The 2SJ312 is documented in this 362 KB PDF, catalogued as a schematic. Beyond the part number the name says nothing about the equipment involved.

Under the schematic category, this 99.0 KB PDF titled 2SJ187 should be the datasheet for a P-channel FET, as the JIS 2SJ prefix indicates.

Listed under schematics, this 110 KB PDF is named for the 2SD1347, an NPN bipolar transistor in the Japanese JIS 2SD series, and is probably its datasheet.

Separate from the UTC version, this 43.2 KB PDF covers the 2SD965 and bears an _E suffix that the name leaves unexplained.

Datasheet-type PDF of 47.9 KB for the 2SD894, placed under schematics. The name holds only the part number, which follows JIS conventions where 2SD indicates an NPN…

Small 27.9 KB PDF for the 2SC4630LS, sorted into schematics though it reads as a transistor datasheet.

Data sheet for the 2SC4502, a small 45.1 KB PDF whose name ends in an E suffix, likely marking an edition or English version, though that is not certain.

Component sheet, 76.2 KB in PDF, for the 2SC4491 transistor. JIS numbering assigns the 2SC prefix to NPN bipolar devices, and despite the schematic category this is a…

Component documentation for 2SC4460 in a 108 KB PDF file. The number follows Japanese JIS registration, where the 2SC prefix denotes an NPN transistor for high-frequency…

Short 40.3 KB PDF describing the 2SC5578 transistor. No manufacturer, package or version appears in the file name.

Indexed as a schematic, this 321 KB PDF carries only the part number 2SC5748. Under JIS/JEITA naming, a 2SC code belongs to an NPN bipolar transistor, so the document is…

Datasheet-style PDF, 469 KB, for the 2SC5091 NPN transistor, listed in the schematic section of the index.

Part number 2SC5714 names this 166 KB PDF. Under the Japanese JIS scheme, 2SC parts are NPN bipolar transistors, so the document should list electrical ratings and a…

Transistor datasheet for the 2SC3774, presented as a 126 KB PDF and listed in the schematic category. Under Japanese JIS naming, 2SC denotes an NPN bipolar transistor.

PDF datasheet for the 2SC5368, an NPN bipolar transistor under the JIS 2SC scheme, filed under schematics and around 188 KB.

The 2SC3666 is documented here in a 175 KB PDF. Following JIS semiconductor naming, 2SC designates an NPN bipolar transistor, and since the name holds only the part…

The bare part number 2SC3419 names this 176 KB PDF, which the index lists as a schematic.

Datasheet-type PDF of 215 KB for the 2SC2655, listed as a schematic. The JIS system uses 2SC for NPN bipolar transistors.

Covering the 2SC2500, this PDF of about 180 KB is indexed as a schematic but by its name is a semiconductor datasheet.

A 347 KB PDF catalogued as a schematic but named after the semiconductor part number 2SC2240.

The 2SB1375 transistor is covered by this 182 KB PDF, indexed among schematics but functioning as a part datasheet. The name holds just the part number.

Reference PDF, 88.9 KB, documenting the 2SA1654 transistor; only the part number is present in the name.

PDF documentation, 195 KB, for the 2SB907. Japanese JIS numbering assigns the 2SB prefix to PNP transistors meant for low-frequency applications.

Compact 40.8 KB PDF for the 2SA1257, indexed as a schematic though its name carries only a part number.

A 91.7 KB PDF for the 2SA1831, placed in the schematic section of the catalogue. According to Japanese JIS numbering, 2SA designates a PNP bipolar transistor.

The 2SA1091 is covered by this 334 KB PDF, the largest of this group, filed in the schematic category.

Reference sheet for the 2N681 semiconductor, stored as a 209 KB PDF and listed in the schematic category, though a 2N designation points to a single-component datasheet.

Compact 51.7 KB PDF documenting the 2N4036, filed under schematics though its JEDEC-style name indicates a discrete component datasheet.

Datasheet-type PDF, 173 KB, for the 200CNQ series of Schottky rectifier modules, with no voltage suffix in the name, suggesting several grades on one sheet.

Complete-looking datasheet PDF of 675 KB named 25C02, catalogued as a schematic. By standard naming it covers a 2 Kbit SPI serial EEPROM, without any manufacturer…

Indexed under schematics, the 49.5 KB PDF 16SYQ060C states no device, board number or revision, only a part code resembling International Rectifier Schottky rectifier…

RAR archive of 8.39 MB with an uninformative name giving no device, board number or brand.

BIOS binary for the Lenovo Yoga 11e 5th generation, marked ok, implying the dump was confirmed working by whoever saved it.

Raw BIN dump for the Lenovo ThinkPad X260 motherboard NM-A531, compressed as a 5.25 MB ZIP.

Firmware image for the HP EliteBook 8560p, an 8.00 MB raw dump with no extension, sized for a 64 Mbit SPI flash chip.

BIOS firmware labelled HP 4200S, most likely the ProBook 4200s series, as a 2.00 MB binary that suits a 16 Mbit SPI flash chip.

BIOS dump for the HP Pavilion dv6, a 2.00 MB binary. HP sold the dv6 across several generations with Intel and AMD boards from different manufacturers, and the name…

Firmware file named geogi, an uninformative label that identifies no device; it is 4.00 MB and has no extension.

Duplicate 8.00 MB read of a GD25Q64 SPI flash chip saved on 10 May 2018 under the label kampinswd, which does not name a device, model or motherboard.

Firmware image labelled G6P, 4 MB, which matches a 32-megabit SPI flash chip. The name gives no brand, board number or BIOS version.