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Piezoelectrics Ceramics Properties & Applications Manual


Voltage Multiplier Assemblies


These series connected disc capacitors have been developed for use in low power voltage multipliers for high voltage DC generators. These devices find their major application in the manufacture of voltage multipliers for electrostatic paint spraying equipment and their compact form lends itself to their incorporation in hand held electrostatic spray guns.

A number of capacitors are assembled together with intermediate fittings which allow the connection of diodes to be made. Output voltages in excess of 100kVDC can be produced depending on the number of stages.

Voltage ratings of individual discs range from 8 to 1 5kVDC assuming that the quality of encapsulation by the user is sufficient to prevent external breakdown.

A variety of intermediate metal fittings are available and the number of individual capacitors in each stack can be varied to meet customers requirements up to a maximum of 12.

Schematics

Half-Wave Series Multiplier Full-Wave Multiplier

 

  Units K2100 K2500 K2900 K3300 K3800
EIA Category   X7R Z5U Y5U Y5T X7R
Dielectric Constant r @ 1kHz, 20°C LV   approx 2100 approx 2500 approx 3200 approx 3300 approx 3800
Typical Dissipation Factor @ 1kHz 20°C LV % =<2.0 =<0.5 =<1.0 =<1.5 =<1.5
Insulation Resistance @ 500V, 20°C ohm >=1010 >=1010 >=1010 >=1010 >=1010
Ageing Rate per decade hour % -2.5 -2 -3.5 -3 -3

Characteristics - Style A

All Dimensions in mm

Type Cap Value Cap Tol Dielectric Voltage rating N° Discs øD L Tol on L t
  pF %   kV dc   mm mm mm mm
07562 500 ±20 K2100 12 12 12 77.5 ±2.0 4.5
07594 500 ±20 K2100 12 10 12 65 ±1.5 4.5
07575 500 ±20 K2100 12 8 12 52.5 ±1.5 4.5
07852 1000 ±10 K3800 10 12 12 72.0 ±1.0 4.0
07806 480 ±20 K3800 12 8 9.3 52.5 ±1.5 4.5
07805 480 ±20 K3800 12 10 9.3 70 ±1.5 4.5
07551 250 ±20 K2900 12 12 8 83.5 ±2.0 5.0
07566 250 ±20 K2900 12 10 8 70 ±1.5 5.0
07563 250 ±20 K2900 12 6 8 42.5 ±2.0 5.0
07881 250 +30, -0 K3300 10 12 8 73 ±2.0 4.0
07883 250 +40, -0 K3300 10 12 8 70 ±1.0 4.0
07895 250 +40, -0 K3300 10 11 8 64 ±1.5 4.0
07865 250 +30, -10 K3300 10 12 7.3 80 ±2.0 3.9
07854 250 +30, -0 K3300 10 6 8 37 ±2.0 4.0
07866 125 +40, -0 K2100 10 10 7.3 60 ±2.0 4.0

Characteristics - Style B

All Dimensions in mm

Type Cap Value Cap Tol Dielectric Voltage rating N° Discs øD L Tol on L t
  pF %   kV dc   mm mm mm mm
07571 250 ±20 K2900 12 12 8 77 ±2.0 5.0
07581 250 ±20 K2900 12 7 8 45.5 ±1.5 5.0
07592 250 +40, -0 K3300 10 12 8 65 ±2.0 4.0
07817 250 +40, -0 K3300 10 7 8 38.4 ±1.5 4.0
07595 250 +40, -0 K3300 10 10 8 54.5 ±1.5 4.0
07845 250 +40, -0 K3300 10 9 8 49.5 ±1.0 4.0
07816 250 ±20 K2900 12 10 8 64.3 ±1.5 5.0

Characteristics - Style C

All Dimensions in mm

Type Cap Value Cap Tol Dielectric Voltage rating N° Discs øD L Tol on L t
  pF %   kV dc   mm mm mm mm
07807 250 ±10 K3300 10 12 7.3 72 Max 4.0
07742 250 ±20 K2900 12 12 8 86 ±1.0 5.0
07885 250 +40, -0 K3300 10 12 8 74.0 ±1.0 4.0
07903 250 +40, -0 K3300 10 12 8 72.0 Max 4.0
07899 250 ±20 K3300 10 12 8 69.0 ±1.0 4.0
07749 250 +40, -0 K3300 10 10 8 62.0 ±2.0 4.0
07750 270 +40, -0 K3300 10 6 8 39.5 ±1.0 4.2
07822 250 +40, -0 K3300 10 6 8 38.0 ±1.0 4.0
07884 250 +40, -0 K3300 10 5 8 32.0 ±1.0 4.0
07748 250 +40, -0 K3300 10 4 8 26.0 ±1.0 4.0

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All enquiries for this product should be made to:

Morgan Electro Ceramics Ltd 
Vauxhall Industrial Estate, Ruabon, Wrexham, LL14 6HY, England
Telephone: +44 (0)1978 810456
Fax: +44 (0)178 824303
Email: ruabon.sales@morganplc.com

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