A tantalum capacitor constructed using a sintered tantalum pellet in a cylindrical (typically tantalum) case which contains a wet electrolyte. Typically a high energy density, high reliability device, delivering higher volumetric efficiency than solid tantalums, and the ability to operate at voltages exceeding 100Vdc.
Wet tantalum capacitors are typically used in applications requiring a high reliability device, such as aeronautics, automotive and military, as well as high end industrial & telecommunications.
A common feature of wet tantalum capacitors is an hermetically sealed metal case. This increases their suitability for environments that contain moisture and/or contaminants.