Bourns Unveils its Smallest Automatically Resettable Surface Mount Mini-breaker Device

Bourns Model SW Mini-breaker

Bourns, Inc., a manufacturer and supplier of electronic components for power, protection, and sensing solutions, today announced its smallest surface mount mini-breaker TCO device. The Bourns Model SW mini-breaker has a 4.7 mm 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.

Bourns Model SW mini-breaker device is available now and is RoHS compliant. For detailed product information, please see:

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, medical (low/medium risk), audio and various other market segments. Additional company and product information is available at