Bourns new surface mount mini-breaker device

9th November 2023
Harry Fowle

Bourns has announced its smallest surface mount mini-breaker TCO device for overtemperature and sensing applications.

The Bourns Model SW mini-breaker has a 4.7 x 2.8 mm footprint with a height of just 0.94 mm. Designed to control abnormal, excessive temperature virtually instantaneously, up to rated limits, the Model SW mini-breaker is an optimal overtemperature protection solution for a wide range of applications that include LED systems, wireless charging coils, motors, and for a variety of printed circuit board components. This new model mini-breaker can also be used as an overtemperature sensor.

The new Model SW mini-breaker complements Bourns' latest Model SD Series with features and functionality that meet lower current protection application requirements. It offers a trip temperature setting of 70 °C ±5 °C, with maximum resistance values of 5 mΩ. For wireless charging applications, this mini-breaker model can operate up to 100 V peak (AC 128 kHz). Manufactured using Bourns' highest rated corrosion resistant bimetal mechanism, this mini-breaker model is also designed to withstand humid environments.

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