DC SUPPORT CAPACITORS

Name: DC Support Capacitors
Brand: Ningbo Gaoyun Electric Co., Ltd. | Power Quality Equipment Manufacturer
SKU: 26138
Availability: InStock

High ripple current DC link capacitors for variable frequency drives and power electronics

DC SUPPORT CAPACITORS

High ripple current DC link capacitors for variable frequency drives and power electronics

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Variable Frequency Drives

DC link smoothing for medium and high power inverter drives.

Uninterruptible Power Supplies

DC support and hold-up energy storage.

Welding & Induction Equipment

High ripple DC bus energy storage.

Renewable Inverters

DC link capacitor for grid-tied solar and storage inverters.

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Quick Specs

Quick Specifications

Parameter	Specification
Rated Voltage (Un)	400 V – 1100 V DC
Capacitance Range	1 mF – 50 mF
Rated Ripple Current	Up to 40 A rms @ 40°C
Dissipation Factor (tanδ)	≤ 0.002
Operating Temperature	-40°C ~ +85°C (center)
Life Expectancy	100,000 hours at rated conditions
Mounting	Screw / bolt terminal, busbar or screw fixation

Typical Applications

Key Features

High Ripple Current — metallized film construction tolerates heavy ripple heating in DC link applications
Low ESR / Low ESL — reduces self-heating and improves transient response
Long Life — self-healing film with self-healing and safety vent design for 100,000 hours
Compact Case — square or circular aluminium case for drive cabinet integration

Why Choose This Product

Technical Data

Parameter	Specification
Rated Voltage (Un)	400 V – 1100 V DC
Capacitance Range	1 mF – 50 mF
Rated Ripple Current	Up to 40 A rms @ 40°C
Dissipation Factor (tanδ)	≤ 0.002
Operating Temperature	-40°C ~ +85°C (center)
Life Expectancy	100,000 hours at rated conditions
Mounting	Screw / bolt terminal, busbar or screw fixation

WORKING PRINCIPLE

Construction

INTERNAL STRUCTURE

MANUFACTURING & QUALITY CONTROL

Manufacturing & Quality Control

Gaoyun Electric operates full-automatic BOPP film winding lines, precision metal spraying and unified epoxy potting workshops, with 100% inspection before delivery in strict accordance with IEC 60831 and GB/T 12747.

Technical Specifications

Typical Applications

Variable Frequency Drives

DC link smoothing for medium and high power inverter drives.

Uninterruptible Power Supplies

DC support and hold-up energy storage.

Welding & Induction Equipment

High ripple DC bus energy storage.

Renewable Inverters

DC link capacitor for grid-tied solar and storage inverters.

DIMENSIONS & CAD DOWNLOADS

Working Principle

The DC support capacitor is connected across the DC bus of a converter, smoothing the pulsating DC voltage produced by the rectifier and supplying instantaneous energy to the inverter during switching transients. Its high ripple current capability prevents excessive internal heating and extends service life.

CERTIFICATIONS