Schematics for a device identified only as K520, delivered as a fairly large ZIP archive of 34.8 MB.

Datasheet for the 2SD2216J, a 40.5 KB PDF listed as a schematic. The J is part of the type designation and marks a variant of the 2SD2216, so the exact suffix should be…

A 44.1 KB PDF for the base 2SD2177 transistor, the name also carrying an _E suffix. The 2SD prefix in the Japanese JIS scheme marks an NPN bipolar device for…

A 100 KB PDF for the 2SD1685, categorised as a schematic but named in the manner of a single-part datasheet.

Named for the 2SD1618 transistor, a 116 KB PDF listed as a schematic but most plausibly the part's datasheet.

Carrying only the part number 2SD1885, this 93.4 KB PDF is filed as a schematic, though it reads as a transistor datasheet by name.

A 90.1 KB PDF named after the 2SD1877 semiconductor and filed as a schematic, although its content is expected to be a component datasheet.

Datasheet-style document for the 3SK302, a 26.0 KB PDF indexed as a schematic. The 3SK prefix in Japanese JIS numbering denotes a four-terminal N-channel field-effect…

Datasheet-style PDF for the 3SK264, roughly 82.2 KB, indexed as a schematic. The name contains only the type number.

PDF sheet of about 42 KB for the 3N259, catalogued under schematics though the file name is simply a JEDEC part number.

Component sheet covering the 3N254, delivered as a 42.2 KB PDF and indexed as a schematic. JEDEC numbers beginning with 3N denote registered devices having four leads.

Component datasheet in PDF form, 57.8 KB, for the 2SD1478, though the index files it under schematics.

A compact 30.1 KB PDF for the 2SK2682LS. The base 2SK2682 follows JIS numbering for N-channel field-effect transistors, while the LS suffix marks a variant, often a…

A 414 KB PDF documenting the 2SK2662, a part numbered under the JIS scheme in which 2SK means an N-channel FET.

Datasheet PDF of 36.1 KB for the 2sk2572, filed under schematics although nothing in the name points to a board or appliance.

Reference sheet in PDF form for the 2SK2349, sized 54.7 KB and listed in the schematic category.

Named after part 2SK2218, this 213 KB PDF appears in the schematics section but is most likely the datasheet for an N-channel FET.

Part 2SK2162 is the only detail in the name of this 132 KB PDF, which the index files as a schematic though it is most likely a datasheet.

The 2SK2152 is covered by this 93 KB PDF, listed as a schematic but named only by its part number, so it is most likely the transistor's datasheet.

Part number 2SK2124 is the sole detail here, in a 32 KB PDF catalogued as a schematic and most likely a short datasheet.

A 295 KB PDF on the 2SK1825 semiconductor. The 2SK prefix follows the JIS standard for N-channel FETs, suggesting a datasheet despite the schematic category.

Short 36.3 KB PDF on the 2SK1803. Part numbers prefixed 2SK are N-channel field-effect transistors in the Japanese JIS registration system, and this file is most likely…

Part datasheet in PDF form for the 2SK1727, about 86 KB. Its 2SK prefix marks an N-channel FET under the Japanese transistor naming system; manufacturer, package and…

Labelled 2SK1451, this 111 KB PDF sits in the schematic section but by name looks like a transistor data sheet. The JIS 2SK code belongs to N-channel FETs.

Named for the 2SK1445, this 108 KB PDF falls under the schematic category but most likely contains the full transistor data sheet.

PDF sheet for the 2SK1381 transistor, an N-channel FET in the Japanese 2SK series, about 443 KB in size, which suggests full characteristic graphs and mechanical data.

Component datasheet in PDF, 86.7 KB, for the 2SK546, listed among schematics. Following JIS numbering, 2SK parts are N-channel FETs, so the document covers a single…

A small 31.5 KB PDF identified only by the part number 2SK374. Under JIS numbering the 2SK series covers N-channel FETs, so the content is almost certainly a short…

A 32.0 KB PDF for part 2SJ616, placed among schematics but named like an individual transistor datasheet.

A 31.0 KB PDF for the 2SJ597, stored in the schematic category although it is named like a single-part datasheet.

Datasheet for the 2SJ412 P-channel field-effect transistor, provided as a 328 KB PDF; the larger size suggests detailed curves and package drawings.

Compact 40.0 KB PDF for the 2SJ348, filed as a schematic but by its part number a datasheet. Under the Japanese JIS designation, 2SJ marks a P-channel FET.

Component datasheet in PDF form for the 2SJ284, roughly 81.4 KB. The file name names only this part, with no device, board or revision mentioned.

Indexed as a schematic, the 124 KB PDF named 2SJ193 most probably holds the datasheet for that JIS-numbered P-channel FET.

Named after the 2SJ190, this 93.3 KB PDF sits in the schematic category but, given the JIS 2SJ prefix for P-channel field-effect transistors, should contain the…

Datasheet-type PDF of 41.7 KB for the 2SD1385, catalogued as a schematic; the JIS 2SD prefix identifies an NPN bipolar transistor for low-frequency applications.

Datasheet PDF for the 2SD1192 transistor, 133 KB, listed in the schematic section of the index. Its name gives nothing beyond the part number.

Short PDF of 43.2 KB for the 2SD1149, with an _E suffix after the part number that the name leaves unexplained. It is indexed as a schematic but reads as a datasheet.

Compact UTC datasheet, around 14 KB, for the 2SD880 NPN transistor from Unisonic Technologies.

Indexed as a schematic, this 59 KB PDF carries the name 2SC4655 with an E suffix, which plausibly denotes an English-language version.