One PDF of 74.3 KB covering two variants, 11DQ03 and 11DQ04, as the combined name indicates.

2.1 amplifier schematic attributed to Amiru, a compact 98.7 KB PDF. The name gives no details about the ICs or power level, so the diagram itself must be read for…

PDF schematic for the Osaka platform board 6050A0059801, revision MB-A01, marked CS1 with part code TC7778zba000 and an early 2004 date code.

Revision 5 of a datasheet for the 4N25 optocoupler, a 281 KB PDF. The 4N25 is one of the oldest and most common phototransistor-output isolators, often found in power…

The 3SK263 is covered by an 82.7 KB PDF placed in the schematic category, though a part-number name like this normally indicates a component datasheet.

Part documentation for the 2SK2731, a 113 KB PDF placed in the schematic category. JIS naming assigns the 2SK prefix to N-channel field-effect transistors, so the…

Only 29.3 KB, this PDF named 2SK2380 sits under schematics but is most likely a brief datasheet for an N-channel FET, per the Japanese JIS 2SK prefix.

PDF of 104 KB for semiconductor 2SK1421, classed as a schematic in the index. JIS numbering places 2SK parts in the N-channel FET family; maker and package cannot be…

The 2SJ584LS is documented in this 42.9 KB PDF, placed in the schematic category but named as a single-part datasheet.

The 2SD1061 is the subject of this 102 KB PDF, placed in the schematic section though it reads as a part datasheet.

PDF datasheet, 89.5 KB, for the 2SC4633 transistor, though the index files it under schematics.

A 152 KB PDF titled with the device number 2SC4443 and grouped among schematics. In the JIS scheme, codes starting with 2SC refer to NPN transistors for high-frequency…

Plain 2SC5111 is the whole name of this 245 KB PDF, filed in the schematic section yet most likely the transistor datasheet.

A 149 KB PDF carrying the bare transistor number 2SC4837. Though placed in the schematic category, the JIS prefix 2SC identifies an NPN transistor, so the file is…

Transistor number 2SC4824 is all the name of this 141 KB PDF reveals; the index places it among schematics.

Datasheet PDF for the 2SC3311A, the A suffix denoting a variant of the base 2SC3311 number, filed under schematics at 40.5 KB.

A 308 KB PDF named after the 2SC2753 semiconductor and placed in the schematic section.

PDF documentation, 75.9 KB, for the 2SA1434 transistor. Under the JIS scheme the 2SA prefix denotes a PNP transistor, and no other variant, maker or package information…

Transistor datasheet for the 2SA2070 in PDF format, roughly 189 KB. The 2SA prefix places it in the JIS category of PNP transistors for high-frequency use.

Plain-named 2N3905 document in PDF format, 62.6 KB, catalogued with schematics but most likely a one-part datasheet.

Datasheet for the 1T412 transistor, 59.8 KB in PDF format and stored with schematics. The 1T prefix places it among Soviet germanium transistors.

Catalogued as a schematic, this 155 KB PDF named 1F1-1F7 indicates a numbered component series, most plausibly rectifier diodes in steps of reverse voltage.

Indexed under schematics, this 83.0 KB PDF is named 12tts08, a code that resembles International Rectifier or Vishay thyristor (SCR) part numbering.

Scanned photos of Apple logic board 820-01598, with J213 and X1536 identifiers, as a 1.33 MB PDF.

2.1 channel hi-fi audio amplifier circuit by Technical Mriganka, a 164 KB PDF. The title does not name the amplifier ICs or output devices, so identify them from the…

Named for the 2SD1618 transistor, a 116 KB PDF listed as a schematic but most plausibly the part's datasheet.

PDF of 184 KB bearing the part number 2SD1410A, kept in the schematic category but best treated as the transistor's datasheet, with the A suffix denoting a variant of…

A compact 30.1 KB PDF for the 2SK2682LS. The base 2SK2682 follows JIS numbering for N-channel field-effect transistors, while the LS suffix marks a variant, often a…

Specification PDF of 34.9 KB for the 2sk2577, grouped under schematics although the name is a plain part number.

A 32.0 KB PDF for part 2SJ616, placed among schematics but named like an individual transistor datasheet.

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.

Indexed as a schematic, this 59 KB PDF carries the name 2SC4655 with an E suffix, which plausibly denotes an English-language version.

The 2SC4404 is covered by this 114 KB PDF, placed under schematics in the catalogue. According to Japanese JIS numbering, 2SC parts are NPN bipolar transistors, so the…

Datasheet-type PDF for the 2SC5564, 50.0 KB, placed in the schematic category. No model or board appears in the name; the 2SC prefix indicates an NPN transistor for…

Datasheet for the 2SC3939 transistor in a 51.2 KB PDF, catalogued as a schematic; the _E ending likely marks an English-language release, though the name does not…

PDF component sheet, 60.3 KB, covering the 2SC4920 NPN transistor from the JIS 2SC series.

Covering the plain 2SC1627 without suffix, this 211 KB PDF sits in the schematic category but names only a part number.

Small 41.7 KB PDF for the 2SA1961, with an unexplained E suffix that may mark a document edition.

Component sheet for the 2SA1925 in a 198 KB PDF, labeled as a schematic though the plain part-number name suggests a manufacturer datasheet.

Datasheet-style PDF of 41.8 KB covering the 2SA1790, a JIS-coded PNP bipolar transistor, placed in the schematic section of the catalogue.