High Voltage Capacitor

General Atomics Electromagnetic Systems (GA-EMS) is globally recognized as the leading U.S. developer and manufacturer of advanced high voltage capacitors for DC, pulsed power, high frequency AC, and specialized system applications for defense, commercial, and research systems worldwide.

GA-EMS specializes in creating unique power and energy technologies to meet the most demanding specifications and extreme operating environments. Our expertise in design, manufacturing, and testing enables us to provide the most energy-dense capacitors available today. We have successfully developed record-breaking high energy density capacitors to create pulsed power systems powerful enough to support future railgun applications. In addition, our extensive product portfolio includes all types of film and paper dielectrics, metalized and discrete foil electrodes, oil-filled and dry constructions, and a wide range of packages.

GA-EMS offers innovative capacitor designs for:
• High energy density
• High peak currents
• Low inductance, low ESR
• Wide temperature range
• High mechanical shock
• Greater reliability

In addition to standard designs and a catalog of in-stock capacitor products, GA-EMS also offers customization services to meet specific application requirements and exacting voltage and capacitance specifications. Contact us to discuss your particular needs.

Plastic Case Capacitors

Characteristics

  • Compact designs for High voltage
  • Low inductance
  • Pulsed applications

Specifications

Specifications
Series Type Voltage Capacitance & ESL Key Features
PDS/PDSS Fast Pulse
Capacitors		 100 kV 8 nF – 300 nF
6 nH – 25 nH		 Double-ended plastic case with output terminal rails. Very low
inductance, low ESR. Sub-microsecond pulse rise time to 100 kV.
PM/PD Pulse Discharge &
DC Capacitors		 25 kV – 62 kV 4.5 nF –200 nF
15 nH – 70 nH		 Extended foil, double-ended plastic case capacitors. Designed for
long life and fault tolerance. Shot life > 1x109.
S/SS High Voltage 1 pps
Capacitors		 30 kV – 100 kV 0.04 µF – 1.0 µF
15 nH – 40 nH		 Single-ended plastic case capacitors. Compact design for high
voltage, low inductance, pulsed applications.
DE High Voltage Pulse
Discharge
Capacitors		 5 kV – 50 kV 0.007 µF – 2.0 µF
10 nH – 90 nH		 Extended foil, double-ended plastic case capacitors. Low-loss
dielectric.
SE/SSE High Voltage 1000
pps Capacitors		 30 kV – 80 kV 0.04 µF – 0.15 µF
15 nH – 25 nH		 Extended foil, single-ended plastic case capacitors. Very low
inductance, high rep rate.

Metal Case Capacitors

Characteristics

  • Wide range of capabilities from high peak current microsecond discharges to high energy density
  • Self-healing
  • Long-life designs

Specifications

Specifications
Series Type Voltage Capacitance & ESL Key Features
CMX Self-Healing Energy
Storage Capacitors		 2.8 kV – 13.2 kV 575 µF – 64,000 µF
150 nH – 1,200 nH		 Self-healing metalized film capacitors in welded metal cans. Up to
3.0 J/cc. Designed for millisecond discharge. Standard ratings up
to 13 kV and 255 kJ.
CMF Self-Healing Energy
Storage Capacitors		 5.6 kV – 26 kV 255 µF – 9,500 µF
150 nH – 800 nH		 Self-healing metalized film capacitors in welded metal cans.
Designed for millisecond discharge. Standard ratings to 26 kV and
200 kJ.
C Energy Storage High
Voltage Capacitors		 10 kV – 100 kV 3 µF – 830 µF
35 nH – 100 nH		 Extended foil capacitors in welded metal cans. Standard ratings
up to 100 kV. Low inductance, high peak current. Low profile
bushings.
DM Metalized Capacitors 1 kV – 3 kV 25 µF – 750 µF
75 nH – 200 nH		 Self-healing metalized film capacitors in drawn metal cans.
Designed for industrial rep-rate applications. Peak currents up to
11.6 kA.
DP General Purpose
Pulse Capacitors		 2 kV – 15 kV 2 µF – 185 µF
50 nH – 200 nH		 Extended foil capacitors in drawn metal cans. For pulsed
applications such as lasers, flash lamps and other circuits where
moderate to long life is required.
DQ Defibrillator
Capacitors		 2.1 kV – 5.5 kV 32 µF – 196 µF
65 nH – 200 nH		 Small metalized film capacitors in drawn metal cans. Peak
currents up to 300 A.

Specialized Capacitors

Characteristics

  • Specialized designs
  • High energy density
  • Very High voltage

Specifications

Specifications
Type Voltage Capacitance Key Features
Military (MIL-Spec)
Capacitors 		Contact GA for custom MIL-Spec capacitor designs.
Custom High Voltage
Capacitors		 1 kV – 2 MV 100 pF – 100,000 µF Custom designed to meet your requirements. Current ratings up
to 1 MA.
High Energy Density
Capacitors		 1 kV – 100 kV 25 µF – 64,000 µF For maximum stored energy in the smallest possible volume. Shot
life ratings from 1x103 up to 1x1011.
Very High Voltage
Capacitors 		100 kV – 2 MV 100 pF – 4 µF Capacitance values ranging from microfarads at 100 kV to
nanofarads at 1 MV.