The 2SK2915 is covered by this 434 KB PDF, indexed under schematics but most likely a component datasheet, since the name carries only the transistor number.

PDF of 111 KB describing the 2SK2467, catalogued as a schematic but named for a discrete transistor.

The 2SK1900 transistor is the subject of this 99.3 KB PDF, catalogued with schematics. Under the JIS convention, 2SK designates an N-channel field-effect transistor, so…

Semiconductor datasheet, 102 KB PDF, for the 2SK1467, judging by the Japanese 2SK prefix that marks N-channel FETs.

Part 2SK1438 is the subject of this 108 KB PDF, filed in the index as a schematic but almost certainly a component datasheet.

34.2 KB PDF for the 2SK1255 N-channel MOSFET, listed under schematics in the index although it is a single-component sheet.

Component documentation for the 2SK1119, a part number in the Japanese 2SK series that designates N-channel field-effect transistors.

A compact 55.5 KB PDF covering the 2SD1304, catalogued as a schematic even though the 2SD number indicates a discrete NPN transistor under JIS numbering.

Part documentation for the 2SC5266A in PDF form, 182 KB, listed among schematics. JIS numbering makes 2SC an NPN bipolar transistor, while the A suffix generally…

Covering the 2SC4636LS, this 30.6 KB PDF is likely a brief datasheet for a package variant of the 2SC4636 NPN transistor.

Datasheet-style PDF of 28.3 KB for the 2SC4631LS, filed under schematics. As a 2SC-prefixed JIS part it is an NPN bipolar transistor.

A 106 KB PDF named only 2SC4459, placed in the schematic category of the index. That JIS-style code marks an NPN bipolar transistor designed for high-frequency…

The largest of this group at 465 KB, the PDF named 2SC4394 is most likely a full datasheet for that transistor rather than a board schematic, despite its index label.

The 2SC4249 transistor is the subject of this 263 KB PDF, filed under schematics. The name carries the part number alone, so maker and revision are not stated.

Filed under schematics, this 117 KB PDF is named for the 2SC5563, a part number following the Japanese convention in which 2SC marks an NPN bipolar transistor.

A 59.6 KB PDF for the 2SC829, an NPN transistor under JIS numbering; the _E suffix in the name is not explained and may indicate a language edition or document revision.

PDF reference, 44.2 KB, for the 2SC5539 NPN bipolar transistor, placed in the schematic section of the index.

Reference document in PDF form for the 2SC5361, a part number following the Japanese JIS scheme where the 2SC prefix denotes an NPN bipolar transistor.

A 320 KB PDF dedicated to the 2SC3011, indexed as a schematic but most likely a transistor datasheet. Nothing besides the part number appears in the name.

Reference sheet for the 2SC2792, supplied as a 186 KB PDF and listed in the schematic category, although the name points to a component datasheet.

The 2SB621 in this 51.4 KB PDF is a PNP bipolar transistor according to the JIS prefix, so the file, filed under schematics, should be a part datasheet; _E most likely…

The 2SB1378 transistor is documented in this 44.3 KB PDF; the _E suffix in the name is unexplained and may denote an edition or language version.

Datasheet-style PDF, 201 KB, for the 2SB908 transistor. Japanese JIS numbering uses 2SB for PNP transistors intended for low-frequency service, which commonly means…

Datasheet PDF, 24.1 KB, for the 2SB772L variant from UTC, likely Unisonic Technologies.

Datasheet for the 2N5415, a high-voltage PNP bipolar transistor, stored as a compact 45.3 KB PDF in the schematic section.

This 52.5 KB PDF carries the code 1T406 and is indexed as a schematic, although the name says nothing about the equipment it belongs to.

Reference sheet for the 1SS389, a 66.7 KB PDF indexed as a schematic. Nothing in the filename beyond the part number and an underscore identifies a device, brand or…

Named only 1SS366, this 50.5 KB PDF is catalogued as a schematic yet points to a single semiconductor: in JIS designations 1SS stands for a small-signal silicon diode.

Datasheet for the 1N5408, the 1000 V top grade of the 1N5400 series of 3 A general-purpose silicon rectifiers, stored as a 43.4 KB PDF under schematics.

PDF datasheet, 42.7 KB, for the 1N5392 diode, categorised as a schematic though it describes a discrete component.

PDF datasheet for the 1N4007 general purpose silicon rectifier, 68.9 KB, catalogued in the schematic section.

A 88.2 KB PDF catalogued as a schematic, its name covering a range from 1SMA5.0AT3 to 78AT3, a naming pattern associated with unidirectional transient voltage suppressor…

PDF of 184 KB catalogued as a schematic, named only with the range 1A1 to 1A9, which suggests a datasheet covering a series of numbered component variants rather than a…

Catalogued as a schematic, this 209 KB PDF is labelled 85CNQ015, a code that reads like a power semiconductor part number rather than a laptop board, so it is most…

Filed as a schematic, this 38.7 KB PDF is named only 50WQ04F and gives no laptop model or board information.

This 74.6 KB PDF carries the code 16YQ030C and is listed as a schematic, although nothing in the name points to a laptop, board number or revision.

The short name 12tq on this 179 KB PDF suggests a family-level datasheet for Schottky rectifiers in the International Rectifier or Vishay style, covering several voltage…

PDF of around 162 KB for the 8EWF02S, 8EWF04S and 8EWF06S, three voltage grades sharing one document and indexed as schematics.

PDF schematic labelled Z84J, roughly 2.6 MB. The name states no brand, revision or model, so identification relies on the title block inside and on the code silkscreened…

Schematic for the Quanta X1B-10L board with discrete graphics, revision 1A, dated 04062015, in a 1.92 MB PDF. The 10L suffix likely refers to a ten-layer PCB build.