Datasheet in PDF form for the 2SK3565, an N-channel field-effect transistor by its 2SK prefix under the Japanese JEDEC-style numbering.

Datasheet for the 2SK2043 N-channel MOSFET, with the file name stating a 600 V drain-source rating and 2 A drain current.

Duplicate copy of the 2SK2043 datasheet, describing an N-channel MOSFET rated 600 V and 2 A according to the name; the trailing (1) only marks a second saved instance of…

Component datasheet for the 2SD2137, a part from the Japanese 2SD series, which designates NPN bipolar transistors intended for low-frequency use.

Datasheet for the 2SD1776 transistor, which the 2SD prefix marks as an NPN bipolar device for low-frequency applications.

Datasheet for the 2SD1427 NPN bipolar transistor, a compact 66 KB PDF from the Japanese 2SD numbering family.

Datasheet in PDF form labelled STB451D01-1, version 2.1, dated 2023-08-14, about 2.11 MB.