SMIL is a markup language which enables us to describe multimedia contents. This paper proposes a design model of SMIL browser functionality for mobile terminals whose resources are limited. We introduce SMIL Component, which is based on attachable software architecture to a pre-installed generic web browser. This leads to reduce memory size that SMIL Component consumes and bring high adaptability of SMIL Component for various web browsers. We implement SMIL Component and evaluate RAM sizes and presentation delays. As a result, we found out that SMIL Component can be useful for MMS presentations on mobile terminals.