This part is a kind of semiconductor called HCB1608KF-121T20.
Function of this product has FERRITE CHIP BEADS.
Manufacturers : TAI-TECH ADVANCED ELECTRONICS
Image and pinout :
Some of the text within the PDF file :
SPECIFICATION FOR APPROVAL Product Name Tai-tech Part No. FERRITE CHIP BEADS (Large Current Application) (LEAD FREE) HCB1608 Series Page Rev. No. 1 0 1.CONFIGURATION & DIMENSIONS : A D A B C D G H L : : : : : : : 1.60± 0.15 0.80± 0.15 0.80± 0.15 0.30± 0.20 0.60 REF 0.80 REF 2.60 REF L m/m m/m m/m m/m m/m m/m m/m B C G 2. SCHEMATIC DIAGRAM : b a PCB PATTERN 3. MATERIALS : NO. a. b. DESCRIPTION BODY TERMINATION SPECIFICATION FERRITE Ag / Ni / Sn REMARK 4. GENERAL SPECIFICATION : a. TEMP. RISE : 30° C MAX. b. RATED CURRENT : BASE ON TEMP. RISE c. STORAGE TEMP. : -55° C +125° C d. OPERATING TEMP. : -55° C+125° C e. RESISTANCE TO SOLDER HEAT : 260° C.10 SECS. TAI-TECH ADVANCED ELECTRONICS (S) PTE LTD H SPECIFICATION FOR APPR [ ... ]