The 2SK2171 referenced in this 180 KB PDF is an N-channel field-effect transistor by JIS/EIAJ convention, which uses the 2SK prefix for that class.

Short PDF of about 34 KB tied to the 2SK2128 part number. It is catalogued as a schematic, but with nothing besides the part number in the name it is presumably a…

The 2SK2101 part number is followed by an extra 01mr suffix in this 175 KB PDF. The name does not explain that suffix, which could be a document code or revision.

Named after the 2SK1425 transistor, this 102 KB PDF is catalogued as a schematic though it is most probably the component datasheet.

Small PDF document, 28.8 KB, identified only by the part number 2SJ615 and filed as a schematic.

Covering the plain 2SC5261 without suffix, this 183 KB PDF is indexed as a schematic but concerns a single NPN bipolar transistor, as the JIS 2SC prefix indicates.

Labelled 2SC4578, the 104 KB PDF is indexed as a schematic, though its name matches a single semiconductor part, so it is probably a datasheet.

PDF datasheet for the 2SC5587 transistor, 332 KB, filed under schematics. Only the part number is given; there is no manufacturer, package or version in the name.

A 200 KB PDF for the 2SC5458, a part in the Japanese 2SC numbering scheme for NPN bipolar transistors, filed here as a schematic.

Indexed as a schematic, this 33.2 KB PDF is named after 2SC5669, a Japanese-standard NPN bipolar transistor designation, which points to a datasheet for a single…

Part 2SC5048 is the only detail in the name of this 210 KB PDF, classed here as a schematic.

Covering the 2SC5416LS, this 43.0 KB PDF is the LS variant of the 2SC5416, which is documented in a companion file.

Covering the 2SC5320, this 124 KB PDF is indexed as a schematic but is almost certainly a datasheet for a single transistor.

Filed under schematics, the 146 KB PDF is named 2SC2883, a Japanese JIS designation for an NPN bipolar transistor.

PDF of 45.8 KB titled 2sa2017, the JIS part number of a PNP bipolar transistor, as indicated by the 2SA prefix.

Sized at 49.6 KB, this PDF is named 2SA2014, which under the Japanese JIS system identifies a PNP bipolar transistor.

The 2SA1962, a PNP bipolar transistor by its JIS 2SA prefix, is documented here in a 174 KB PDF. Filed as a schematic, it is most likely the manufacturer datasheet.

Datasheet PDF for the 2SA1048, with an L in brackets in the name that probably refers to a gain rank or variant, though this is not explained.

Filed as a schematic, this 145 KB PDF is named only 2N6770, a JEDEC-registered semiconductor number. No host device or board is mentioned.

PDF documentation of the 1SV307 diode, about 69 KB and listed as a schematic. The part number follows the JIS 1SV pattern, which Toshiba uses for variable-capacitance…

ZIP archive with a PDF schematic for a board coded IPISB-AB, 1.07 MB in size. No brand, revision or system model is stated.

Here the subject is the 2SD2167, delivered as a 51.2 KB PDF filed as a schematic. By JIS convention the 2SD prefix belongs to NPN bipolar transistors for low-frequency…

A 171 KB PDF for the 4N39 and 4N40 optocouplers, listed under schematics but in practice a component datasheet.

Family datasheet spanning the 4N29 through 4N33 optocouplers, a 157 KB PDF listed in the schematic category.

The 2SD1724 part number is all the name gives, and the 145 KB PDF is tagged as a schematic, though a file named this way is normally a transistor datasheet.

The 2SK2843 is the only detail in this file name, an N-channel FET designation under the Japanese JIS scheme.

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.

The 2SK1891 transistor is covered by this 96.0 KB PDF, which the index lists as a schematic.

The 2SK1867 is named in this small 33.9 KB PDF, catalogued under schematics. Because 2SK is the Japanese prefix for N-channel field-effect transistors, expect a brief…

Named solely for the 2SK1848, this 103 KB PDF is indexed as a schematic but is most likely a component datasheet.

The 2SK1747 is the subject of this 184 KB PDF. Japanese JIS designation 2SK means an N-channel field-effect transistor, so the file is probably the manufacturer…

Datasheet PDF for the 2SK1472 N-channel field-effect transistor, inferred from the Japanese 2SK designation, though the catalogue files it under schematics.

Data for the 2SK1443 in a 110 KB PDF, indexed as a schematic though it is presumably the transistor's data sheet.

PDF reference for the 2SJ338, 113 KB, filed under the schematic category. No board number, brand or revision is present in the name.

The 2SJ287 is covered in this 96.7 KB PDF. Only the part number is present in the name, so no equipment details can be given.

Covering the 2SD1246, this 85.2 KB PDF is filed among schematics but its name is simply a JIS transistor number.

Only 21.9 KB, this PDF relates to the 2SD1048 and is indexed among schematics, though the name identifies a discrete part.

Close in number to its neighbours, 2SC4645 is another JIS-coded NPN transistor, and this 147 KB PDF is probably its datasheet.

A small 30.6 KB PDF for the 2SC4637LS. The LS suffix appears to denote a particular package or lead variant of the 2SC4637 NPN transistor, so check the outline drawing…

At 280 KB, this PDF for the 2SC5233 is one of the larger documents in the series and is indexed as a schematic, though the name identifies a single part.