Epoxy-Dipped Multilayer Capacitor
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Technical characteristics
- Dielectric materialCeramics
Description
DIELECTRIC TYPE
The choice of dielectric is largely determined by the temperature stability required:
NPO Ultra Stable Class I dielectric, with predictable change of electrical properties on temperature, voltage, frequency and time. Used in circuits requiring stable performance.
X7R Stable Class II dielectric, with predictable change of properties with temperature, voltage, frequency and time. Used as blocking, coupling, by - passing and frequency discriminating elements. This dielectric is ferroelectric and offers higher capacitance ranges than class I.
Y5V(Z5U) General purpose Class II dielectric with highest dielectric constant and greater variation of properties with temperature and test conditions. Very high capacitance per unit volume and suited for bypass and coupling application as well as filtering, transient suppression blocking, and change storage application.
CAPACITANCE VALUE AND TOLERANCE
Determined by circuit requirements. NOTE that chip prices decrease with lower capacitance value and looser tolerances. Capacitance range : 0.5pF to 1.0uF.
VOLTAGE
Determined by circuit requirement. Unit are designed to exceed the withstanding voltage specification, i.e. the user need not incorporate an additional safety margin.
CAPACITOR TERMINATION
Termination choice is largely determined by the chip attachment method. Nickel barrier is recommended for units exposed to repeated solder cycles, to preclude leaching of the termination. Silver is used on units to be lead attached, as the more ductile silver minimizes thermal cycling hazards.
PACKAGING
Units are available in bulk, some sizes on tape and reel, specify if reeled.
The choice of dielectric is largely determined by the temperature stability required:
NPO Ultra Stable Class I dielectric, with predictable change of electrical properties on temperature, voltage, frequency and time. Used in circuits requiring stable performance.
X7R Stable Class II dielectric, with predictable change of properties with temperature, voltage, frequency and time. Used as blocking, coupling, by - passing and frequency discriminating elements. This dielectric is ferroelectric and offers higher capacitance ranges than class I.
Y5V(Z5U) General purpose Class II dielectric with highest dielectric constant and greater variation of properties with temperature and test conditions. Very high capacitance per unit volume and suited for bypass and coupling application as well as filtering, transient suppression blocking, and change storage application.
CAPACITANCE VALUE AND TOLERANCE
Determined by circuit requirements. NOTE that chip prices decrease with lower capacitance value and looser tolerances. Capacitance range : 0.5pF to 1.0uF.
VOLTAGE
Determined by circuit requirement. Unit are designed to exceed the withstanding voltage specification, i.e. the user need not incorporate an additional safety margin.
CAPACITOR TERMINATION
Termination choice is largely determined by the chip attachment method. Nickel barrier is recommended for units exposed to repeated solder cycles, to preclude leaching of the termination. Silver is used on units to be lead attached, as the more ductile silver minimizes thermal cycling hazards.
PACKAGING
Units are available in bulk, some sizes on tape and reel, specify if reeled.
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Epoxy-Dipped Multilayer Capacitor
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