Technical Specifications

For H.V. Compact Series with Average Power Rating 2.6 W - 4.5 W:

RES.

TYPE

DIM.

CODE

OVERALL

DIMENSIONS

VOL.

MAX.

J

MAX.

W

T.T.C.

WT.

A/L

RESISTANCE RANGE

Do

Max

Lo

Max

Lp

Pitch

(v)

   

@25˚C

  

@25˚C

 

(t)

  

  

MIN

  

MAX

UNITS

 

(mm)

(mm)

(mm)

(cm3)

(J)

(W)

(s)

(g)

(cm)

(Ohms)

(Ohms)

AB 058

1911

21

16

11.5 - 13.0

3.1

775

2.75

280

9.0

2.6

1R2

8K2

AB 840

1915

21

20

15.5 - 17.0

4.3

1075

3.25

330

11.5

1.9

1R5

10K0

AB 893

1917

21

22

17.5 - 19.0

4.8

1200

3.50

345

13.0

1.7

1R8

12K0

AB 620

1920

21

25

20.5 - 22.0

5.7

1425

4.00

355

15.0

1.4

2R2

15K0

AB 663

1927

21

32

27.5 - 29.0

7.7

1925

4.75

405

20.0

1.1

2R7

18K0

AB 880

2410

26

15

10.5 - 12.0

4.5

1125

3.75

300

12.5

4.5

0R68

4K7

AB 885

2415

26

20

15.5 - 17.0

6.8

1700

4.50

380

17.5

3.0

1R0

6K8

NOTES

Vol (v) = Volume of Active Material (cm3)

T. T. C. = Thermal Time Constant (t)  (Seconds)


Maximum Working Voltages (V working)

The Maximum Working Voltage levels  can be derived from the appropriate formulae illustrated in the tables below. An example is shown at the foot of this page.

Waveforms are defined in the usual manner: 1.2 / 50 s indicates a rise time to peak value in 1.2 s and an exponential decay to half amplitude in a total time of 50 s.

AB 058

 

IMPULSE / WAVESHAPE

MAX. WORKING VOLTAGE (kV)

(1 / 10 s)

5.50R x ( -1 + √ ( 1 + 4.6 / R ) )

(1.2 / 50 s)

1.10R x ( -1 + √ ( 1 + 23 / R ) )

(10 / 1000 s)

0.0550R x ( -1 + √ ( 1 + 462 / R ) )

(500 / 5000 s)

0.0110R x ( -1 + √ ( 1 + 2308 / R ) )


AB 840

 

IMPULSE / WAVESHAPE

MAX. WORKING VOLTAGE (kV)

(1 / 10 s)

5.50R x ( -1 + √ ( 1 + 6.3 / R ) )

(1.2 / 50 s)

1.10R x ( -1 + √ ( 1 + 31 / R ) )

(10 / 1000 s)

0.0550R x ( -1 + √ ( 1 + 630 / R ) )

(500 / 5000 s)

0.0110R x ( -1 + √ ( 1 + 3148 / R ) )


AB 893

 

IMPULSE / WAVESHAPE

MAX. WORKING VOLTAGE (kV)

(1 / 10 s)

5.50R x ( -1 + √ ( 1 + 7.1 / R ) )

(1.2 / 50 s)

1.10R x ( -1 + √ ( 1 + 36 / R ) )

(10 / 1000 s)

0.0550R x ( -1 + √ ( 1 + 714 / R ) )

(500 / 5000 s)

0.0110R x ( -1 + √ ( 1 + 3568 / R ) )


AB 620

 

IMPULSE / WAVESHAPE

MAX. WORKING VOLTAGE (kV)

(1 / 10 s)

5.50R x ( -1 + √ ( 1 + 8.4 / R ) )

(1.2 / 50 s)

1.10R x ( -1 + √ ( 1 + 42 / R ) )

(10 / 1000 s)

0.0550R x ( -1 + √ ( 1 + 839 / R ) )

(500 / 5000 s)

0.0110R x ( -1 + √ ( 1 + 4197 / R ) )


AB 663

 

IMPULSE / WAVESHAPE

MAX. WORKING VOLTAGE (kV)

(1 / 10 s)

5.39R x ( -1 + √ ( 1 + 11.3 / R ) )

(1.2 / 50 s)

1.08R x ( -1 + √ ( 1 + 57 / R ) )

(10 / 1000 s)

0.0539R x ( -1 + √ ( 1 + 1133 / R ) )

(500 / 5000 s)

0.0108R x ( -1 + √ ( 1 + 5666 / R ) )


AB 880

 

IMPULSE / WAVESHAPE

MAX. WORKING VOLTAGE (kV)

(1 / 10 s)

8.78R x ( -1 + √ ( 1 + 2.6 / R ) )

(1.2 / 50 s)

1.76R x ( -1 + √ ( 1 + 13 / R ) )

(10 / 1000 s)

0.0878R x ( -1 + √ ( 1 + 263 / R ) )

(500 / 5000 s)

0.0176R x ( -1 + √ ( 1 + 1315 / R ) )


AB 885

 

IMPULSE / WAVESHAPE

MAX. WORKING VOLTAGE (kV)

(1 / 10 s)

8.78R x ( -1 + √ ( 1 + 3.9 / R ) )

(1.2 / 50 s)

1.76R x ( -1 + √ ( 1 + 20 / R ) )

(10 / 1000 s)

0.0878R x ( -1 + √ ( 1 + 395 / R ) )

(500 / 5000 s)

0.0176R x ( -1 + √ ( 1 + 1973 / R ) )


 

Worked example :

Consider an AB 620 Resistor with a Resistance Value of 4K7 and waveform of 500 / 5000 s.

V working = 0.0110R x (-1 + √(1 + 4197 / R)) = 19.43 kV

 
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
                     
Home  |  Site Map  |  About HVR  |  Products  |  Applications  |  Agents  |  Contact Us  |  Events
   Copyright HVR International Limited 2015. All Rights Reserved. This page last updated: 17 April, 2013.