WIMA GTO MKP Capacitors

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Overview

GTO MKP

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GTO MKP Capacitors for Pulse Applications with Internal Series Connection

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 2002/95/EC

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
Internal construction:

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

Electrical Data

Capacitance range:
1.0 µF to 100 µF
Rated voltages:
400VDC, 600VDC, 850VDC, 1000VDC, 1200VDC, 1500VDC
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 (MxµF)
(mean value: 50000 sec)
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: tan

Reliability:
Operational life > 300000 hours
Failure rate < 1 fit (0.5 x Ur and
40°C)

Specific dissipation:

Box size W 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

Graphs:

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

Mounting Recommendation

Packing

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.

Example for ordering / Part number:

Transportation-safe packing in cardboard boxes.

Packing units

W	pcs. per packing unit
60 70 80 90	12 8 6 6

W	L		L1	M
60 70 80 90 90 90	49 49 49 49 58 97		55 55 55 55 64 103	M6 M6 M8 M8 M8 M8

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