Datasheet

Document Number: 28109 For technical questions, contact: [e-mail]
www.vishay.com
Revision: 22-Dec-10 119
MKT371, MKT372, MKT373
DC Film Capacitors
MKT Radial Potted Type
Vishay BCcomponents
SUB-GROUP C1B PART OF SAMPLE
OF SUB-GROUP C1
4.6.1 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
No visible damage
4.6 Rapid change of temperature θA = - 55 °C
θB = + 105 °C
5 cycles
Duration t = 30 min
4.7 Vibration Visual examination
Mounting:
See section “Mounting” of this specification
Procedure B4
Frequency range: 10 Hz to 55 Hz
Amplitude: 0.75 mm or
Acceleration 98 m/s²
(whichever is less severe)
Total duration 6 h
No visible damage
4.7.2 Final inspection Visual examination No visible damage
4.9 Shock Mounting:
See section “Mounting” of this specification
Pulse shape: Half sine
Acceleration: 490 m/s²
Duration of pulse: 11 ms
4.9.3 Final measurements Visual examination No visible damage
Capacitance |ΔC/C| ≤ 3 % of the value measured in 4.6.1
Tangent of loss angle Increase of tan δ
≤ 0.010 (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 4.6.1
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: + 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
after removal from testchamber
No breakdown of flash-over
Visual examination No visible damage
Legible marking
Capacitance |ΔC/C| ≤ 3 % of the value measured in
4.4.2 or 4.9.3
Tangent of loss angle Increase of tan δ
≤ 0.010 (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
≤ 0.005 for: C > 470 nF
Compared to values measured in
4.3.1 or 4.6.1
Insulation resistance ≥ 50 % of values specified in section
“Insulation Resistance” of this specification
SUB-CLAUSE NUMBER AND TEST CONDITIONS PERFORMANCE REQUIREMENTS