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.

An 89.5 KB PDF for the 2SA1590 transistor, listed under schematics but almost certainly a part datasheet given the name.

Reference PDF, 88.0 KB, for the 2SA1582 transistor. The file name states only the part number and nothing about the maker, package or application.

Named after the 2SA1537 transistor, this 41.0 KB PDF sits in the schematic category but should contain the manufacturer data for that part.

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…

Small 21.4 KB PDF for the 2SA733 PNP transistor, with the UTC tag in the name pointing to the Unisonic Technologies version of this widely used general-purpose part.

Specifications for the 2SA1873 PNP transistor, provided as a 247 KB PDF. The 2SA prefix comes from the JIS semiconductor naming system and denotes a PNP bipolar part, so…

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.

A 755 KB PDF bearing only the part code 2N5484 and grouped with schematics. Matching sizes with the 2N5485 and 2N5486 files hint at a common datasheet for the whole…

Unisonic Technologies (UTC) edition of the 2N5401 datasheet, a high-voltage PNP small-signal transistor, kept as a 21.0 KB PDF.

Larger 546 KB PDF datasheet covering the 2N5400, a high-voltage PNP small-signal transistor; the size suggests a scanned or multi-part document.

Datasheet for the 1N5402, a 200 V member of the 3 A 1N5400 rectifier family, kept as a 43.4 KB PDF and listed under schematics. The name states only the part number.

Series datasheet spanning the 1N5391 to 1N5399 diodes, a 42.7 KB PDF catalogued as a schematic.

Datasheet for the 1N4937 diode, filed in the schematic category, a small 45.5 KB PDF. The 1N4933 to 1N4937 family are fast recovery rectifiers in an axial package, and…

Datasheet for the 1N4933 diode, a small 45.5 KB PDF filed in the schematic category. The 1N4933 opens the 1N4933 to 1N4937 fast recovery rectifier series, which offers…

Datasheet for the 1N4150 diode, a compact 26.1 KB PDF filed in the schematic category. The 1N4150 is a fast switching small signal diode in a glass package that offers a…

Datasheet PDF for a part identified only as 1n4044, filed in the schematic category at 93.5 KB.

At 86.1 KB, this PDF named 175bgq045 is listed as a schematic, yet the code fits a high-current Schottky rectifier, with 045 typically indicating a 45 V reverse voltage.

Sister document to the 45 V variant, this 85.4 KB PDF for 175bgq030 is filed as a schematic but reads as a component datasheet for a Schottky rectifier, the 030 suffix…

Indexed as a schematic, this 83.3 KB PDF named 150k most likely documents a stud-mount power rectifier diode series, as the short code follows the pattern used for such…

Catalogued as a schematic, this 203 KB PDF named 87cnq020a is most likely a datasheet for a low-voltage dual Schottky rectifier module, the 020 typically denoting a 20 V…

A 206 KB PDF filed as a schematic and identified only by the code 50RIA, with no laptop model, brand or board revision.

Named 30LJQ150 and filed as a schematic, this 51.4 KB PDF looks like the datasheet for a discrete rectifier, with 150 plausibly indicating a higher voltage grade than…

Indexed as a schematic, the 54.3 KB PDF named 30LJQ045 is most likely a datasheet for a rectifier diode, the 045 grade within the LJQ series present in this collection.

This 112 KB PDF in the schematic section is named 20ETF-S-HV. The name lists no laptop model, board number or revision, only a part-style code with S and HV suffixes.

Covering the 8EWF10S and 8EWF12S, this 152 KB PDF is filed as a schematic but follows the part numbering of an International Rectifier or Vishay rectifier series.

PDF covering the bottom side of the board labelled Cyperss Point, likely a misspelling of Cypress Point. It pairs with the top-side file in this collection.

Schematic of a 1000 W audio power amplifier rated into 2 ohms, marked R2, RLVA SE1, 2012 revision 1, in a 110 KB PDF.

Circuit diagram of a Dell PA-10 laptop adapter, model PA-1900-02D, compressed into a 367 KB RAR archive.

Schematic for the ADP-90SB BB adapter, a version tagged 230512 v3, compressed into a 258 KB rar.

Very large 7-Zip archive of 1.61 GB whose Russian name simply means schematics, so it gives no hint of the brands, models or boards included.

PDF schematic identified only by a number, giving no device, brand or revision information; it weighs 43.2 MB, typical of high-resolution or many-page circuit diagrams.

Small 57.3 KB PDF for the 2SC5060, filed under schematics though the name suggests a transistor part sheet.

PDF for the 2SC1172, 74.4 KB, listed among schematics with no further detail in its name.

PDF for the BU4508DX, a small 48.8 KB document filed as a schematic but most likely the part datasheet.

PDF of 77.6 KB named 2SD1620 and filed with schematics; the name carries nothing beyond the part number, which points to a component datasheet.

Smaller 137 KB PDF tied to the 2SK2606, a JIS-style designation where 2SK indicates an N-channel field-effect transistor.

The 2SJ339 appears in this small PDF of roughly 40.7 KB. The name carries only the part number, with no hint of the equipment it came from.

Catalogued as a schematic, this 41.7 KB PDF bears the part number 2SC5611 and should be the datasheet for that NPN bipolar transistor.