Component reference in PDF form for the 2SC4002, 77.6 KB, filed in the schematic category.

Reference PDF for the 2SC5420 transistor, 69.2 KB, indexed as a schematic though the bare part number points to a component datasheet.

Brief datasheet-type PDF for the 2SC3920 at 30.5 KB, indexed under schematics. The file name contains only the part number.

Component document for the 2SC5000, a 179 KB PDF placed among schematics. The file name gives nothing besides the part number.

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.

A 53.1 KB PDF referencing the 2SC3902, an NPN bipolar transistor under JIS numbering, where 2SC marks that device class.

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

PDF component sheet for the 2SC3481, 131 KB in size and catalogued with schematics. The file name holds just the part number; the 2SC prefix is the JIS designation for…

Transistor datasheet for the 2SC3474, supplied as a 303 KB PDF and filed under schematics.

A small PDF filed as a schematic, though the name is simply the part number 2SC3468, which follows the Japanese JIS semiconductor scheme where the 2SC prefix marks an…

Part number 2SC3401 is the only information in the name of this 87.3 KB PDF, so no device or board is identified.

Datasheet PDF of 172 KB carrying the part number 2SC5358, listed under schematics in the index.

Covering the 2SC5353, this 208 KB PDF sits in the schematic category but, judging by the name, documents a single transistor.

A 97.4 KB PDF for the 2SC3151, an NPN bipolar transistor according to its JIS 2SC designation.

Component reference for the 2SC3124, a 294 KB PDF indexed as a schematic. The JIS 2SC designation identifies it as an NPN bipolar transistor, normally marked C3124.

The 2SC3116 NPN transistor is described in this 47.6 KB PDF, placed in the schematic category.

Catalogued as a schematic, this 190 KB PDF is named after the 2SC2999, a part number in the Japanese JIS scheme where the 2SC prefix marks an NPN bipolar transistor.

Reference document for the 2SC1815, a 310 KB PDF classed as a schematic. In JIS numbering the 2SC prefix denotes an NPN bipolar transistor, and the file is most likely…

Reference document for the 2SB1398 transistor, with an _E suffix in the name that is not explained and may indicate an edition or language version.

At 249 KB this PDF is the largest in the group and covers the 2SA1618, indexed as a schematic but in practice a transistor reference.

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

A compact 37.5 KB PDF carrying the name 2SA2044, a Japanese JIS transistor number in which 2SA stands for a PNP bipolar type.

The 2SA1315 PNP transistor, per the Japanese JIS 2SA prefix, is the subject of this 220 KB PDF.

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

Component sheet for the 2SA1866 PNP bipolar transistor, stored as a 55.4 KB PDF. The 2SA prefix follows Japanese JIS conventions for PNP devices.

A 207 KB PDF for the 2SA1736, filed in the index as a schematic but named after a single semiconductor part rather than a board.

Specification document for the 2SA1728, provided as a 91.2 KB PDF with no board or device model in its name.

The 2SA1703 is covered by this 126 KB PDF, listed in the schematic category although only the part number appears in the name.

A compact 43.5 KB PDF filed under schematics and named for the 2N6547, a part number from the JEDEC 2N registration series for discrete semiconductors.

PDF reference sheet, 214 KB, for the 2N6282 discrete device, listed as a schematic but most likely a datasheet.

A 90.8 KB PDF titled only with the part number 2N5550, so no board, laptop model or revision can be matched.

Covering the 1SS394, this 66.2 KB PDF is filed as a schematic but most likely holds a component datasheet, since 1SS denotes Japanese-registered small-signal silicon…

PDF file for the 1SS388 part, 68.6 KB, catalogued under schematics though most likely a single-component datasheet.

Only the component code 1SS294 appears in this 69.1 KB PDF name, so it cannot be tied to any specific board or laptop.

A 126 KB PDF filed under schematics, though its name, 1SS269, points to a semiconductor part rather than a circuit board.

Filed as a schematic, this 69.5 KB PDF carries the part number 1SS226 and is best read as a component datasheet.

Small PDF of 92.1 KB filed under schematics, though its name is simply the part number 2SD1998, so it is almost certainly a component datasheet rather than a board…

A 115 KB PDF named after the 2SD1625 part number, catalogued as a schematic but in practice most likely the transistor's datasheet.

PDF covering the 3SK189, about 178 KB in size and listed in the schematic category, though the name points to a single component datasheet.

A 111 KB PDF for the 2SD2281, which under the Japanese JIS system is an NPN transistor from the low-frequency 2SD series.