Tantalum Capacitors

CWR26HH106MBFZ/PR Application Field and Working Principle

Tantalum capacitors are widely used in various application fields, including computer, consumer electronics, and communication. The CWR26HH106MBFZ/PR is a type of high-performance tantalum capacitor, used mainly in industrial control, renewable energy, precision instruments, robotics and other applications.

Tantalum capacitors are electrochemical capacitors which use tantalum material as electrodes and electrolyte as dielectric material. The CWR26HH106MBFZ/PR is a high-performance surface-mount tantalum capacitor, with a capacitance range of 0.1uF-680uF, and a maximum operating temperature of 125 °C. It is noted for its low equivalent series resistance (ESR) and high ripple current carrying capability.

The defining characteristics of a tantalum capacitor are achieved by a construction process from which the capacitor receives its name: the making of its electrodes from a sintered material made of a tantalum powder pressed and heated into a honeycomb structure.

The construction of the capacitor element begins with an oxide film made from an anode made of sintered tantalum powder loaded on the anode surface and a cathode amalgam material, typically manganese dioxide, deposited onto that anode oxide surface. This assembly is then fitted to a epoxy mold to form a solid block which is then fitted into a metal casing. The construction allows an electrical connection to be made from the ring terminals on the top of the capacitor casing to the two electrodes (anode, cathode) on the inside block or element.

The main working principle is based on the Faraday\'s Law of electromagnetic induction. When a alternating electric field is applied to the tantalum oxide film between the anode and cathode electrodes, a charge will be induced on the film. This phenomenon is called electrolytic capacitance, and it forms the basis of a tantalum capacitor. The anodic layer acts as dielectric material to the electric field, while the cathode layer acts as a reservoir of electrons to maintain the charge on the capacitor.

CWR26HH106MBFZ/PR also has higher energy capacity, leak current, reliability and long life due to its unique material inherent properties. With its high capacitance, low ESR, and high temperature rating, CWR26HH106MBFZ/PR is ideal for high-performance and long-term applications.

In summary, the CWR26HH106MBFZ/PR is a high-performance and reliable tantalum capacitor designed for use in industrial control, renewable energy, precision instruments, robotics and other applications. With its unique construction using a sintered anodized tantalum powder and Faraday’s Law working principle, the capacitors have a high energy capacity, low equivalent series resistance, and long life.