The 2sk2790 name on this tiny 21.3 KB PDF is the only information provided. Filed as a schematic, it most probably holds a brief datasheet for an N-channel field-effect…

PDF of 410 KB for the 2SK2717, recorded as a schematic but named after a single semiconductor part.

Part reference for the 2SK2607, an N-channel FET according to the 2SK prefix of the JIS numbering convention.

Compact 30.7 KB PDF for the 2SK2593, filed as a schematic though the lowercase name is simply a semiconductor part number.

Covering the 2sk2580, this 34.5 KB PDF is labelled a schematic yet identifies only a semiconductor part, pointing to a short datasheet.

PDF for the 2SK2463 carrying a _1-5 suffix, 136 KB in size; the name does not explain the suffix, which may refer to pages or an edition of the document.

PDF reference for the 2SK2339 transistor, 35.9 KB, catalogued under the schematic type.

A PDF of about 88 KB for the 2SK2154, filed under schematics but most likely a component datasheet, since the name is just the part number.

Datasheet in a 33.2 KB PDF for the 2SK1967, a Japanese-registered N-channel field-effect transistor indicated by the 2SK prefix.

A 95.0 KB PDF named after the 2SK1908, listed in the schematic section of the index. Since 2SK is the Japanese registration prefix for N-channel FETs, treat it as the…

Reference PDF covering the 2SK1842, a part number in the JIS 2SK series used for N-channel field-effect transistors.

PDF, 121 KB, for the 2SK1474 transistor. Japanese 2SK numbering denotes an N-channel field-effect device, so although the index category is schematic, the content is…

Part-number PDF for the 2SK1471, 92.5 KB in size and labelled as a schematic in the index.

The 2SK1449 gives this 109 KB PDF its name, and nothing else is stated. It is filed as a schematic, though it is probably the device data sheet.

This small 31.6 KB PDF bears the name 2SK1444LS and is classed as a schematic. The name links it to a suffixed variant of the 2SK1444 without saying what LS stands for.

Component sheet for the 2SK1069, an N-channel FET from the Japanese 2SK numbering range, stored as a 98.7 KB PDF.

Short 37.3 KB PDF for the 2SK544, a part number belonging to the JIS 2SK series of N-channel FETs; although indexed as a schematic, it should be a component datasheet.

Compact 79.7 KB PDF for the 2SJ413, indexed under schematics but by its number a single-component datasheet.

Small 43.1 KB PDF for the 2SJ400, likely a short datasheet despite being indexed as a schematic.

A 92.5 KB PDF named after 2SJ256, a JIS-numbered P-channel field-effect transistor according to its 2SJ prefix.

A 92.7 KB PDF catalogued under schematics but titled only 2SJ228, a JIS-style designation used for P-channel FETs.

Small 89.2 KB PDF labelled 2SJ191, a JIS designation that marks a P-channel FET, so the file is presumably that part's datasheet rather than a board schematic.

Despite sitting in the schematic category, this 99.9 KB PDF is named after the 2SC4164 and should therefore contain transistor specifications rather than a circuit…

Reference document for the 2SC5089 NPN transistor, supplied as a 465 KB PDF and filed with schematics.

Brief 35.7 KB PDF covering the 2SC5536 NPN transistor, filed as a schematic in the index.

Catalogued as a schematic, this 45.8 KB PDF is named after the 2SC5503, a part number in the Japanese 2SC series used for NPN bipolar transistors.

A 39.3 KB PDF for the 2SC5490 component, which belongs to the 2SC range of NPN bipolar transistors under Japanese JIS numbering.

A 45.1 KB PDF listed under schematics for the 2SC5448, a part number that under the Japanese JIS scheme identifies an NPN bipolar transistor.

Filed under schematics, the 2SC3993 PDF (107 KB) is far more likely a component datasheet, since the name is simply a JIS transistor part number.

PDF documentation for the 2SC3929 transistor, 54.1 KB, suffixed _E and filed under schematics.

The 2SC5416 base part is described in this 45.8 KB PDF, indexed as a schematic, with an LS variant held in a separate file.

Single-part reference for the 2SC4864 in a 118 KB PDF, catalogued as a schematic. Apart from the part number, the name gives no information.

Part-number document for the 2SC3917, delivered as a 30.8 KB PDF. The 2SC prefix follows the JIS system for NPN bipolar transistors, so the content should be a datasheet…

2SC3789 is the sole identifier on this 157 KB PDF, placed in the schematic section of the index.

A 186 KB PDF identified by the part number 2SC2873 and classed as a schematic. Under the JIS standard the 2SC prefix means an NPN bipolar transistor, so this is most…

Short PDF of 50.8 KB for the 2SC1509, with an _E suffix in the file name, listed in the schematic section.

A 29.2 KB PDF carrying the part number 2SB1683, a PNP transistor by Japanese JIS naming; though labelled as a schematic, it is expected to be the component datasheet.

The 2SA1592 is covered by this 156 KB PDF, filed as a schematic although the name refers to a single semiconductor.

Datasheet-type PDF, 180 KB, for the 2SA1899 component, filed as a schematic although the name carries no detail besides the part number.

A 113 KB PDF for the 2SA1887, a PNP bipolar transistor in the JIS 2SA numbering series.