High Voltage DC Capacitors
High-voltage DC capacitors are designed to handle and store significant amounts of direct current (DC) voltage, making them crucial for applications requiring stable, efficient energy storage and regulation. Our range of high-voltage DC capacitors provides superior performance, with robust construction. Whether dealing with power supply systems, inverters, or energy storage applications, our capacitors ensure reliable, long-lasting performance with excellent voltage stability and minimal energy loss.
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CQ72 MIL SPEC CAPACITORS
Type CQ72 Capacitors offer superior electrical characteristics, coupled with small size and are designed to meet or exceed the requirements of MIL-C-19978/3E. -
SPECIALTY HIGH VOLTAGE CAPACITORS
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CP53/CP54/CP55 MIL Spec Capacitors
TYPE CP53, CP54, and CP55 capacitors are manufactured to meet or exceed the requirements of MIL-C-25/4D. -
BAM High Voltage Capacitors
Type BAM High Voltage Capacitors are designed for filter, bypass, and coupling applications in the low audio frequency range as well as many general DC applications. -
CH84 High Voltage Capacitors
The CH84 High Voltage Capacitor is wound with a compound film dielectric between sheets of aluminum foil, impregnated; epoxy filled, and sealed in a tough plastic case. -
CMP High Voltage Capacitors
CMP High Voltage Capacitors offer superior electrical characteristics coupled with small size and are designed to meet or exceed the requirements of MIL-C-19978/3F. -
CSV Snubber (Commutation) High Voltage Capacitors
Commutation and Snubber high voltage capacitors are designed to be used in high powered Thyristor circuits. -
HR High-Voltage Dry Capacitors
HR-series capacitors feature a wide range of operating temperature from -25 to +100 °C. -
TMV High Voltage Capacitors
TMV Metal Case capacitors are manufactured in accordance to MIL-PRF-39022 standards. TMV capacitors can be used in either DC or AC operation.
Frequently Asked Questions
What are high voltage DC capacitors used for?
High voltage DC capacitors are engineered for demanding power applications such as power supplies, inverters, energy storage, low-frequency filtering, and coupling / bypass circuits. They deliver voltage stability with very low energy loss, so systems run reliably even under high electrical stress.
Which series meet military specifications?
Several series are built to MIL standards. Chicago Condenser’s CQ72 and CMP series meet or exceed MIL-C-19978 requirements, the CP53/CP54/CP55 series is manufactured to MIL-C-25/4D, and the TMV series is produced in accordance with MIL-PRF-39022. These qualifications make them suitable for defense, aerospace, and other high-reliability programs. These capacitors are not QPL Certified.
What is a snubber or commutation capacitor?
CSV snubber and commutation capacitors are designed for high-power thyristor circuits. They suppress voltage spikes and control the rate of voltage rise across switching devices, protecting semiconductors and improving reliability in power-electronics equipment.
What operating temperature range do these capacitors handle?
It varies by series. The CMP High Voltage Capacitors, for example, operate across a wide range of roughly -55°C to +85°C. Product pages contain datasheets with detailed information on the specific voltage, capacitance, and temperature ratings for individual products. We recommend confirming these numbers on the datasheet because ratings differ by construction and dielectric.
Can you build a custom high voltage capacitor for my application?
Yes. In addition to standard catalog series, Chicago Condenser Corporation offers specialty high voltage capacitors designed for unique requirements. If your project needs a specific voltage, capacitance, form factor, or performance profile, contact us and we can help specify or engineer a solution.

