Conformal Coating Guide for Conformal Coated Tantalum Capacitors 1

Introduction

```Tantalum electrolytic capacitors are suitable for applications requiring high volume efficiency, stable electrical performance, reliability, and long service life. Tantalum/tantalum oxide/manganese dioxide systems are ideal for manufacturing solid tantalum capacitors, making them a suitable choice for today's surface-mounted components. Vishay Sprague is a pioneer and leader in this field, producing various types of tantalum capacitors for consumer, industrial, automotive, military, and aerospace electronic applications. Tantalum does not exist in its pure state. Instead, it is typically found in some oxide minerals, often in combination with niobium ores when its content exceeds half that of tantalum. Key sources of tantalum include Australia, Brazil, Canada,diode China, and several African countries. Synthetic tantalum concentrates and tin slag from Thailand, Malaysia, and Brazil are also important raw materials for tantalum production. Electronic applications, particularly capacitors, account for the largest share of global tantalum consumption. Other significant uses of tantalum include cutting tools (tantalum carbide), high-temperature superalloys, chemical processing equipment, medical implants, and munitions. Vishay Sprague specializes in capacitordiode components, rods, and high-temperature vacuum-treated plates. Tantalum Capacitor Fundamentals Most metals form crystalline oxides. Non-protective oxides, such as rust or black copper oxide.```.diode