BFC237321335 Datasheet, PDF (12/14 Pages) Vishay Siliconix – DC Film Capacitors MKT Radial Potted Type

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MKT371
Vishay BCcomponents
GROUP C INSPECTION REQUIREMENTS
SUB-CLAUSE NUMBER AND TEST
SUB-GROUP C1 COMBINED SAMPLE 
OF SPECIMENS OF SUB-GROUPS 
C1A AND C1B
4.10 Climatic sequence
CONDITIONS
PERFORMANCE REQUIREMENTS
4.10.2 Dry heat
Temperature: + 105 °C
Duration: 16 h
4.10.3 Damp heat cyclic
Test Db, first cycle
4.10.4 Cold
Temperature: - 55 °C
Duration: 2 h
4.10.6 Damp heat cyclic
Test Db, remaining cycles
4.10.6.2 Final measurements
Voltage proof = U_RDC for 1 min within 15 min No breakdown of flash-over
after removal from testchamber
Visual examination
No visible damage
Legible marking
Capacitance
|C/C|  3 % of the value measured in 
4.4.2 or 4.9.3
Tangent of loss angle
Increase of tan  
 0.010
Compared to values measured in 4.3.1 or
4.6.1
SUB-GROUP C2
4.11 Damp heat steady state
Insulation resistance
56 days, 40 °C, 90 % to 95 % RH
 50 % of values specified in section
“Insulation Resistance” of this specification
4.11.1 Initial measurements
Capacitance
Tangent of loss angle at 1 kHz
4.11.3 Final measurements
Voltage proof = U_RDC for 1 min within 15 min No breakdown of flash-over
after removal from testchamber
Visual examination
No visible damage
Legible marking
Capacitance
|C/C|  5 % of the value measured in 4.11.1.
Tangent of loss angle
Increase of tan   0.005
Compared to values measured in 4.11.1
SUB GROUP C3
4.12 Endurance
Insulation resistance
Duration: 2000 h
1.25 x U_RDC at 85 °C
0.8 x 1.25 U_RDC at 105 °C
 50 % of values specified in section
“Insulation Resistance” of this specification
Revision: 21-Nov-12
12
Document Number: 28109
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