HTR-India-Products-Wire-Wound-Resistors-Ceramic-Encased-Resistor-HCA-English1-html.html

PHYSICAL CONFIGURATION

HTR

TYPE

POWER

RATING at

70°C

±1.5

±1

±0.05

DIMENSIONS (mm)

RESISTANCE RANGE

TYPICAL

WEIGHT

PER PC (gms)

min

max

±1

C-1A

13.0

5.5

0.8

R20

3K3

1.4

C-1

15.0

7.5

6.5

0.8

R05

4K7

1.9

C-2

17.5

7.5

7.0

0.8

R05

7K5

3.0

C-3

22.0

8.0

0.8

R05

11K

4.0

C-5

22.0

9.5

0.8

R05

11K

4.9

C-7

35.0

9.5

0.8

R05

30K

6.9

C-10

10W

48.0

9.5

0.8

R05

43K

9.3

C-15

15W (25

48.0

12.5

1.0

R05

43K

16.2

C-20

20W (25

63.5

12.5

1.0

R10

56K

21.0

* For resistance values less than R10 and tolerance less than ±2%, please measure resistance over centered ength LM.

• Resistance values < 1R0 and tolerance < 5% are wound on ceramic substrate.

A bead of potting compound may be observed at the point where the termination emerges.

∆

HCA SERIES

WIRE WOUND

RESISTORS

CERAMIC

ENCASED

TYPE

HCA/

HCV

HTR

TYPE

POWER

RATING

70°C

DIMENSIONS (mm)

RESISTANCE

RANGE

TYPICAL

WEIGHT

PER PC

(gms)

min max

CV-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

R05

30K

10.0

CV-10

10W

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

R05

43K

13.3

CV-15 15W (25

C) 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

R05

43K

22.1

CV-20 20W (25

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

R10

56K

26.4

• 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.

d±0.1

HCV SERIES

PHYSICAL CONFIGURATION

e : info@htr-india.com

www.htr-india.com

Rev Date : 22/11/2016

ELECTRICAL CHARACTERISTICS / DATA

Power Rating (Rated Ambient Temperature)

Upto 10W, full power dissipation at 70 °C and 15W / 20W full power

dissipation at 25°C and linearly derated to zero at +275 °C

(See Derating curve above)

Operating Temperature Range (Ambient)

-55°C to +275°C with suitable derating as per Derating Curve

Voltage Rating / Limiting Voltage / Max Working Voltage

V = PxR

Maximum Overload Voltage

Varies depending on resistance value, duration of over load and

type of pulse waveform (contact factory for details)

Resistance Tolerances Available JIS- C - 5202 para 5.1

±10% (K) ; ±5% (J) ; ±3% (H) ; ±2% (G) and ±1% (F)

PARAMETER/PERFORMANCE TEST & TEST METHOD

PERFORMANCE REQUIREMENTS

WIRE WOUND

RESISTORS

CERAMIC

ENCASED

TYPE

HCA/

HCV

ELECTRICAL AND ENVIRONMENTAL CHARACTERISTICS / DATA

MECHANICAL SPECIFICATIONS

Short Time Overload

JIS - C - 5202 Para 5.5

∆

R ± [2% + R05]

Upto 3W - condition A (RV x 2.5 for 5 secs)

5W and above - condition B (voltage

corresponding to 10 times power for 5 secs)

Dielectric Withstanding

JIS - C - 5202 Para 5.7

∆

R ± [1% + R05] (No flashover,

Voltage / Voltage Proof

Condition F (Limiting Voltage x 2 or 500V)

arcing or insulation breakdown)

Temperature Co-efficient

JIS - C - 5202 Para 5.2

± 90 ppm/°C [>10R]

of Resistance

± 80 ppm/°C [<10R]

± 200 ppm/°C [<R10]

Insulation Resistance

JIS - C - 5202 Para 5.6 (condition F)

>1000M

Ω

(min)

Pulse Overload /

JIS - C - 5202 Para 5.8 (Limiting Voltage x 4)

∆

R ± [2% + R05]

Intermittent Overload

1 sec on / 25 off 10,000 cycles ± 200 cycles

Endurance - under load

JIS - C - 5202 Para 7.9 1000 hours at 40°C ±2°C, 95% R.H

∆

R ± [5% + R05]

with humidity

with limiting voltage (1.5 hours on / 0.5 hours off)

Load Life

JIS - C - 5202 Para 7.10

∆

R ± [5% + R05]

1000 hours at 70°C with limiting voltage

(1.5 hours on/0.5 hours off)

Temperature Cycling

JIS - C - 5202 Para 7.4

∆

R ± [2% + R05]

[Room Temperature

-55°C

Room Temperature

155°C

Room Temperature for 5 cycles]

Damp Heat (Steady State)

JIS - C - 5202 Para 7.5

∆

R ± [3% + R05]

Solvent Resistance

JIS - C - 5202 Para 6.9 Solvent A - IPA for 60 secs ±10 secs No effect on case filling or marking

Pull Test / Robustness of

Direct Load for 15 secs 2 to 4.5 kgs

No effect

Terminations

depending on size

Solderability

JIS - C - 5202 Para 6.5

∆R ± [1% + R05] Continuous and

satisfactory (95% Min coverage)

PARAMETER/PERFORMANCE TEST

TEST METHOD- DETAILS

PERFORMANCE REQUIREMENTS

PARAMETER/PERFORMANCE TEST

TEST METHOD- DETAILS

PERFORMANCE REQUIREMENTS

TYPICAL APPLICATIONS

HCA / HCV series resistors are almost universally used in the far east for almost all radio, TV and industrial equipment applications. 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. Due to very high degree of insulation and low surface temperature, these resistors can be mounted with their bodies relatively

closer to the PCB.

3. These resistors are also commonly referred to in the far east as cement resistors owing to the nature of their construction.

4. In certain markets, these resistors are also wrongly called fusible resistors.
Note :

1. The ceramic cases used may be steatite ceramic or corderite ceramic or high alumina ceramic.

Hence the ceramic cases may be off-white or variations of brown / grey, colours which are inherent to these ceramic material.

2. Types C-10, C-15 and C-20 may have cases with bottom bumps as per international practice.

Series

Type

Packing

Resistance Value

Tolerance

HCA [HCV]

C7 / C7*

Bulk C7 / C7*

100R

CV7 / CV7 *

ORDERING INFORMATION

1. For RoHS version - C7 * ; [CV7 *]

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Rev Date : 22/11/2016