SMH
SNAP MOUNT 85C
United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com 19
SMH Series
SMH Specifications - Snap Mount
Item
Category Temperature Range
40 to
85C for 6.3 to 100VDC;
25 to
85C for 160 to 450VDC
Rated Voltage Range 6.3 to 450VDC
Capacitance Range 56 to 270,000F
Capacitance Tolerance
20% (M) at
20C, 120Hz
Leakage Current I 0.02CV (A ) or 3mA, whichever is smaller, after 5 minutes at
20C.
Where I = Max. leakage current (A ), C = Nominal capacitance (F) and V = Rated voltage ( V )
Dissipation Factor (Tan )At
20C, 120Hz
*
0.15 maximum for 35mm and 40mm diameter.
†
For rated voltages ≤ 63V, values are not valid for case sizes
>
35mm in diameter or
>
50mm in length.
Characteristics
Rated Voltage (V )
Tan (DF ) Max.
†
6.3
0.60
10
0.50
16
0.40
25
0.30
35
0.25
50
0.20
63-100
0.15
160- 250
*
0.10
*
315 - 450
0.15
Low Temperature
Characteristics
At 120Hz, impedance (Z ) ratio between the
25C or
40C value and
20C value shall not
exceed the values given below.
Rated Voltage (V )
Z(
25C)/Z(
20C)
Z(
40C)/Z(
20C)
6.3-16
4
15
25
3
10
35
3
8
50, 63
2
6
80,100
2
5
160- 400
4
—
450
8
—
Rated Ripple Current Multipliers Ambient Temperature (C)
45C
1.73
60C
1.50
70C
1.32
85C
1.00
Frequency (Hz )
DC Rated Voltage
6.3-50V
63-100V
160 - 250V
315-450V
50Hz
0.95
0.92
0.81
0.77
120Hz
1.00
1.00
1.00
1.00
300Hz
1.03
1.07
1.17
1.16
1kHz
1.05
1.13
1.32
1.30
10kHz
1.08
1.19
1.45
1.41
100kHz
1.08
1.20
1.50
1.43
Shelf Life The following specifications shall be satisfied when the capacitors are restored to
20C after
exposing them for 1,000 hours at
85C 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) : ≤ 150% of initial specified value
Leakage current : ≤ initial specified value
Endurance
(Load Life)
The following specifications shall be satisfied when the capacitors are restored to
20C after
subjecting them to DC voltage for 2,000 hours at
85C with the rated ripple current applied.
The sum of the 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
