5

12.5

1.0

1R2

13K

22.0

(25

0

C)

DIMENSIONS(mm)

•

Resistance values below the above range are also available in a range of temperature coefficients from 450 ppm/

 0

C to 1300 ppm/

 0

C.

•

Resistance values above the range are available using ceramic substrates.

•

In order to facilitate vertical mounting of the large 7W to 20W resistors in HCA series on heavily populated PCB’s they can be
supplied on request with mounting brackets as shown in HCV series.

PHYSICAL CONFIGURATIONS

HCV SERIES

HTR

POWER

DIMENSIONS(mm)

RESISTANCE

WT

TYPE

RATING

RANGE [Ohms] PER PC

at 70

0

C

L

1

L

3

L

4

H

1

H

2

H

3

W

1

W

2

W

3

d±0.1

Min.

Max.

(gms)

CV-7

7

60±1.5

5±0.5

7±1

2.1±0.15

11±1

9.5±1

10±1

2.1±0.15 10±1

0.8

R50

5K2

10.0

CV-10

10

67±1.5

5±0.5

7±1

2.1±0.15

11±1

9.5±1

10±1

2.1±0.15 10±1

0.8

R82

11K

13.3

CV-15

15

62.5±2

4.5±0.2

6.5±1

2.5±0.15

14±1 12.5±1.2 13±1.2

2.5±0.15 13±1

1.0

1R2

11K

22.1

CV-20

20

78±2

4.5±0.2

6.5±1

2.5±0.15

14±1 12.5±1.2 13±1.2

2.5±0.15 13±1

1.0

1R2

13K

26.4

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ELECTRICAL AND ENVIRONMENTAL CHARACTERISTICS / DATA

Test

Performance Requirements

Resistance Tolerance

±10% [K]; ±5%[J]; [< 1

Ω

 ±0.05

Ω

]

Rated ambient temperature

Up to 10W, full power dissipation at 70

0

C

[see derating curve]

15W/20W full power dissipation at 25

0

C

Di-electric withstanding voltage

Max. 

@

R ±[2% + 0.05

Ω

]

Insulation resistance

> 1000 M [minimum)

Temperature co-efficient

±200 ppm/

0

C [>10

Ω

]

±450 ppm/

0

C [<10

Ω

]

±600 ppm/

0

C [<10

Ω

]

Short time overload

Max. 

@

R ±[2% + 0.05

Ω

]

Moisture resistance

Max. 

@

R±[5% + 0.05

Ω

]

Load life

Max. 

@

R± [<5% + 0.05

Ω

]

Ambient operating temperature range

-25

0

C to + 155

0

C

Flame test

Specifications laid down by UL have been met satisfactorily

TYPICAL APPLICATION

HCA/HCV Series resistors are almost universally used in the far east for almost all audio, TV and Industrial Equipment.This series enjoys
the following distinct advantages over normal coated resistors:
1) As the resistive element is hermetically sealed in a ceramic case using a cement  which enjoys flame retardant properties even at

high overload no damage can be caused to neighbouring components.

2) They are resistant-against aggressive solvents.
3) Due to very high degree of insulation and low surface temperature, these resistors can be mounted with their bodies relatively closer

to the P.C. Boards.

4) These resistors are also commonly referred to in the far east as cement resistors owing to the nature of their Construction.
5) In certain markets these resistors are also wrongly called fusible resistors.

ORDERING INFORMATION

NOTE:
TAPING :

Types C-1A, C-1, C-2, C-3 and C-5 can be supplied in taped form. Please refer to page 49 for taping specifications.

NOTE :

Due to recent technological advances, the ceramic cases used may be steatite ceramic / corderite ceramic / high alumina
ceramic depending on the nature of application. Hence the ceramic cases may be off-white / variations of brown and
variations of grey; colours which are inherent to these ceramic materials.

HCA [HCV]

C-7 [CV-7]

100

Ω

J

TOLERANCE

RESISTANCE VALUE

HTR TYPE

SERIES

Specifications subject to change without notice.