• Name Type Board Source Added Size
  • 2SD1908

    The 2SD1908 transistor is documented in this 85.8 KB PDF, which the index files as a schematic, although a JIS part number like this normally indicates a datasheet.

    Schematic · 85.8 KB · 2 Aug 2026
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    85.8 KB
  • 2SD2352

    A fairly detailed 200 KB PDF for the 2SD2352, a JIS-numbered NPN transistor, where the 2SD prefix denotes NPN low-frequency parts.

    Schematic · 200 KB · 2 Aug 2026
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    200 KB
  • 2SD2345 E

    The 42.4 KB PDF is named for the 2SD2345 and carries an _E suffix, whose meaning the name does not explain.

    Schematic · 42.4 KB · 2 Aug 2026
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    42.4 KB
  • 2SD2337

    The 2SD2337 is the part this 41.0 KB PDF documents, and as a 2SD number under JIS rules it is an NPN transistor aimed at low-frequency circuits.

    Schematic · 41.0 KB · 2 Aug 2026
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    41.0 KB
  • 2SD2324

    A 68.3 KB PDF bearing the name 2SD2324, a Japanese JIS designation for an NPN transistor, since 2SD marks NPN low-frequency devices.

    Schematic · 68.3 KB · 2 Aug 2026
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    68.3 KB
  • 2SD2321 E

    Datasheet PDF, 43.0 KB, for the 2SD2321, with an _E suffix carried over from the original name, though the suffix itself is not explained.

    Schematic · 43.0 KB · 2 Aug 2026
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    43.0 KB
  • 2sd2318

    Stored under a lowercase name, this 52.3 KB PDF covers the 2sd2318 transistor. In the Japanese JIS scheme the 2SD series contains NPN devices for low-frequency duty, so…

    Schematic · 52.3 KB · 2 Aug 2026
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    52.3 KB
  • 2SD2285

    The 2SD2285 is documented in this 128 KB PDF. Its JIS part number, with the 2SD prefix, places it among NPN transistors intended for low-frequency circuits such as…

    Schematic · 128 KB · 2 Aug 2026
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    128 KB
  • 2SD2284

    A 116 KB PDF associated with the 2SD2284 NPN transistor, a part numbered under the Japanese JIS standard, where 2SD denotes NPN low-frequency types.

    Schematic · 116 KB · 2 Aug 2026
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    116 KB
  • 2SD2282

    Named after the 2SD2282, this 129 KB PDF is most likely the transistor's datasheet, despite the schematic classification in the index.

    Schematic · 129 KB · 2 Aug 2026
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    129 KB
  • 2SD2281

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

    Schematic · 111 KB · 2 Aug 2026
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    111 KB
  • 2SD1907

    The 2SD1907 is covered by this 165 KB PDF, which is catalogued as a schematic but by name is a component datasheet.

    Schematic · 165 KB · 2 Aug 2026
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    165 KB
  • 2SD1906

    Catalogued as a schematic, this 156 KB PDF is named after the 2SD1906, a Japanese JIS part number, so it is most likely the component datasheet for that transistor…

    Schematic · 156 KB · 2 Aug 2026
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    156 KB
  • 2SD1905

    The name carries only a part number, 2SD1905, which points to a semiconductor datasheet even though the entry is filed under schematics.

    Schematic · 112 KB · 2 Aug 2026
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    112 KB
  • 2SD1904

    A 166 KB PDF for the 2SD1904 transistor, listed here as a schematic but by its name almost certainly the manufacturer data sheet.

    Schematic · 166 KB · 2 Aug 2026
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    166 KB
  • 2SD1903

    Filed under schematics, though the file name is simply the JIS part number 2SD1903, so expect a component datasheet in this 131 KB PDF.

    Schematic · 131 KB · 2 Aug 2026
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    131 KB
  • 2SD1902

    Small 45.6 KB PDF named 2SD1902, a Japanese standard transistor number; despite the schematic label it is most probably a short datasheet.

    Schematic · 45.6 KB · 2 Aug 2026
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    45.6 KB
  • 2sd1898

    Datasheet-style PDF of 118 KB for the 2SD1898, recorded in the index as a schematic but named after a single component.

    Schematic · 118 KB · 2 Aug 2026
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    118 KB
  • 2sd1897

    Named only 2sd1897, this 35.6 KB PDF is listed as a schematic, yet the name is a JIS transistor number, so it is very likely a compact datasheet.

    Schematic · 35.6 KB · 2 Aug 2026
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    35.6 KB
  • 2SD1887

    This 91.1 KB PDF covers the 2SD1887 transistor; it sits in the schematic category but the file name matches a JIS component designation, pointing to a datasheet.

    Schematic · 91.1 KB · 2 Aug 2026
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    91.1 KB
  • 2SD1886

    A 91.5 KB PDF titled with the JIS part number 2SD1886, which suggests a component datasheet even though the index tags it as a schematic.

