MKT1826322014 Vishay, MKT1826322014 Datasheet - Page 7

• Manufacturer Part Number: MKT1826322014
• Description: CAPACITOR POLYESTER 0.022UF, 100V, RADIAL
• Manufacturer: Vishay
• Series: MKT1826r

Specifications of MKT1826322014

• Capacitor Application: Safety / Suppression
• Capacitor Dielectric Type: Polyester
• Capacitance Tolerance: ± 5%
• Voltage Rating: 100VDC
• Capacitor Case Style: Radial Leaded
• Capacitance: 0.022µF
• Tolerance: 5 %
• Termination Style: Radial
• Dimensions: 2.5 mm W x 7.2 mm L x 6.5 mm H
• Lead Spacing: 5 mm
• Operating Temperature Range: - 55 C to + 125 C
• Product: Metallized Polyester Film Capacitors
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

INDUCTANCE (L)
The inductance of a capacitor depends upon the geometric
design of the capacitor element and the length and the
thickness of the contacting terminals. All capacitors shown in
this catalog have an extended metallized film or foil con-
struction and exhibit thus a very low inductance. The
inductance of radial leaded capacitor types are typically
measured with 2mm long lead wires. Typical values are
1.0nH/1mm lead length.
RESONANT FREQUENCY (f
The resonant frequency is a function of the capacitance and
the inductance of a capacitor. At resonant frequency the
capacitive reactance equals the inductive reactance
(l/ωC = ωL). At its lowest point of the resonant curve only the
ohmic value is effective, this means the impedance equals
the ESR. Above the resonate frequency the inductive part of
the capacitor prevails.
IMPEDANCE (Z)
The impedance Z is the magnitude of the vectorial sum of
ESR and the capacitive reactance X
circuit under consideration of the series inductance L.
The impedance is typically measured on capacitors (radial
types) having 2mm long leads.
DIELECTRIC ABSORPTION (DA)
The DA depends upon the dielectric material and is a measure
of the reluctance of a dielectric to discharge completely. After
a fully charged capacitor is discharged the residual charge is
expressed as a percentage of the initial charge. DA
measurements are normally performed in accordance to IEC
60384-1.
Typical DA values for film capacitors are:
AMBIENT TEMPERATURE (ϑ ϑ ϑ ϑ ϑ
The ambient temperature is the temperature in the immediante
surrounding of the capacitor. It is identical to the surface
temperature of an unloaded capacitor, At pulse or AC load
operations the surface temperature may, due to an internal
temperature increase, rise above the ambient temperature.
Document Number 26033
Revision 01-Dec-03
KT/MKT = 0.20%, KC/MKC = 0.10%, KP/MKP = 0.05%
DA = 100 * ————— (%)
Z = ESR
2
+ (ωL - 1/ωC)
U
U
resid
initial
r
)
amb
C
in an equivalent series
)
For technical questions, contact [e-mail]
2
Film Capacitors
MAXIMUM TEMPERATURE (ϑ ϑ ϑ ϑ ϑ
The maximum temperature or upper category temperature is
the highest temperature at which a capacitor may still be
operated.
At pulse or AC load operations, the sum of the ambient
temperature (ϑ
(∆ϑ
maximum temperature (ϑ
MINIMUM TEMPERATURE (ϑ ϑ ϑ ϑ ϑ
The minimum temperature or lower category temperature is
the lowest temperature at which a capacitor may still be
operated.
CLIMATIC CATEGORY
The climatic category indicates the climatic conditions which
the capacitor may be operated.
According to DIN IEC 60068-1 the climatic category is
expressed by a three group coding e.g. 55/100/56.
- The first group indicates the lower category temperature
- The second group the upper category temperature
- The third group indicates the number of days (56) which the
PULSE RISE TIME (du/dt)
The pulse rise time indicates the ability of a capacitor to
withstand fast voltage changes and hence high current peaks.
The du/dt value, expressed in volts per µs (V/µs), represents
the steepest voltage gradient of the pulse (rise or fall time).
Its value is dependent upon the properties of the dielectric
material, the film thickness and the capacitor's construction.
If the applied pulse (U
(U
du/dt = data sheet value
The pulse rise time (du/dt) is tested with values that are 5 to
10 times above the data sheet value.
Owing to their construction stacked film capacitors exhibit
compared to wound film capacitors higher du/dt values.
For film/foil capacitors the applied pulse rise time (du/dt) is not
limited. At higher repetition frequencies, however, the heat
generated in the capacitor during the pulse operation must
not rise by more than 10°C.
(- 55°C).
(+100°C).
capacitor can withstand within specified limits if exposed to
a relative humidity of 95% and a temperature of + 40°C.
(DIN IEC 60068-1)
R
General Technical Information
L
) higher pulse rise times are permitted.
) caused by the load conditions, must not exceed the
du/dt
(MAX)
amb
ϑ
max
p
) and the temperature increase
) voltage is lower than the rated voltage
= du/dt * U
≥ ϑ
max
amb
).
Vishay Roederstein
+ ∆ϑ
R
MIN
/U
MAX
L
P
)
(V/µs)
)
www.vishay.com
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