Ceramic Capacitors / MLCC
Ceramic capacitors are even more compact than film or tantalum capacitors. Their core consists of ultra-thin oxide ceramic layers of titanium oxide or barium titanate, which serve as dielectric. The oxide ceramic gives this type of capacitor high dielectric strength - ideal for high voltages. Color dots indicate the type of ceramic and the terminal side of the inner layer.
Ceramic capacitors are classified according to the magnitude of their dielectric constants:
- Type 1: Low dielectric constant (NDK capacitor).
Used in filters, oscillating circuits, oscillator circuits - Type 2: High dielectric constant (HDK capacitor)
Use as interference suppression capacitors in filter circuits or as buffers
Advantages
- Precise capacities
- Versatile use
- Arc protection
- High voltages
- 0.1pF to 220μF
- 4V to 6000 VDC
Types
- Disc capacitors
- Tube capacitors
- Bead capacitors
- Feedthrough capacitors
- Multi Layer Ceramic Capacitors (MLCC)
Datasheets
PDF 6.8 Mb MLCC Multi Layer Ceramic Capacitors
Multilayer ceramic capacitors or MLCCs (Multi Layer Ceramic Capacitors) are even more compact than conventional capacitors. Here, several ceramic layers are stacked on top of each other. MLCCs are the most common type.
The SAMWHA series of multilayer ceramic chip capacitors (MLC chip capacitors) were developed for a wide variety of applications. A distinction is made between the following types:
- class I with temperature compensation
- class II - standard
The class I MLCCs are C0G capacitors. Their performance is hardly influenced measurably by temperature, voltage and frequency. The most commonly used class II dielectrics are X7R, XSR and YSV types.
SMD Types & Specs
- SMD Standard
- SMD Type "High Voltage"
- SMD Type "High Frequency"
- Automotive applications
MLCC Applications
SAMWHA MLCCs are used in a wide variety of devices throughout the commercial and industrial electronics and communications markets, as well as in medical, military and aerospace applications.
- Smartphones, wireless phones
- DVD/CD players
- FDD/HDD hard disks
- Printers, copiers
- Gaming machines
- Digital cameras, TV and audio equipment
