WIMA GTO MKP

GTO MKP Capacitors for Pulse Applications with Internal Series Connection.

Capacitances from 1.0 µF to 100 µF.
Rated Voltages from 400 VDC to 2000 VDC.

Special Features

Pulse duty construction
Self-healing
Cylindrical capacitor body with axial screw and thread connections size M6 or M8
Internal series connection from 400VAC
Very low dissipation factor
Negative capacitance change versus temperature
According to RoHS 2015/863/EU

Typical Applications
For high pulse and high frequency applications requiring extremely reliable contacts e.g.

Damping of voltage spikes on GTO-Thyristors

Construction

Dielectric: Polypropylene (PP) film
Capacitor electrodes: Double-sided metallized plastic film
Encapsulation: Solvent-resistant, flame-retardent plastic case with PU seal, UL 94 V-0
Terminations: Axial screw connection M6 or M8
Marking: Colour: Red. Marking: Black on Silver

Internal construction:

GTO MKP: 180VAC, 250VAC
Construction WIMA GTO-MKP capacitors up to 250 VAC

GTO MKP: 400VAC, 450VAC, 500VAC, 550VAC, 600VAC
Construction WIMA GTO-MKP capacitors from 400 VAC

Electrical Data
Capacitance range: 1.0 µF to 100 µF
Rated voltages: 400VDC, 600VDC, 850VDC, 1000VDC, 1200VDC, 1500VDC, 2000VDC
Capacitance tolerances: ±20%, ±10%, ±5%
Operating temperature range: -55°C to +85°C
Climatic test category: 55/085/56 in accordance with IEC
Insulation resistance at +20°C: > 10000 sec (MΩ x µF)
Measuring voltage: 100V/1 min.
Test voltage: 1.2 Ur, 2 sec
Dielectric absorption: 0.05%
Voltage derating: A voltage derating factor of 1.35% per K must be applied from +65°C for DC voltages and from +60°C for AC voltages.
Dissipation factors at +20°C: tanδ
at f C < 20 µF 20 µF < C < 50 µF C > 50 µF
1kHz < 3 x 10-4 < 5 x 10-4 < 8 x 10-4
Reliability: Operational life > 300000 hours. Failure rate < 1 fit (0.5 x Ur and 40°C)
Specific dissipation:
Box size
D x L in mm Specific dissipation in Watts per K above the ambient temperature
60 x 49
70 x 49
80 x 49
90 x 49
90 x 58
90 x 97 0.186
0.231
0.280
0.333
0.364
0.501
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 5Nm.
Packing
Transportation-safe packing in cardboard boxes.