MKT1813
Vishay Roederstein
www.vishay.com
GROUP C INSPECTION REQUIREMENTS
SUB-CLAUSE NUMBER AND TEST
CONDITIONS
PERFORMANCE REQUIREMENTS
SUB-GROUP C1B PART OF SAMPLE
OF SUB-GROUP C1
4.9
Shock
Mounting:
See section “Mounting” of this specification
Pulse shape: Half sine
Acceleration: 490 m/sꢁ
Duration of pulse: 11 ms
4.9.3
Final measurements
Visual examination
Capacitance
No visible damage
|C/C| 3 % of the value measured in 4.6.1
Tangent of loss angle
Increase of tan
0.00ꢀ for: C 100 nF or
0.010 for: 100 nF < C 220 nF or
0.01ꢀ for: 220 nF < C 470 nF and
0.003 for: C > 470 nF
Compared to values measured in 4.6.1
Insulation resistance
As specified in section “Insulation
Resistance” of this specification
SUB-GROUP C1 COMBINED SAMPLE
OF SPECIMENS OF SUB-GROUPS
C1A AND C1B
4.10
Climatic sequence
4.10.2 Dry heat
Temperature: + 100 °C
Duration: 16 h
4.10.3 Damp heat cyclic
Test Db, first cycle
4.10.4 Cold
Temperature: - ꢀꢀ °C
Duration: 2 h
4.10.6 Damp heat cyclic
Test Db, remaining cycles
4.10.6.2 Final measurements
Voltage proof = URDC for 1 min within 1ꢀ min
after removal from testchamber
No breakdown of flash-over
Visual examination
Capacitance
No visible damage
Legible marking
|C/C| ꢀ % of the value measured in
4.4.2 or 4.9.3
Tangent of loss angle
Increase of tan
0.007 for: C 100 nF or
0.010 for: 100 nF < C 220 nF or
0.01ꢀ for: 220 nF < C 470 nF and
0.00ꢀ for: C > 470 nF
Compared to values measured in
4.3.1 or 4.6.1
Insulation resistance
ꢀ0 % of values specified in section
“Insulation resistance” of this specification
SUB-GROUP C2
4.11
Damp heat steady state
ꢀ6 days, 40 °C, 90 % to 9ꢀ % RH
4.11.1 Initial measurements
Revision: 04-Jul-13
Capacitance
Tangent of loss angle at 1 kHz
Document Number: 26013
13
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