Datasheet

MKT371, MKT372, MKT373
Vishay BCcomponents
DC Film Capacitors
MKT Radial Potted Type
www.vishay.com For technical questions, contact: [e-mail]
Document Number: 28109
120 Revision: 22-Dec-10
SUB-GROUP C2
4.11 Damp heat steady state 56 days, 40 °C, 90 % to 95 % RH
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
after removal from testchamber
No breakdown of flash-over
Visual examination No visible damage
Legible marking
Capacitance |ΔC/C| ≤ 5 % of the value measured in
4.11.1.
Tangent of loss angle Increase of tan δ ≤ 0.005
Compared to values measured in 4.11.1
Insulation resistance ≥ 50 % of values specified in section
“Insulation Resistance” of this specification
SUB GROUP C3
4.12 Endurance Duration: 2000 h
1.25 x U
RDC
at 85 °C
0.8 x 1.25 U
RDC
at 105 °C
4.12.1 Initial measurements Capacitance
Tangent of loss angle:
For C ≤ 470 nF at 100 kHz
for 470 nF < C ≤ 10 µF at 10 kHz
for C > 10 µF at 1 kHz
4.12.5 Final measurements Visual examination No visible damage
Legible marking
Capacitance |ΔC/C| ≤ 5 % compared to values measured
in 4.12.1
Tangent of loss angle Increase of tan δ
≤ 0.005 at 85 °C (370 and 371)
≤ 0.010 at 100 °C (370 and 371)
≤ 0.005 (372 and 373) for: C ≤ 100 nF or
≤ 0.010 for: 100 nF < C ≤ 220 nF or
≤ 0.015 for: 220 nF < C ≤ 470 nF and
≤ 0.003 for: C > 470 nF
Compared to values measured in 4.12.1
Insulation resistance ≥ 50 % of values specified in section
“Insulation Resistance” of this specification
SUB-GROUP C4
4.13 Charge and discharge 10 000 cycles
Charged to U
RDC
Discharge resistance:
4.13.1 Initial measurements Capacitance
Tangent of loss angle:
For C ≤ 470 nF at 100 kHz
for 470 nF < C ≤ 10 µF at 10 kHz
for C > 10 µF at 1 kHz
4.13.3 Final measurements Capacitance |ΔC/C| ≤ 3 % compared to values measured
in 4.13.1
Tangent of loss angle Increase of tan δ
≤ 0.005 for: C ≤ 100 nF or
≤ 0.010 for: 100 nF < C ≤ 220 nF or
≤ 0.015 for: 220 nF < C ≤ 470 nF and
≤ 0.003 for: C > 470 nF
Compared to values measured in 4.13.1
Insulation resistance ≥ 50 % of values specified in section
“Insulation Resistance” of this specification
SUB-CLAUSE NUMBER AND TEST CONDITIONS PERFORMANCE REQUIREMENTS
R
U
R
C 2.5 dU dt⁄()
R
××
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