Low Frequency Noise in Tantalum Capacitors

Increasing Reliability of Smd Tantalum Capacitors in Low Impedance Applications

High dv/dt conditions in low impedance circuits using surface mount tantalum capacitors is discussed. Circuit designs utilizing low R(DS)ON MOSFETs for preventing these conditions are presented in detail. TECHNICAL INFORMATION INCREASING RELIABILITY OF SMD TANTALUM CAPACITORS IN LOW IMPEDANCE APPLICATIONS by David Mattingly Application

Characterization of Tantalum Polymer Capacitors

Solid-electrolyte tantalum capacitors were first developed and commercially produced in the 1950s. They represented a quantum leap forward in miniaturization and reliability over existing wound-foil wet electrolytic capacitors. While the solid tantalum capacitor has dramatically improved electrical performance versus wet-electrolyte capacitors, especially at low temperatures, today’s electronic...

Reliability of Solid Tantalum Capacitors

Tantalum Capacitors in Power Supply Applications

The capacitance range for tantalum capacitors spans from singular microfarads (uFd) through a thousand microfarads. It is an electrolytic type of capacitor that can utilize either a liquid type of electrolyte or a solid state material as the cathode connection. The anode construction utilizes the high porosity of the pressed tantalum material to create an enormous amount of surface area to prod...

Scintillation Breakdowns in Chip Tantalum Capacitors

Scintillations in solid tantalum capacitors are momentarily local breakdowns terminated by a self-healing or conversion to a high-resistive state of the manganese oxide cathode. This conversion effectively caps the defective area of the tantalum pentoxide dielectric and prevents short-circuit failures. Typically, this type of breakdown has no immediate catastrophic consequences and is often con...