File name 2sk198 is a JIS semiconductor number, so this 31.8 KB PDF, though catalogued as a schematic, is best treated as a brief component datasheet.

A 318 KB PDF covering the 2SK2882, listed under schematics but almost certainly a datasheet given the bare part number in its name.

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

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.

Short PDF of 23.2 KB named for the 2SK2324 part. In JIS nomenclature 2SK denotes an N-channel FET, so this schematic-labelled file is presumably a brief datasheet.

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…

Datasheet PDF, 292 KB, for the 2SK1829 transistor. Under JIS naming, 2SK marks an N-channel FET; the file name gives only the part number, with no maker or package…

Datasheet-style PDF for the 2SK1117, with the name noting NTE2379 as its equivalent, meaning the NTE replacement line lists that part as a cross-reference.

A PDF filed under schematics but named after the 2SK404, a part number in the Japanese JIS semiconductor scheme, where the 2SK prefix marks an N-channel field-effect…

Catalogued among schematics, the 43.5 KB PDF called 2SJ499's neighbour 2SJ485 refers to a semiconductor part; under the JIS scheme the 2SJ prefix designates a P-channel…

An 82.4 KB PDF bearing only the part number 2SJ188; the 2SJ prefix in Japanese numbering denotes a P-channel field-effect transistor, so this is likely its datasheet…

Named after the transistor type 2SC4646, this 148 KB PDF most likely contains the part datasheet. No board, model or revision is mentioned.

Brief 40.6 KB PDF for the 2SC4543, carrying an _E suffix whose meaning the name does not explain, and filed under schematics.

A compact 93.8 KB PDF carrying only the designation 2SC4476 in its name. Under JIS numbering the 2SC prefix identifies an NPN transistor of the high-frequency class, so…

Datasheet-style PDF of 119 KB for the 2SC4401, listed in the index under schematics although the name points to a single semiconductor part.

Datasheet PDF for the 2SC5537 transistor, 32.5 KB, catalogued with schematics. In the JIS scheme 2SC denotes an NPN bipolar part, so this is component data rather than a…

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

For the 2SC5534 transistor, this 44.8 KB PDF sits in the schematic category but, going by the JIS 2SC code for NPN bipolar devices, is the part datasheet.

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

Datasheet PDF, 81.8 KB, for the 2SC3997 transistor, placed in the schematic listing. JIS numbering uses 2SC for NPN bipolar transistors; nothing else, such as maker or…

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.

A 52.6 KB PDF for the 2SC3933, labelled with an _E suffix and catalogued as a schematic.

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

Small 44.3 KB PDF describing the 2SC5419, with the _E suffix seen across this series. It sits in the schematic category, yet the name is a JIS transistor number: 2SC…

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

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.

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.

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.

Reference document for the 2SC3112 transistor, supplied as a 257 KB PDF and filed under schematics. The name holds only the part number.

An 84.6 KB PDF for the 2SC3071, filed as a schematic. The name supplies nothing beyond the part number, so this is probably a compact datasheet.

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.

Indexed as a schematic, this 40.2 KB PDF is named 2SB1220 with an _E suffix and almost certainly contains the datasheet for that JIS transistor.

This 52.0 KB PDF covers the 2SB1218A, the A suffix being part of the stated part number, with a further _E tag in the name; despite the schematic category it is likely a…

PDF covering the 2SA1452A transistor, 233 KB, indexed in the schematic section. The 2SA prefix in the JIS system marks a PNP device intended for high-frequency use, and…

An 85.0 KB PDF covering the 2SA1965, whose 2SA prefix under JIS rules marks a PNP bipolar transistor.

The 2SA1202 is covered by this 112 KB PDF, which the index lists as a schematic; with only the part code in the name, it is most likely the component datasheet.