Thermal Cutoff Devices can withstand humid environments.

Press Release Summary:

Suitable for protecting notebook PCs, tablet PCs and smart phones, Model SA Series Thermal Cutoff Devices provide current capabilities from 6 A up to 11 A at 60°C temperature. Compatible with surface mount reflow soldering methods, units are used as overcurrent and overtemperature protection for lithium polymer and prismatic battery packs. Devices are available in surface mount packaging with 1.09 mm height.

Original Press Release:

Bourns Announces Industry's First Surface Mount Miniature Resettable Thermal Cutoff (TCO) Devices for Battery Cell Protection

Designed for surface mount reflow soldering processes, Bourns® Model SA Series cuts manufacturing time and costs and opens new applications usage

Bourns, Inc., a leading manufacturer and supplier of electronic components, today announced the industry's first surface mount Miniature Resettable Thermal Cutoff (TCO) devices. Bourns' new Model SA Series TCO battery protection solutions are compatible with surface mount reflow soldering methods, which eliminate supply chain steps and streamline the manufacturing process.

By controlling abnormal, excessive current virtually instantaneously up to rated limits, miniature TCO devices have become popular overcurrent and overtemperature 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 Model SA series has a maximum height of just 1.09 mm. They offer current capabilities from 6 A up to 11 A at 60 °C, are designed to withstand humid environments and offer high corrosion resistance from their bimetal mechanism. These features and their surface mount packaging make them ideal protection solutions for notebook PCs, tablet PCs and smart phones as well as open up new application areas such as USB Type C cables, automotive heating and power tools.

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About Bourns

Bourns, Inc. is a leading manufacturer and supplier of position and speed sensors, circuit protection solutions, magnetic components, microelectronic modules, panel controls and resistive products. Headquartered in Riverside, California, USA, Bourns serves a broad range of markets, including automotive, industrial, consumer, communications, non-critical life support medical, audio and various other market segments. Additional company and product information is available at

Company Contact:

David Scofield

Bourns, Inc.

(951) 781-5054

Web Site:

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