This part is a kind of semiconductor called VFD-L.
Function of this product has User Manual.
Manufacturers : ETC
Image and pinout :

Some of the text within the PDF file :
User Manual VARIABLE SPEED AC MOTOR DRIVE 115V/230V 25W – 100W VFD-L HIGH PERFORMANCE / EASY CONTROL AC DRIVE ASIA DELTA ELECTRONICS, INC. TAOYUAN Plant/ 31-1, SHIEN PAN ROAD, KUEI SAN INDUSTRIAL ZONE TAOYUAN 333, TAIWAN TEL: 886-3-362-6301 FAX: 886-3-362-7267 http://www.deltaww.com/acdrives NORTH/SOUTH AMERICA EUROPE DELTA PRODUCTS DELTRONICS (Netherlands) B.V. CORPORATION Sales Office/ Industriegebied Venlo Nr. 9031 Sales Office/ P.O. BOX 12173 Columbusweg 20 5101 DAVIS DRIVE NL-5928 LC Venlo RTP, NC 27709 U. S. A. The Netherlands TEL: 1-919-767-3813 TEL: 31-77-324-1930 FAX: 1-919-767-3969 FAX: 31-77-324-1931 http://www.deltaww.com/acdrives 1 Preface Thank you for choosing Delta’s high-performance VFD-L Series. VFD-L Series are manufactured by adopting high-quality components, [ ... ]
VFD-L PDF Datasheet Download
