Surface mount TCOs

14 June 2017 Circuit & System Protection

New from Bourns come the industry’s first surface mount miniature resettable thermal cutoff (TCO) devices. Model SA Series TCO battery protection solutions are compatible with surface mount reflow soldering methods, which eliminates supply chain steps and streamlines the manufacturing process.

By controlling abnormal, excessive current virtually instantaneously up to rated limits, miniature TCO devices have become popular over-current and over-temperature protection solutions for lithium polymer and prismatic cell battery packs. TCO devices are traditionally welded in place in the manufacturing process. Bourns designed its new Model SA series so they could be soldered directly onto printed circuit boards, saving manufacturing time and costs for battery cell suppliers.

The very low-profile SA series has a maximum height of just 1,09 mm. It offers current capabilities from 6 A up to 11 A at 60°C, is designed to withstand humid environments and offers high corrosion resistance from its bimetal mechanism. These features and their surface mount packaging make them ideal protection solutions for notebook PCs, tablet PCs and smartphones, as well as opening up new application areas such as USB Type C cables, automotive heating and power tools.

For more information contact Pieter Engelbrecht, Avnet South Africa, +27 (0)11 319 8600, [email protected], www.avnet.co.za

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