This part is a kind of semiconductor called MTB.

Function of this product has METALLIZED POLYESTER FILM CAPACITORS.

Manufacturers : RUBYCON CORPORATION

Image and pinout :

Some of the text within the PDF file :

METALLIZED POLYESTER FILM CAPACITORS MTB MTB FEATURES • • • SERIES NEW ° SPECIFICATIONS ° ∼ ° ° δ × µ µ Ω Ω OUTLINE PART NUMBER METALLIZED POLYESTER FILM CAPACITORS MTB DIMENSIONS AND QUANTITY RATED VOLTAGE : 250VDC µ RATED VOLTAGE : 400VDC µ [ ... ]

MTB PDF Datasheet Download