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MKP1847 AC Capacitors
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Vishay Roederstein
SUB-CLAUSE NUMBER AND TEST
TYPE TESTS
CONDITIONS
PERFORMANCE REQUIREMENTS
5.13.3
Final measurements
Visual examination
Capacitance ?
tan ? at 10 kHz ?
No puncturing or flashover ?
Self healing punctures are permitted ?
| ? C/C| ? 2.0 % ?
Increase of tan ? ? 0.0150 ?
Compared to values measured in 5.13.0
5.10.0
5.10.1
Initial measurements
Thermal stability test under ?
overload conditions
Capacitance at 1 kHz ?
tan ? at 10 kHz ?
Natural cooling T amb ± 5 °C ?
1.21 x P max. = (U 2 /2) x W 2 x C x tan ? = ?
121 x (I 2 max. /W 2 x C) x tan ? 2 with ?
W 2 = 2 x ? x f 2 ?
for I max. (see specific reference data) ?
f 2 = 10 kHz ?
Duration 48 h ?
5.10.2
5.12
Final measurements
Resonance frequency ?
measurement
Measure the temperature every 1.5 h during
the last 6 h ?
Capacitance ?
tan ? at 10 kHz
Impedance analyser at T amb
Temperature rise < 1 °C ?
| ? C/C| ? 2 % ?
Increase of tan ? ? 1.2 x initial ? + 0.0150
< 0.9 times the value as specified in typical
curve “Resonant frequency” of this
specification
5.15.0
5.15.1
Initial measurements
Endurance test between terminals
Capacitance at 1 kHz ?
tan ? at 10 kHz ?
Sequence ?
1.25 x U N at T max. = 85 °C ?
1.0 x U N at T max. = 105 °C ?
Duration 500 h ?
1000 x discharge at 1.4 x ? (maximum
repetitive peak current in continuous
operation) ?
1.25 x U N at T max. = 85 °C ?
1.0 x U N at T max. = 105 °C ?
5.15.2
Final measurements
Duration 500 h ?
?
Capacitance ?
tan ?
| ? C/C| ? 3 % ?
Increase of tan ? ? 0.0150 ?
Compared to values measured in 5.15.0
5.16.3.0 Initial measurements
5.16.3.1 Destruction test sequence ?
High DC voltage test
High DC voltage test ?
(limited to 200 mA)
High AC voltage test
Capacitance at 1 kHz ?
The capacitors must be put in an oven at
T max. = 105 °C/2 h and cooled down ?
Product enveloped with cheese cloth ?
3 x U NDC with minimum 2000 V DC ?
Duration 1 min ?
Discharge the capacitor ?
Duration 1 min ?
AC RMS voltage = U NDC /2 x ? 2 ?
Duration = 15 s ?
The above sequence shall be repeated until
the test sample capacitance loss 5 % of its
initial measurement in 5.16.3-0. ?
5.16.3.2 Final measurements
Revision: 28-Nov-13
Visual examination
14
No burning of the cheese cloth. ?
The dielectric must withstand the test
sequence conducted.
Document Number: 28172
For technical questions, contact: dc-film@vishay.com
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