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Piezoelectrics Ceramics Properties & Applications Manual


Capacitors


 High Voltage Capacitors Ceramic 10 – 40kVdc K3300 Dielectric

Morgan Electro Ceramics has long experience of the manufacture of ceramic capacitors for high-voltage dc and power frequency applications.

Test Facilities available in addition to the standard and power factor equipment include:

  • Power frequency testing, 50Hz, up to 250kV
  • Impulse testing up to 600kVpk
  • Partial discharge testing up to 120kV
  • DC testing up to 60kV

The materials used are mainly high-K Type 2 ceramics with dielectric constants from 1000 to 10,000. These materials show significant and non-linear changes in dielectric constant with temperature and voltage and also exhibit changes with time, compared to Type 1 material s.

Applications include

  • DC power supplies
  • Laser pulse circuitry
  • Electrostatic copying machines

In addition to the standard products, custom-made components can be supplied with different dimensions and electrical characteristics.

 



Not the product you need? Try these other similar capacitors...

Lower voltage RF Disc
Higher voltage Laser Discharge

Back to main capacitor page

Material Characteristics Units  
EIA Category   Y5T
Dielectric Constant r @ 1kHz, 20°C LV   approx 3300
Dielectric Constant r @ 50Hz, 0.35kV/mm 20°C   approx 5000
Typical Dissipation Factor @ 1kHz 20°C LV % =<1.5
Insulation Resistance @ 500V, 20°C ohm >=1010
Ageing Rate per decade hour % -3
Maximum operating Temperature at full dc rated voltage °C +60
All dimensions in mm, ±1.0mm

Rated Voltage 20kV dc

Type
Cap Value
Test Voltage
1 min dc
Test Voltage
1 min 50Hz
Discharge Free
Test <5pC
øD
L
T
Thread Size
pF±20%
kV
kV
kV 50Hz
mm
mm
mm
mm
07786
440
30
20
6
22
27
8
M4
07787
780
30
20
6
27
27
8
M4
07788
1000
30
20
6
31
27
8
M4
07789
1500
30
20
6
36
27
8
M4
07790
2500
30
20
6
45
27
8
M4
07791
3200
30
20
6
49
27
8
M4

Rated Voltage 30kV dc

Type
Cap Value
Test Voltage
1 min dc
Test Voltage
1 min 50Hz
Discharge Free
Test <5pC
øD
L
T
Thread Size
pF±20%
kV
kV
kV 50Hz
mm
mm
mm
mm
07792
320
45
28
8
22
33
8
M4
07793
570
45
28
8
27
33
8
M4
07794
720
45
28
8
31
33
8
M4
07795
1100
45
28
8
36
33
8
M4
07796
1750
45
28
8
45
33
8
M4
07797
2200
45
28
8
49
33
8
M4

Rated Voltage 40kV dc

Type
Cap Value
Test Voltage
1 min dc
Test Voltage
1 min 50Hz
Discharge Free
Test <5pC
øD
L
T
Thread Size
pF±20%
kV
kV
kV 50Hz
mm
mm
mm
mm
07798
250
60
35
10
22
39
8
M4
07604
340
60
35
10
27
39
8
M4
07610
570
60
35
10
31
39
8
M4
07799
880
60
35
10
36
39
8
M4
07800
1400
60
35
10
45
39
8
M4
07801
1750
60
35
10
49
39
8
M4
07802
2200
60
35
10
56
39
8
M4
07803
3000
60
35
10
66
39
8
M4


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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

If you have a general enquiry we suggest you use our enquiry form.

The information stored in the text and graphics within this web site are
© Morgan Electro Ceramics, 2007.
No information may be used without prior written consent.