    Schematic · 91.5 KB · 2 Aug 2026
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    91.5 KB
  • 2SK208

    Indexed as a schematic, the 305 KB PDF named 2SK208 most likely holds the datasheet for that Japanese JIS-numbered part.

    Schematic · 305 KB · 2 Aug 2026
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    305 KB
  • 2sk198

    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.

    Schematic · 31.8 KB · 2 Aug 2026
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    31.8 KB
  • 2SK192A

    PDF of 363 KB for the 2SK192A, listed among schematics but named after a single JIS part, with an A suffix that the name explicitly includes.

    Schematic · 363 KB · 2 Aug 2026
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    363 KB
  • 2SK184

    Named after the JIS designation 2SK184, this 307 KB PDF is tagged as a schematic but is most likely the device datasheet.

    Schematic · 307 KB · 2 Aug 2026
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    307 KB
  • 2SK170

    A 333 KB PDF for the 2SK170, filed under schematics though its name is a plain JIS part number, suggesting a datasheet.

    Schematic · 333 KB · 2 Aug 2026
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    333 KB
  • 2SK161

    The entry, 366 KB in PDF format, is named 2SK161 and, despite its schematic label, should contain the datasheet for that JIS-coded component.

    Schematic · 366 KB · 2 Aug 2026
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    366 KB
  • 2sk123

    Only 28.2 KB, this PDF named 2sk123 is catalogued as a schematic, but the name is a JIS transistor number, so a short datasheet is the likely content.

    Schematic · 28.2 KB · 2 Aug 2026
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    28.2 KB
  • 2SK118

    Listed as a schematic, the 307 KB PDF titled 2SK118 is by name a component datasheet for a Japanese JIS-numbered device.

    Schematic · 307 KB · 2 Aug 2026
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    307 KB
  • 2SK117

    PDF document of 299 KB named for the 2SK117, most likely a datasheet even though the catalogue lists it as a schematic.

    Schematic · 299 KB · 2 Aug 2026
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    299 KB
  • 2sk65

    Tiny 30.2 KB PDF named 2sk65, a JIS part number that indicates a component datasheet, although it is filed as a schematic.

    Schematic · 30.2 KB · 2 Aug 2026
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    30.2 KB
  • 2SK3557

    The 34.0 KB PDF named 2SK3557 is indexed as a schematic, but its name is a JIS component number, so it is almost certainly a datasheet.

    Schematic · 34.0 KB · 2 Aug 2026
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    34.0 KB
  • 2SK3495

    Covering the 2SK3495, this 28.0 KB PDF carries the schematic tag yet is named after one JIS part, pointing to a brief datasheet.

    Schematic · 28.0 KB · 2 Aug 2026
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    28.0 KB
  • 2SK3491

    Named 2SK3491, this 29.8 KB PDF is most likely the datasheet for that JIS-numbered device, despite being listed as a schematic.

    Schematic · 29.8 KB · 2 Aug 2026
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    29.8 KB
  • 2SK3488

    A 30.6 KB PDF labelled with the JIS part number 2SK3488 and filed in the schematic category, though the content should be a component datasheet.

    Schematic · 30.6 KB · 2 Aug 2026
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    30.6 KB
  • 2SK3485

    The file, a 28.4 KB PDF, is named 2SK3485 and catalogued as a schematic; the name is a JIS semiconductor number, so treat it as a short datasheet.

    Schematic · 28.4 KB · 2 Aug 2026
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    28.4 KB
  • 2SK3449

    Tagged as a schematic, this 28.3 KB PDF bears the JIS designation 2SK3449 and is best regarded as the datasheet for that component.

    Schematic · 28.3 KB · 2 Aug 2026
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    28.3 KB
  • 2SK3448

    Component data for the 2SK3448, filed under schematics but in practice a short datasheet-style PDF of 27.6 KB.

    Schematic · 27.6 KB · 2 Aug 2026
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    27.6 KB
  • 2SK3415LS

    A 32.0 KB PDF covering the 2SK3415LS transistor, catalogued as a schematic though it reads as a part datasheet. Under JEITA naming, 2SK marks an N-channel FET.

    Schematic · 32.0 KB · 2 Aug 2026
    Schematic pdf
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    32.0 KB
  • 2SK3414LS

    Reference sheet in PDF form (32.2 KB) for the 2SK3414LS, listed in the schematic section of the index.

    Schematic · 32.2 KB · 2 Aug 2026
    Schematic pdf
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    32.2 KB

About schematics

A schematic is the electrical drawing of a board: it shows how every chip, MOSFET, coil and connector is wired, which rail feeds which circuit, and what voltage or resistance you should measure at each test point. It is the document you need to trace a missing rail or a short.

Schematics are published per board, not per laptop model. The same Compal LA-E891P board can sit in several HP models, so always search by the board number printed on the PCB rather than by the sticker on the case.