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The KMA series capacitors are designed for use in ultra miniature
applications, as the nominal height is 7mm. The KMA series also has a rated
lifetime of 1,000 hours at 105°C. Typical applications include video tape
recorders, car audio equipment, and other personal electronic products.
The KMA 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. |
| Item |
Characteristics |
| Operating Temperature Range |
-55 to +105°C |
| Rated Voltage Range |
4 to 63VDC |
| Capacitance Range |
0.1 to 220µF |
| Capacitance Tolerance |
±20% (M) at +20°C, 120Hz |
| Leakage Current |
I = 0.01CV or 3µA, whichever is greater, after 2 minutes at +20°C.
Where I = Leakage current (µA), C = Nominal capacitance (µF) and V = Rated
voltage (V) |
| Dissipation Factor (Tan d) |
At +20°C, 120Hz
| Rated Voltage (V) |
4 |
6.3 |
10 |
16 |
25 |
35 |
50 |
63 |
| Tan d (DF) |
0.33 |
0.22 |
0.19 |
0.16 |
0.14 |
0.12 |
0.1 |
0.08 | |
| Low Temperature Characteristics |
At 120Hz, impedance (Z) ratio between the -25°C or -40°C value and
+20°C value shall not exceed the values given below.
| Rated Voltage (V) |
4 |
6.3 |
10 |
16 |
25 |
35 |
50 |
63 |
| Z (-25°C)/Z (+20°C) |
4 |
4 |
3 |
2 |
2 |
2 |
2 |
2 |
| Z (-40°C)/Z (+20°C) |
10 |
10 |
8 |
6 |
4 |
3 |
3 |
3 | |
| 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
1,000 hours at +105°C. The sum of DC voltage and peak AC voltage must not
exceed the full rated voltage of the capacitors.
Capacitance change : <= ±25± of initial measured value for <=
16V
: <= ±20% of initial measured value for >= 25V
Tan d (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 500 hours at +105°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 : <= ±25% of initial measured value for <=
16V
: <= ±20% of initial measured value for >= 25V
Tan d (DF)
: <= 200% of initial specified value
Leakage current : <= initial
specified value |
| Others |
Satisfies characteristic W of JIS C5141 |
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