This part is a kind of semiconductor called BC1005IR-330-N.

Function of this product has Leaded Power Chokes.

Manufacturers : Chilisin Electronics

Image and pinout :

Some of the text within the PDF file :

Leaded Power Chokes – BC Series BC Series Features l Compact size, high performance, low cost l With Large current loads l Toroidal shape core reduces coils roar to an all-time low Applications l Compact size, high performance, low cost l With Large current loads l Toroidal shape core reduces coils roar to an all-time low Product Identification Shapes and Dimensions l Note: lead-free l Customized specifications are also welcome. Electrical Specifications Part Number BC1005IR-330-N BC1104IR-300-N BC1305IR-330-N BC1306IR-300-N BC1506IR-330-N BC1806IR-390-N BC2006IR-430-N BC2310IR-960-N BC2711IR-121-N BC3311IR-141-N A Max 12.0 13.5 15.5 17.0 19.0 21.0 25.0 27.0 32.0 40.0 Dimensions (mm) B CD Max Max Max 7.0 25.0 7.5 25.0 8.5 25.0 9.5 25.0 10.0 25.0 10.0 25.0 11.0 25.0 13.5 25.0 1 [ ... ]

BC1005IR-330-N PDF Datasheet Download