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.

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.