HMV

S E R I E S

SPACE SAVER

WIRE WOUND RESISTORS

CERAMIC ENCASED TYPE

Slim Type Vertical Mounting

Especially designed for crowded PCB's
Ceramic stand-off's

PHYSICAL CONFIGURATION

HTR

TYPE

POWER
RATING

at 70°C

W

+1

H

+1

D

+1

P

+1

DIMENSIONS (mm)

TYPICAL

WT.

PER PC

(gms)

RESISTANCE

RANGE

min       max

M2

2.5W

11.0 20.5

7.0

5.0

R10

5K0

3.8

M4

4W

12.0 25.0

7.0

5.0

R10

8K7

5.0

LV5

5W

13.0 25.5

9.0

5.0

R10

13K

6.4

M7

7W

12.5 38.0

9.0

5.0

R10

18K

7.5

LV10

10W

16.0 35.0 12.0

7.5

R10

26K

15.5

ELECTRICAL AND ENVIRONMENTAL CHARACTERISTICS / DATA

TM

Inorganic Fire

Retardant Encapsulant

Flame Proof High

Temperature

Ceramic Case With

Stand-off Legs

Alloy Wire Wound Element

On Fibreglass Substrate/

Ceramic Substrate

Test

Resistance tolerance

+ 10% [K]; + 5% [J]; +3% [H];
+2% [G]; +1% [F]

Rated ambient temperature at 70°C full power dissipation
[see derating curve]

Temperature co-efficient

+ 80 to + 550 ppm/ °C
(depending upon resistance value)

Short time overload

Max 

D

 R+2%[+R05]

Moisture resistance

Max 

D

 R+3%[+R05]

Load life

Max 

D 

R+5%[+R05]

Ambient operating

-40°C to +155°C

temperature range.

Insulation resistance

> 1000 M [minimum]

Performance Requirements

100

60

20

0

70°C

20

60

100

140

180

220

260 275

R

a

te

d

 D

is

si

p

a

ti

o

n

 [

%

]

Ambient Temperature [°C]

DERATING CURVE

W

f

 0.8 +0.05

P

H

4.5 +2-1

D

H

M

V

WIRE WOUND RESISTORS

CERAMIC ENCASED TYPE

HMV

TYPICAL APPLICATIONS

TEMPERATURE RISE AT SOLDER JOINT (AT FULL POWER)

ORDERING INFORMATION

M-7

1K0

J

RESISTANCE VALUE

TOLERANCE

HTR TYPE 

SERIES

The HMV series originated in the far east to provide low cost high power resistors, which could be vertically 
mounted firmly on to a PCB with stability provided by its ceramic legs.

These resistors find wide application in colour TV's, VCR's, Printers, Fax Machines, Inverters and Power 
supplies.

Due to the nature of their construction, they can withstand surges quite efficiently. Please refer to 

In case a tailor-made pulse resistor is required, please refer to 

 and provide 

data accordingly.

“Understanding pulse & over load capability of wire wound resistors”.

"Questionnaire of data required"

TM

150

100

50

0

20

40

Te

m

p

e

ra

tu

re

 r

is

e

 (

°

C

)

60

80

100

120

5W

4W

2.5W

Temperature rise chart

Load Factor (%)

7W/10W

200

250

Measuring Point

Note :  1)

Type LV10 can be provided with 1.0mm leads if required, please specify at the time of placing of the 
order.

2)

Due to recent technological advances, the ceramic cases used may be steatite ceramic or 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.