Storage Conditions for Through-Hole Film Products

Storage Conditions
for Through-Hole Technology (THT)
Film & Paper Capacitors
All KEMET Through-Hole Technology (THT) Film & Paper Capacitors change their characteristics
according to the environmental conditions in which they operate. In normal conditions a variation in the
electrical parameters (capacitance and dissipation factor values) occurs due to the ambient temperature
and the amount of moisture contained in the air surrounding the components. The variation depends
mainly on the type of dielectric and the material used for the coating.
Avoid to store the capacitors in places where the environmental conditions differ from the following:

Storage time: ≤ 24 months from the date marked on the label glued to the package.

Temperature: -40 to 80°C

Humidity:
≤ 70%
≤ 85%
absent
- Average per year:
- For 30 full days randomly distributed throughout the year:
- Dew:
These levels of humidity must be reduced according to the ambient temperature on the
basis of the graph below.
MAX. HUMIDITY
100
30 days
Relative Humiditi [%]
90
annual average
80
70
60
50
40
30
20
10
0
-40
-20
0
20
40
60
80
Temperature [°C]