This part is a kind of semiconductor called EE1621.

Function of this product has General Power Transformer.

Manufacturers : Sumida Corporation

Image and pinout :

Some of the text within the PDF file :

General Power Transformer< Pin Type:EE Series> Type: EE1621/MS •Ÿ Product Description •E 23.0•~ 16.5mm Max.(L•~ W), 23.0mm Max. Height. •E In addition to the typical versions of parameters shown here, custom designs are available to meet your exact requirements •Ÿ •E Feature Max. Operating frequency 300kHz. •E Ideally used in EL inverter, camera. Switching regulator. •E RoHS Compliance •Ÿ Dimensions (mm) 18.5 MAX. 5-2.7! 23.0 MAX. 0.2 A 4.0! 0.6! " 0.1 A 3-3.5! 0.2 A I " NDICATES COPPER FOIL •Ÿ Schematics (Bottom) 1 10 9 6 2 TUBE 5 “ S” is winding start •Ÿ Specification Sample No. 04MMS092B Inductance (2-1) 100kHz/1V Inductance (2-1) 100kHz/1V 55.0µH Max. Hi-pot (1,2-5,6,9,10)/1.0mA AC 4000Vrms/3sec. 1.8mH ± 7% Ple [ ... ]

EE1621 PDF Datasheet Download