MLCC Construction Diagram

Q:

What is the difference between standard and Tin/Lead termination for surface mount ceramics?

A:

The primary difference between standard (100% Matte-Tin) and Tin/Lead (Pb) terminations is the final plating.

Both termination options utilize a copper or silver frit system that is barrier plated with Nickel. The final termination layer is then plated over the nickel barrier layer.

Details about the layers used in a ceramic capacitor’s construction can be found in the series datasheet. For example, an image like this is found in the commercial X7R surface mount ceramic capacitor datasheet.

Example where Tin Lead Ceramic Terminations would be shown

Diagram showing construction with standard termination

Added on:

Thursday, July 23rd, 2015