This part is a kind of semiconductor called 3225K275.
Function of this product has CU3225K275.
Manufacturers : EPCOS
Image and pinout :

Some of the text within the PDF file :
SMD Varistors Monolithic; Standard Series Construction I Cylindrical varistor element, encapsulated I Encapsulation: thermoplast, flame-retardant to UL 94 V-0 I Termination: tinned copper alloy Features I Electrical equivalents to leaded types SIOV-S05/S07 up to 460 V RMS I Good solderability I PSpice models I Approvals: UL (all types) and CSA (³ K130) Taping I Supply on 8/12-mm tape, for tape dimensions see pages 154/155, for reel dimensions and packing units see page 157, chapter “ SMD Varistors: Taping” Type designation Detailed description of coding system on page 39, chapter “ General Technical Information” SIOV-CU 4032 K 275 G2 EPCOS metal oxide varistor Design Size (nominal) Taping mode Max. AC operating voltage Tolerance of varistor voltage General [ ... ]
3225K275 PDF Datasheet Download
