• Name Type Board Source Added Size
  • 2SD2127

    PDF datasheet of roughly 238 KB describing the 2SD2127 NPN transistor in the Japanese 2SD series. Although labelled as a schematic, it is a single-component reference.

    Schematic · 238 KB · 2 Aug 2026
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    238 KB
  • 2SD2120

    Small 72 KB PDF giving the specifications of the 2SD2120 transistor, an NPN type by its Japanese JIS prefix.

    Schematic · 71.8 KB · 2 Aug 2026
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    71.8 KB
  • 2SD2117

    Datasheet for the 2SD2117, filed as a schematic but actually a component specification in PDF form, about 67.5 KB.

    Schematic · 67.5 KB · 2 Aug 2026
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    67.5 KB
  • 2SD2116

    Reference sheet for the 2SD2116 NPN transistor, supplied as a 74 KB PDF. Its name follows the Japanese JIS 2SD convention and carries nothing beyond the part number.

    Schematic · 73.8 KB · 2 Aug 2026
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    73.8 KB
  • 2SD1800

    The 2SD1800 transistor is covered by this 79 KB PDF datasheet. Under JIS numbering, 2SD denotes an NPN transistor for low-frequency service, often used in switching…

    Schematic · 78.9 KB · 2 Aug 2026
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    78.9 KB
  • 2SD1799

    PDF specification of about 78 KB for the 2SD1799 NPN transistor, named in the Japanese 2SD series and companion in numbering to the neighbouring 2SD1800 sheet.

    Schematic · 78.3 KB · 2 Aug 2026
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    78.3 KB
  • 2SD1784

    Datasheet for the 2SD1784 transistor in PDF format, roughly 153 KB, listed among schematics. The 2SD designation marks an NPN low-frequency device under the JIS system.

    Schematic · 153 KB · 2 Aug 2026
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    153 KB
  • 2sd1782k

    Part datasheet for the 2SD1782K, an NPN transistor named under the Japanese JIS scheme, with the K suffix indicating a particular variant or package.

    Schematic · 92.9 KB · 2 Aug 2026
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    92.9 KB
  • 2sd1781k

    Specification sheet in PDF, around 82 KB, for the 2SD1781K NPN transistor of the JIS 2SD series; the K suffix denotes a specific version of the base part.

    Schematic · 81.6 KB · 2 Aug 2026
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    81.6 KB
  • 2sd1766

    PDF datasheet of about 125 KB covering the 2SD1766 NPN transistor, part of the Japanese JIS 2SD numbering.

    Schematic · 125 KB · 2 Aug 2026
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    125 KB
  • 2sd1760

    The 2SD1760 NPN transistor is documented in this 77 KB PDF, categorised as a schematic though it is a component datasheet.

    Schematic · 77.0 KB · 2 Aug 2026
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    77.0 KB
  • 2sd1757k

    Compact 46 KB PDF datasheet for the 2SD1757K, an NPN transistor under Japanese JIS designation, with a K suffix marking its variant.

    Schematic · 46.4 KB · 2 Aug 2026
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    46.4 KB
  • 2SD1725

    Filed as a schematic, this 53 KB PDF is named after the 2SD1725 part number, so it is most likely a component datasheet rather than a board diagram.

    Schematic · 53.0 KB · 2 Aug 2026
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    53.0 KB
  • 2SD1724

    The 2SD1724 part number is all the name gives, and the 145 KB PDF is tagged as a schematic, though a file named this way is normally a transistor datasheet.

    Schematic · 145 KB · 2 Aug 2026
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    145 KB
  • 2sd2114ks

    This PDF of about 124 KB covers the 2SD2114 transistor with a KS suffix; the suffix is not explained by the name and may denote a gain class or package variant.

    Schematic · 124 KB · 2 Aug 2026
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    124 KB
  • 2SD2100

    Listed under schematics, the 2SD2100 PDF of 144 KB is in practice a reference sheet for a single discrete part.

    Schematic · 144 KB · 2 Aug 2026
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    144 KB
  • 2SD2099

    The 2SD2099 part number is the only detail in this 126 KB PDF name, which points to a datasheet for a Japanese-coded transistor.

    Schematic · 126 KB · 2 Aug 2026
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    126 KB
  • 2sd2098

    For the 2SD2098 transistor, this 159 KB PDF is categorised as a schematic but follows the usual naming of a part datasheet.

    Schematic · 159 KB · 2 Aug 2026
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    159 KB
  • 2SD2093

    Named after the 2SD2093, this PDF of 146 KB is most likely the component datasheet for that Japanese transistor.

