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The KRE series capacitors are designed for use in ultra miniature
applications, as the nominal height is 5mm. Some of the applications in which
these capacitors could be used are the following: camera, car audio, mini-audio
sets and other industrial and commercial units where a very low profile product
is required.
The KRE series capacitors were developed to withstand HCFC cleaning agents
for two 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 50VDC |
| Capacitance Range |
0.1 to 100µF |
| 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 |
| Tan d (DF) <= 03 |
-- |
0.29 |
0.25 |
0.21 |
0.17 |
0.15 |
0.13 |
| Tan d (DF) >= 03.5 |
0.3 |
0.27 |
0.23 |
0.19 |
0.15 |
0.13 |
0.11 | |
| 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 |
| Z (-25°C)/Z (+20°C) |
6 |
3 |
3 |
2 |
2 |
2 |
2 |
| Z (-40°C)/Z (+20°C) |
12 |
9 |
7 |
5 |
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 <=
03.5
: <= ±20% of initial measured value for >= 04
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 <=
03.5
: <= ±20% of initial measured value for >= 04
Tan d (DF)
: <= 200% of initial specified value
Leakage current : <= initial
specified value |
| Others |
Satisfies characteristic W of JIS C5141 |
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