MKT1826322014 Vishay, MKT1826322014 Datasheet - Page 6

• 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

RATED CAPACITANCE (C
The rated capacitance is defined as the capacitive part of an
equivalent series circuit consisting of capacitance and
equivalent series resistance (ESR).
C
value is typically measured at a frequency of 1kHz ± 20%,
a voltage of 0.03 x U
20°C. The capacitance values in this catalog are graded to
the E 6 or E 12 series (DIN IEC 60063).
The capacitance tolerance indicates the acceptable deviation
from the rated capacitance at 20°C.
Since the dielectric constant of plastic film is frequency
dependent, the capacitance value will decrease with increasing
frequency. High relative humidity may increase the capacitance
value.
are reversible.
CAPACITANCE DRIFT (LONG TERM STABILITY)
In addition to reversible changes the capacitance of a capacitor
is also subject to irreversible changes also known as drift.
The drift is dependent upon the dielectric material. The values
shown are maximum values and refer to a period of two years
and a temperature up to a maximum of 40°C. The drift
decreases gradually over the time. Frequent and extreme
temperature changes may exceed the catalog values.
TEMPERATURE COEFFICIENT (TC)
The temperature coefficient is the average capacitance change
over a specified temperature range. It indicates how much a
capacitance changes referred to 20°C, if the temperature
changes by 1°C. The TC is typically expressed in ppm/°C (parts
per million per °C). Depending upon the dielectric material
the TC can either be positive, or negative.
DISSIPATION FACTOR (TAN δ δ δ δ δ )
The dissipation factor (tan δ) is the ratio of the ESR to the
capacitive reactance X
power to the reactive power at a sinusoidal voltage of a
specified frequency.
General Technical Information
Vishay Roederstein
www.vishay.com
8
R
C
C
C
is the capacitance for which the capacitor is designed. It's
1
2
20
= Capacitance at temperature ϑ
= Capacitance at temperature ϑ
= reference capacitance at 20 ± 2 °C
Capacitance
TC
= ——————— (ppm/°C)
Xc
R
δ δ δ δ δ
C
C
20
(Max. 5 VAC) and a temperature of
C
(series capacitance) or the active
ESR
* (ϑ
changes
2
- C
2
R
-ϑ
1
)
1
)
1
2
due
For technical questions, contact [e-mail]
to
moisture
Film Capacitors
The tan δ reflects the polarization losses of the dielectric film
and the losses caused by the contact resistance (terminals -
schooping - electrodes) of the capacitor. Parallel losses can,
due to the high insulation resistance of film capacitors, be
neglected. The tan δ is temperature and frequency dependent.
The reciprocal value of tan δ is also known as Q-factor.
EQUIVALENT SERIES RESISTANCE (ESR)
The ESR is the ohmic part of an equivalent series circuit. Its
value assumes all losses to be represented by a single
resistance in series with the idealized capacitor.
The ESR comprises the polarization losses of the dielectric
material (Rpol), the losses caused by the resistance of the
leads, termination and electrodes (Rs) and the insulation
resistance (Ris).
INSULATION RESISTANCE (R
CONSTANT (τ τ τ τ τ )
The R
leakage current (flowing through the dielectric and over its body
surface) after the initial charging current has ceased. The R
is typically measured after one minute. ± 5 s at 20°C and a
relative humidity of 50 ± 2%.
The insulation resistance is determined by the property and
the quality of the dielectric material and the capacitor's
construction.
The R
humidity may decrease the insulation resistance. R
due to moisture are reversible.
For capacitor values > 0.33µF the R
(τ). It is the product of insulation resistance and capacitance
and is expressed in seconds or Megohm x µF
is
is
decreases with increasing temperature. A high relative
is the ratio of an applied DC voltage to the resulting
ESR = —————————(Ω)
τ = R
L
R
is
is
= U
x C (Megohm x µF)
Q = 1/tan δ
2 * π * f * C
tan δ = ———
Rs
DC
tan δ
/ |
Leak
ESR
X
is
C
(Ω)
is shown as time constant
Rpol
Document Number 26033
Ris
C
IS
Revision 01-Dec-03
) AND TIME
is
changes
is