This part is a kind of semiconductor called B5960.

Function of this product has PTC Thermistors.

Manufacturers : EPCOS

Image and pinout :

Some of the text within the PDF file :

PTC thermistors for overcurrent protection SMDs, EIA size 1210, 24 V, 63 V and 230 V Series/Type: Date: B5960*, B59707, B59807, B59907 April 2007 © EPCOS AG 2007. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS' prior express consent is prohibited. Overcurrent protection SMDs, EIA size 1210, 24 V, 63 V and 230 V A606/607, A707, A807, A907 Applications Overcurrent protection Short-circuit protection Features Thermistor chip with lead-free tinned terminations Small size Short response times Suitable for reflow soldering only Suitable for automatic placement RoHS-compatible Delivery mode Blister tape, 180-mm reel Dimensional drawing Dimensions in mm Geometry [ ... ]

B5960 PDF Datasheet Download