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BFC247026683

P1-P3P4-P6P7-P9P10-P12P13-P14
www.vishay.com For technical questions, contact: dc-film@vishay.com
Document Number: 28112
10 Revision: 07-Mar-14
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
MKT470
Vishay BCcomponents
Metallized Polyester Film Capacitors
MKT Radial Potted Type
APPLICATION NOTE AND LIMITING CONDITIONS
These capacitors are not suitable for mains applications as across-the-line capacitors without additional protection, as described
hereunder. These mains applications are strictly regulated in safety standards and therefore electromagnetic interference
suppression capacitors conforming the standards must be used.
For capacitors connected in parallel, normally the proof voltage and possibly the rated voltage must be reduced. For information
depending of the capacitance value and the number of parallel connections contact: dc-film@vishay.com
To select the capacitor for a certain application, the following conditions must be checked:
1. The peak voltage (U
P
) shall not be greater than the rated DC voltage (U
RDC
).
2. The peak-to-peak voltage (U
P-P
) shall not be greater than 22 x U
RAC
to avoid the ionization inception level.
3. The voltage pulse slope (dU/dt) shall not exceed the rated voltage pulse slope in an RC-circuit at rated voltage and without
ringing. If the pulse voltage is lower than the rated DC voltage, the rated voltage pulse slope may be multiplied by U
RDC
and
divided by the applied voltage.
For all other pulses following equation must be fulfilled:
T is the pulse duration.
The rated voltage pulse slope is valid for ambient temperatures up to 85 °C. For higher temperatures a derating factor of 3 %
per K shall be applied.
4. The maximum component surface temperature rise must be lower than the limits (see graph “Max. allowed component
temperature rise”).
5. Since in circuits used at voltages over 280 V peak-to-peak the risk for an intrinsically active flammability after a capacitor
breakdown (short circuit) increases, it is recommended that the power to the component is limited to 100 times the values
mentioned in the table: “Heat Conductivity”
6. When using these capacitors as across-the-line capacitor in the input filter for mains applications or as series connected with
an impedance to the mains the applicant must guarantee that the following conditions are fulfilled in any case (spikes and
surge voltages from the mains or line card supply included).
Voltage Conditions for 6 Above
ALLOWED VOLTAGES
T
amb
85 °C 85 °C < T
amb
100 °C 100 °C < T
amb
125 °C
Maximum continuous RMS voltage U
RAC
0.8 x U
RAC
0.5 x U
RAC
Maximum temperature RMS-overvoltage (< 24 h) 1.25 x U
RAC
U
RAC
0.625 x U
RAC
Maximum peak voltage (V
O-P
) (< 2 s)
1.6 x U
RDC
1.3 x U
RDC
0.8 x U
RDC
2
dU
dt
--------


2
0
T
dt U
Rdc
dU
dt
--------


rated
Document Number: 28112 For technical questions, contact: dc-film@vishay.com
www.vishay.com
Revision: 07-Mar-14 11
MKT470
Metallized Polyester Film Capacitors
MKT Radial Potted Type
Vishay BCcomponents
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
INSPECTION REQUIREMENTS
General Notes:
Sub-clause numbers of tests and performance requirements refer to the “Sectional Specification, Publication IEC 60384-2 and
Specific Reference Data”.
Group C Inspection Requirements
SUB-CLAUSE NUMBER AND TEST CONDITIONS PERFORMANCE REQUIREMENTS
SUB-GROUP C1A PART OF SAMPLE
OF SUB-GROUP C1
4.1 Dimensions (detail) As specified in chapters “General Data” of this
specification
4.3.1 Initial measurements Capacitance
Tangent of loss angle for:
C 10 nF at 1 MHz
10 nF < C 470 nF at 100 kHz
C > 470 nF at 10 kHz No visible damage
4.3 Robustness of terminations Tensile: Load 10 N; 10 s
Bending: Load 5 N; 4 x 90°
4.4 Resistance to soldering heat Method: 1A
Solder bath: 280 °C ± 5 °C
Duration: 10 s
4.14 Component solvent resistance Isopropylalcohol at room temperature
Method: 2
Immersion time: 5 min ± 0.5 min
Recovery time: Min. 1 h, max. 2 h
4.4.2 Final measurements Visual examination No visible damage
Legible marking
Capacitance C/C| 2 % of the value measured initially
Tangent of loss angle Increase of tan
0.005 for: C 10 nF or
0.003 for: 10 nF < C 470 nF or
0.002 for: C > 470 nF
Compared to values measured in 4.3.1
SUB-GROUP C1B PART OF SAMPLE
OF SUB-GROUP C1
4.6.1 Initial measurements Capacitance
Tangent of loss angle for:
C 10 nF at 1 MHz
10 nF < C 470 nF at 100 kHz
C > 470 nF at 10 kHz
4.6 Rapid change of temperature A = - 55 °C
B = + 125 °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
www.vishay.com For technical questions, contact: dc-film@vishay.com
Document Number: 28112
12 Revision: 07-Mar-14
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
MKT470
Vishay BCcomponents
Metallized Polyester Film Capacitors
MKT Radial Potted Type
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/s²
Duration of pulse: 11 ms
4.9.3 Final measurements Visual examination No visible damage
Capacitance C/C| 5 % for w = 2.5 mm or
C/C| 3 % for w > 2.5 mm of the value
measured in 4.6.1
Tangent of loss angle Increase of tan :
0.005 for: C 10 nF or
0.003 for: 10 nF < C 470 nF or
0.002 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: + 125 °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 test chamber
No breakdown or flash-over
Visual examination No visible damage
Legible marking
Capacitance C/C| 5 % of the value measured in
4.4.2 or 4.9.3
Tangent of loss angle Increase of tan :
0.008 for: C 10 nF or
0.005 for: 10 nF < C 470 nF or
0.003 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-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 test chamber
No breakdown or flash-over
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 for: C 470 nF or
0.003 for: C > 470 nF
Compared to values measured in 4.11.1
Insulation resistance 50 % of values specified in section
“Insulation Resistance” of this specification
SUB-CLAUSE NUMBER AND TEST CONDITIONS PERFORMANCE REQUIREMENTS
P1-P3P4-P6P7-P9P10-P12P13-P14

BFC247026683

Mfr. #:
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Manufacturer:
Vishay
Description:
Film Capacitors .068uF 5% 100volts
Lifecycle:
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