Cautions and warnings
Do not exceed the upper category temperature (UCT).
Do not apply any mechanical stress to the capacitor terminals.
Avoid any compressive, tensile or flexural stress.
Do not move the capacitor after it has been soldered to the PC board.
Do not pick up the PC board by the soldered capacitor.
Do not place the capacitor on a PC board whose PTH hole spacing differs from the specified
lead spacing.
Do not exceed the specified time or temperature limits during soldering.
Avoid external energy inputs, such as fire or electricity.
Avoid overload of the capacitors.
The table below summarizes the safety instructions that must always be observed. A detailed de-
scription can be found in the relevant sections of the chapters "General technical information" and
"Mounting guidelines".
Topic Safety information Reference chapter
"General technical
information"
Storage conditions Make sure that capacitors are stored within the
specified range of time, temperature and humidity
conditions.
4.5
"Storage conditions"
Flammability Avoid external energy, such as fire or electricity
(passive flammability), avoid overload of the
capacitors (active flammability) and consider the
flammability of materials.
5.3
"Flammability"
Resistance to
vibration
Do not exceed the tested ability to withstand
vibration. The capacitors are tested to
IEC 60068-2-6.
EPCOS offers film capacitors specially designed
for operation under more severe vibration regimes
such as those found in automotive applications.
Consult our catalog "Film Capacitors for
Automotive Electronics".
5.2
"Resistance to vibration"
B32231
General purpose (wound)
Page 14 of 19Please read Cautions and warnings and
Important notes at the end of this document.
Topic
Safety information Reference chapter
"Mounting guidelines"
Soldering Do not exceed the specified time or temperature
limits during soldering.
1 "Soldering"
Cleaning Use only suitable solvents for cleaning capacitors. 2 "Cleaning"
Embedding of
capacitors in
finished assemblies
When embedding finished circuit assemblies in
plastic resins, chemical and thermal influences
must be taken into account.
Caution: Consult us first, if you also wish to
embed other uncoated component types!
3 "Embedding of
capacitors in finished
assemblies"
B32231
General purpose (wound)
Page 15 of 19Please read Cautions and warnings and
Important notes at the end of this document.
Symbols and terms
Symbol English German
α Heat transfer coefficient Wärmeübergangszahl
α
C
Temperature coefficient of capacitance Temperaturkoeffizient der Kapazität
A Capacitor surface area Kondensatoroberfläche
β
C
Humidity coefficient of capacitance Feuchtekoeffizient der Kapazität
C Capacitance Kapazität
C
R
Rated capacitance Nennkapazität
C Absolute capacitance change Absolute Kapazitätsänderung
C/C Relative capacitance change (relative
deviation of actual value)
Relative Kapazitätsänderung (relative
Abweichung vom Ist-Wert)
C/C
R
Capacitance tolerance (relative deviation
from rated capacitance)
Kapazitätstoleranz (relative Abweichung
vom Nennwert)
dt Time differential Differentielle Zeit
t Time interval Zeitintervall
T Absolute temperature change
(self-heating)
Absolute Temperaturänderung
(Selbsterwärmung)
tan δ Absolute change of dissipation factor Absolute Änderung des Verlustfaktors
V Absolute voltage change Absolute Spannungsänderung
dV/dt Time differential of voltage function (rate
of voltage rise)
Differentielle Spannungsänderung
(Spannungsflankensteilheit)
V/t Voltage change per time interval Spannungsänderung pro Zeitintervall
E Activation energy for diffusion Aktivierungsenergie zur Diffusion
ESL Self-inductance Eigeninduktivität
ESR Equivalent series resistance Ersatz-Serienwiderstand
f Frequency Frequenz
f
1
Frequency limit for reducing permissible
AC voltage due to thermal limits
Grenzfrequenz für thermisch bedingte
Reduzierung der zulässigen
Wechselspannung
f
2
Frequency limit for reducing permissible
AC voltage due to current limit
Grenzfrequenz für strombedingte
Reduzierung der zulässigen
Wechselspannung
f
r
Resonant frequency Resonanzfrequenz
F
D
Thermal acceleration factor for diffusion Therm. Beschleunigungsfaktor zur
Diffusion
F
T
Derating factor Deratingfaktor
i Current (peak) Stromspitze
I
C
Category current (max. continuous
current)
Kategoriestrom (max. Dauerstrom)
B32231
General purpose (wound)
Page 16 of 19Please read Cautions and warnings and
Important notes at the end of this document.

B32231D3683K

Mfr. #:
Manufacturer:
EPCOS / TDK
Description:
CAP FILM 0.068UF 250VDC AXIAL
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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