    Schematic · 146 KB · 2 Aug 2026
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    146 KB
  • 2SD2092

    At 242 KB, the 2SD2092 PDF is one of the larger files in this series and carries no information beyond the part number.

    Schematic · 242 KB · 2 Aug 2026
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    242 KB
  • 2SD2088

    Only the part number 2SD2088 appears in the name of this 171 KB PDF, so treat it as the datasheet for that transistor.

    Schematic · 171 KB · 2 Aug 2026
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    171 KB
  • 2SD2079

    The 2SD2079 PDF, 219 KB in size, is indexed as a schematic yet corresponds to a single discrete component.

    Schematic · 219 KB · 2 Aug 2026
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    219 KB
  • 2SD2075A

    This 244 KB PDF covers the 2SD2075A; the trailing A marks a variant of the base 2SD2075 type, though the name does not say how it differs.

    Schematic · 244 KB · 2 Aug 2026
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    244 KB
  • 2SD2074 E

    A compact 49.9 KB PDF for the 2SD2074, with an _E suffix in the name that is not explained and could indicate a language edition or document revision.

    Schematic · 49.9 KB · 2 Aug 2026
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    49.9 KB
  • 2SD2526

    Labelled 2SD2526, this 192 KB PDF contains reference data for a Japanese-coded transistor rather than a device-level circuit.

    Schematic · 192 KB · 2 Aug 2026
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    192 KB
  • 2SD2525

    Datasheet-style PDF of 179 KB named for the 2SD2525, catalogued as a schematic but describing just one component.

    Schematic · 179 KB · 2 Aug 2026
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    179 KB
  • 2SD2500

    The name offers nothing beyond the 2SD2500 part number, and the 250 KB PDF is almost certainly that transistor's datasheet.

    Schematic · 250 KB · 2 Aug 2026
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    250 KB
  • 2SD2499

    For the 2SD2499 transistor, this 269 KB PDF provides component-level data despite its schematic category.

    Schematic · 269 KB · 2 Aug 2026
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    269 KB
  • 2SD2498

    One of the larger sheets in the set at 271 KB, this PDF is named after the 2SD2498 and serves as a transistor datasheet.

    Schematic · 271 KB · 2 Aug 2026
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    271 KB
  • 2SD2481

    A 167 KB PDF identified only by the 2SD2481 part number, which points to the datasheet for that transistor rather than a board schematic.

    Schematic · 167 KB · 2 Aug 2026
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    167 KB
  • 2SD2480

    This datasheet PDF of 179 KB covers the 2SD2480 transistor and contains no further detail in its name.

    Schematic · 179 KB · 2 Aug 2026
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    179 KB
  • 2SD2474 E

    Small 39.9 KB PDF for the 2SD2474, carrying an _E suffix whose meaning the name does not state; it may reflect a language or edition marker.

    Schematic · 39.9 KB · 2 Aug 2026
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    39.9 KB
  • 2SD2462

    Named for the 2SD2462, this 184 KB PDF is effectively a datasheet for a Japanese-registered transistor.

    Schematic · 184 KB · 2 Aug 2026
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    184 KB
  • 2SD2461

    The only detail in this 183 KB PDF name is the part number 2SD2461, indicating the datasheet for that transistor.

    Schematic · 183 KB · 2 Aug 2026
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    183 KB
  • 2SD1723

    Indexed as a schematic, the 2SD1723 PDF of 146 KB is a component sheet for one discrete transistor.

    Schematic · 146 KB · 2 Aug 2026
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    146 KB
  • 2SD1722

    This 145 KB PDF carries the 2SD1722 part number and nothing more, so it is best treated as that transistor's datasheet.

    Schematic · 145 KB · 2 Aug 2026
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    145 KB
  • 2SD1685

    A 100 KB PDF for the 2SD1685, categorised as a schematic but named in the manner of a single-part datasheet.

    Schematic · 100 KB · 2 Aug 2026
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    100 KB
  • 2SD1684

    Component document for the 2SD1684, filed under schematics but named after a Japanese JIS part number rather than a board.

    Schematic · 146 KB · 2 Aug 2026
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    146 KB
  • 2SD1683

    The 2SD1683 is the subject of this 146 KB PDF, which is catalogued as a schematic although the name is a transistor part number.

    Schematic · 146 KB · 2 Aug 2026
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    146 KB
  • 2SD1682

    PDF reference sheet for the 2SD1682 transistor, 150 KB, stored in the schematic category.

    Schematic · 150 KB · 2 Aug 2026
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    150 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.