SMH-VB
Series
Large Tubulars
High
Capacitance
Solvent Proof
85 C
Maximum
Temperature
L ARGE TUBUL ARS - 85 C
Actual
Size
SMH-VB
The SMH-VB series capacitors are very high capacitance, radial leaded capacitors designed for use
as power supply input filters. These capacitors have an operating temperature range of 25 C to
85 C and a rated lifetime of 2,000 hours with their full ripple current applied at the maximum rated
operating temperature.
The SMH-VB series capacitors were developed to withstand HCFC cleaning agents for five minutes
by ultrasonic, vapor or immersion. This solvent proof design allows all circuit board components
to be cleaned together, at the same time, without resorting to more expensive epoxy end-sealed
capacitors. Refer to the Mini-Glossary for recommended cleaning conditions.
Summary of Specifications
Radial lead terminals.
Capacitance range: 330 to 470µF.
Voltage range: 160 and 200VDC.
Operating temperature range: 25 C to 85 C.
Leakage current: 0.03CV(µA) or 3mA, whichever is smaller, after 5 minutes at
Standard capacitance tolerance: 20%
Nominal case size (D L): 20 30mm to 22 35mm.
Rated lifetime: 2,000 hours at 85 C with the rated ripple current applied.
20 C.
UNITED CHEMI-CON, INC. 9801 West Higgins Road, Rosemont, Illinois 60018 Phone 847-696-2000 Fax 847-696-9278
243
SMH-VB Series
SMH-VB Specifications
Item
Operating Temperature Range
Rated Voltage Range
Capacitance Range
Capacitance Tolerance
Leakage Current
I
25 to
85 C
Characteristics
160 and 200VDC
330 to 470
F
20% ( M ) at
20 C, 120Hz
20 C.
0.03CV ( A ) or 3mA, whichever is smaller, after 5 minutes at
Where I = Leakage current ( A ), C = Nominal capacitance ( F ) and V = Rated voltage ( V )
Dissipation Factor ( Tan )
At
20 C, 120Hz
160
0.15
200
0.15
Rated Voltage ( V )
Max. Tan
( DF )
Temperature
Characteristics
At 120Hz, impedance ( Z ) ratio between the
the values given below.
Rated Voltage ( V )
Z ( 25 C ) / Z ( 20 C )
160
4
200
4
25 C value and
20 C value shall not exceed
Ripple Current Multipliers
Refer to Section 4 of the
Mini-Glossary for explanation
of Ripple Current Multipliers.
Ambient Temperature ( C )
≤
45 C
1.73
60 C
1.50
70 C
1.32
85 C
1.00
L ARGE TUBUL ARS - 85 C
Frequency (Hz )
DC Rated Voltage
160 and 200V
50Hz
0.81
120Hz
1.00
300Hz
1.17
1kHz
1.32
10kHz
1.45
50kHz
1.50
SMH-VB
Load Life
The following specifications shall be satisfied when the capacitors are restored to 20 C after
subjecting them to the DC rated voltage for 2,000 hours at 85 C with the rated ripple current
applied. The sum of DC voltage and peak AC voltage must not exceed the full rated voltage of
the capacitors.
Capacitance change:
≤
20% of initial measured value
Tan ( DF )
:
≤
200% of initial specified value
Leakage current
:
≤
initial specified value
Shelf Life
The following specifications shall be satisfied when the capacitors are restored to 20 C after
exposing them for 1,000 hours at 85 C without voltage applied. The rated voltage shall be
applied to the capacitors for a minimum of 30 minutes, at least 24 hours and not more than
48 hours before the measurements.
Capacitance change:
≤
20% of initial measured value
Tan ( DF )
:
≤
200% of initial specified value
Leakage current
:
≤
500% of initial specified value
Others
Satisfies characteristic W of JIS C5141
Part Numbering System for SMH Series
SMH
200
VB
331
M
22X35
When ordering, always specify complete catalog number for SMH Series.
LL
Lead Length: LL is Standard.
Case Code: See Case Sizes in Tables.
Capacitance Tolerance: M = 20%
Capacitance Value: Expressed in microfarads. The first two digits are
significant figures, and the third digit indicates the number of zeros
for capacitance of 100 F or more. R indicates the decimal point for
capacitance less than 100 F (e.g. R33 = .33 F; 3R3 = 3.3 F;
33R = 33 F; 331 = 330 F; 332 = 3,300 F; 333 = 33,000 F ).
Lead Configuration: VB = Radial Lead Terminals.
DC Rated Voltage: Expressed in Volts (e.g. 200 = 200WVDC).
Series Name: Indicates Basic Capacitor Design.
244
UNITED CHEMI-CON, INC. 9801 West Higgins Road, Rosemont, Illinois 60018 Phone 847-696-2000 Fax 847-696-9278
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