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Bourns - Miniature resettable TCO for smartphones and portable electronics batteries

Technology Cover
Data de postagem: 2019-10-27, Bourns Inc.

Bourns has introduced the company's smallest miniature resettable Thermal Cutoff (TCO) devices created for overtemperature and overcurrent protection of lithium polymer and prismatic cells. The Model CB Series is the company's next generation of axial leaded TCO devices controlling abnormal, excessive current virtually instantaneously, up to rated limits. This latest series is more than 26% smaller than their NR Series, yet has the same current-carrying ability. The devices' low-profile 0.8mm height and body width of 2.5mm make this series excellent for smaller batteries in smartphones and portable electronics, yet their high current carrying ability also makes them ideal for next-generation notebook and tablet PC battery cells.

Providing resistance levels as low as 2.2milliohms, the Model CB Series has current abilities from 6A up to 11A at 60C as well as a welding projection option. These new miniature resettable TCO devices are offered in four trip temperature options of 72C, 77C, 82C and 85C with a ±5C tolerance. The temperature options can be further narrowed upon request. Also, the construction of the CB Series uses a high corrosion resistant bimetal mechanism to resist most humid environments.

Available now, the devices are RoHS compliant and halogen-free with UL agency recognition.

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