WIMA DC-LINK HC

Metallized Polypropylene (PP) Capacitors for DC-Link Applications.

Capacitances from 140 µF to 8250 µF.
Rated Voltages from 450 VDC to 1500 VDC.

Special Features

Very high volume/capacitance ratio
Self-healing, internal safety disconnector
Safe contact configurations by screwable plates
Dry construction without electrolyte or oil
Very low dissipation factor
Negative capacitance change versus temperature
Very low dielectric absorption
According to RoHS 2015/863/EU
Customer-specific tabs, capacitances or voltages on request
105° C version on request

Typical Applications
As intermediate circuit capacitor e.g. in high power converter technology

Construction

Dielectric: Polypropylene (PP) film
Capacitor electrodes: Vacuum-deposited
Encapsulation: Solvent-resistant, flame-retardant plastic case with PU seal.
Terminations: Tinned plates, customized plate configurations are possible.
Marking: Colour: Black. Marking: Gold.

Internal construction:

Construction WIMA DC-LINK HC capacitors

Electrical Data
Capacitance range: 140 µF to 8250 µF
Rated voltages: 450VDC, 900VDC, 1500VDC
Capacitance tolerance: ±10%
Operating temperature range: -55°C to +85°C (+105°C on request)
Insulation resistance at +20°C: > 30000 sec (MΩ x µF)
Measuring voltage: 100V/1 min.
Self-inductance: < 50 nH depending on tab configuration
Test voltage: 1.5 Ur, 10 sec
Dielectric absorption: 0.05%
Reliability: Operational life > 100 000 hours at 70°C hot spot. Failure rate < 50 fit (hot spot < 70°C)
Derating: A derating factor of 1.35% per K must be applied from +70°C for AC currents (Irms).
Standards: in accordance with IEC 61071
Mounting Recommendation
Excessive mechanical strain, e.g. pressure or shock onto the capacitor body, is to be avoided during mounting and usage of the capacitors. When fixing the capacitor the screw torque is to be limited to max. 5 Nm.
Packing
Transportation-safe packing in cardboard boxes.