WIMA Snubber FKP Capacitors

Products:

SMD Capacitors

Capacitors in PCM 2.5 mm

Capacitors in PCM 5 mm

Film/Foil Capacitors in PCM 7.5 - 15 mm

Metallized Capacitors in PCM 7.5 - 37.5 mm

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Snubber FKP Capacitors for High Pulse Applications with Metal Foil Electrodes, Schoopage Contacts and Self-Healing Internal Series Connection

Special Features

High pulse duty
Self-healing
Particularly reliable contact configurations:

4-lead versions and screwable plate

connections
Internal series connection
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.
IGBT-applications

Construction

Dielectric:
Polypropylene (PP) film
Capacitor electrodes:
Aluminium foil and single-sided metallized plastic film
Internal construction:

Encapsulation:
Solvent-resistant, flame-retardent plastic case with epoxy resin seal, UL 94 V-0
Terminations:
Tinned wire or plates
Marking:
Colour: Red. Marking: Black. Epoxy resin seal: Red

Electrical Data

Capacitance range:
0.01 µF to 2.2 µF
Rated voltages:
630VDC, 1000VDC, 1600VDC, 2000VDC, 3000VDC, 4000VDC
Capacitance tolerances:
±20%, ±10%, ±5% (other tolerances are available subject to special enquiry)
Operating temperature range:
-55°C to +100°C
Climatic test category:
55/100/56 in accordance with IEC
Insulation resistance at +20°C:
C < 0.33 µF: > 1 x 10⁵ M
(mean value: 5 x 10⁵ M)
C > 0.33 µF: > 30000 sec (MxµF)
(mean value: 100000 sec)
Measuring voltage: 100V/1 min.

Test voltage:
L < 41.5: 1.6 Ur, 2 sec
L = 41.5: 1.4 Ur, 2 sec
L = 56 : 1.2 Ur, 2 sec
Dissipation factors at +20°C: tan

Voltage derating:
A voltage derating factor of 1.35% per K must be applied from +85°C for DC voltages and from +75°C for AC voltages.
Reliability:
Operational life > 300000 hours
Failure rate < 1 fit (0.5 x Ur and 40°C)
Specific dissipation:

Box size* W x H x L in mm	Specific dissipation in Watts per K above the ambient temperature
19x31x56 23x34x56 27x37.5x56 33x48x56 37x54x56	0.068 0.079 0.092 0.122 0.142

* other box sizes

Graphs:

Versions:

at f	C < 0.1 µF	0.1 µF < C < 1.0 µF	C > 1.0 µF
1kHz 10kHz 100kHz	< 3 x 10^-4 < 4 x 10^-4 < 15 x 10^-4	< 3 x 10^-4 < 6 x 10^-4 -	< 3 x 10^-4 - -

Maximum pulse rise time: for pulses equal to the rated voltage

Capacitance µF	max. pulse rise time V/µsec at T_A < 40°C
Capacitance µF	630VDC	1000VDC	1600VDC	2000VDC	3000VDC	4000VDC
0.01...0.022 0.033...0.068 0.1...0.22 0.33...0.68 1.0...2.2	- 9000 9000 5000 1600	11000 9000 9000 5000 2000	11000 9000 9000 5000 -	11000 9000 9000 5000 -	11000 9000 9000 5000 -	11000 9000 9000 5000 -

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 plates the screw torque is to be limited to max. 5Nm.

Example for ordering / Part number:

Transportation-safe packing in cardboard boxes.

Packing units

pcs. per packing unit

18
26.5
31.5
41.5

100
100
100
100

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