High Voltage Doorknob Capacitor

 

USAGE

Doorknob capacitor is one kind of  high voltage ceramic capacitor, which mainly used in high peak current and high repetition rate circuit.

Such as: high voltage doubler, voltage protection, decoupling circuits, laser generator
switching circuits, welding equipment, exchange limit, DC storage
high-frequency coupling, AC, and DC filtering applications

FEATURES

* Low dissipation factor of 0.1 % at 20kHz to 1000kHz
* N4700 (T3M) Class 1, strontium-based ceramic dielectric
* Negligible piezoelectric/electrostrictive effect
* Screw terminal mounting

DIELECTRIC STRENGTH

150 % of rated voltage in oil, charging currently limited to 5mA

DISSIPATION FACTOR tan
N4700: ≤ 1 x 10-3 (1 kHz)

INSULATION RESISTANCE
Min. 200 000 MΩ at 25 °C

CORONA LIMIT
< 5 pC at rated AC voltage

OPERATING TEMPERATURE RANGE
– 30 °C to + 85 °C : N4700,Y5S,Y5T,Y5U,Y5V
– 30 °C to + 125 °C : X7R

APPLICATIONS
* High voltage power supplies
* CO2 lasers
* X-ray equipment
* Welding equipment
* Medical industrial equipment

CAPACITANCE RANGE
140 pF to 15000 pF

RATED VOLTAGE
* 10 000 VDC (4000 VRMS)
* 15 000 VDC (6000 VRMS)
* 20 000 VDC (8000 VRMS)
* 30 000 VDC (10 000 VRMS)
* 40 000 VDC (13 000 VRMS)

CERAMIC DIELECTRIC
N4700 (Class 1)

MATERIAL
Capacitor elements made from Class 1 ceramic in a molded epoxy case.
Screw terminals: brass, silver plated.

POWER DISSIPATION
Limit to 25 °C rises above ambient, measured on case

CAPACITANCE TOLERANCES
± 10 % , ± 20 %