Part 2SK2399 is the subject of this 423 KB PDF, catalogued as a schematic but in all likelihood a datasheet, since under Japanese JIS numbering 2SK stands for an…

2SK1423 component data in a 105 KB PDF, entered in the index as a schematic. Japanese JIS naming uses the 2SK prefix for N-channel FETs, but the name gives no maker…

Part code 2SC4440 is all the 97.3 KB PDF name reveals, and the catalogue places it under schematics.

PDF reference for the 2SC4248 transistor, 300 KB in size. Beyond the part number the file name gives no information about manufacturer, package or revision.

A 349 KB PDF named for the 2SC2670 transistor and catalogued as a schematic, most likely containing the device datasheet. JIS 2SC numbering identifies NPN bipolar parts.

Indexed as a schematic, this 152 KB PDF for the 2SA1685 transistor is in all likelihood a manufacturer datasheet identified by its JIS code alone.

Indexed as a schematic, this compact 30.5 KB PDF is named for the 2SA1529, a JIS transistor number, and is best read as that part's datasheet.

Boardview for an FL1 mainboard, labelled MB-D, in .bdv format at 552 KB; the name does not reveal brand or exact device.

Sony schematic for the MEX-BT5000 car stereo with Bluetooth, provided as a 6.75 MB PDF with no version indicated.

Datasheet document, by all indications, for the 2SJ189, a JIS-registered P-channel FET, held as an 83.5 KB PDF in the schematic section.

The 2SD1212 is the subject of this 120 KB PDF, filed as a schematic. Based on the Japanese JIS numbering, 2SD marks an NPN transistor meant for low-frequency circuits…

Transistor 2SC4458 is the subject of this 103 KB PDF, which the catalogue lists as a schematic.

This 246 KB PDF bears only the part number 2SC5110 and, despite its schematic label, should contain the datasheet for that device.

Short 88.9 KB PDF carrying the transistor number 2SC4217, filed among schematics. JEITA assigns the 2SC prefix to NPN bipolar transistors, so this should be a datasheet…

Component sheet for the 2SC4209 in PDF format, 187 KB. The original name contains just the part number, so details like package, maker or revision are absent.

Datasheet-style PDF of 158 KB for the 2SC5765, indexed in the schematics section. Beyond the part number the name is uninformative; the 2SC prefix denotes an NPN…

Part number 2SC3955 is all the name reveals for this 40.7 KB PDF, filed among schematics yet most probably a transistor datasheet.

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

A 14.8 KB PDF datasheet for the SN7430N, a single 8-input positive NAND gate in a plastic DIP package.

Datasheet for the SN7427N, a triple 3-input positive NOR gate in plastic DIP, supplied as a 13.3 KB PDF.

Numbered copy of the ASUS K52JR BIOS marked OK, 4 MB in size to match a 32 Mbit SPI flash.

BIOS for the ThinkPad T61 with a modified whitelist, as the name indicates, supplied as a 2.02 MB ZIP.

Boardview for the ASUS ET2232I and ET2232IUK all-in-one PC mainboard, revision 1.2, part number 60PT0181-MB3C02.

Datasheet for the MQ-3 gas sensor, a tin dioxide semiconductor sensor sensitive to alcohol vapour, widely used in breathalyser kits and hobby modules.

Nokia 6230 schematic set in PDF format, 1.34 MB. Only the model is indicated; there is no board number or revision in the name, so check the main board's printed code…

Family datasheet spanning the 4N29 through 4N33 optocouplers, a 157 KB PDF listed in the schematic category.

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.

Reference PDF for the 2SK2466, 424 KB in size, belonging to the JIS N-channel FET family denoted by 2SK. The name contains only the part number.

Specification PDF for the 2SA1706 transistor, 140 KB, catalogued under schematics despite naming only a part.

PDF datasheet for the SED1278, 165 KB. The SED1278 is an Epson dot-matrix character LCD controller, broadly compatible with the HD44780 used in common alphanumeric text…

Generic boardview archive of 8.28 MB in zip format, whose name gives no device, brand or board number at all.

Fourth PDF in the TH32A410H schematic series, 6.62 MB with a -4 suffix. All four files in the set share this exact size, so they may be copies of one manual rather than…

PDF schematic labelled 1008HA, provided as an unlocked copy with document restrictions removed, which allows printing, copying and text search.

Shared documentation for models 1464, 1564 and 1764, packaged in a 1.12 MB RAR, likely the Dell Inspiron line that used a common mainboard design, although no brand is…

BIOS firmware for the Lenovo A720 all-in-one, built on the Quanta DA0QU7MB8C0 mainboard, revision E.

Covering the 2SK3335, this small PDF (32.6 KB) is a part datasheet placed in the schematic category.

Reference sheet in PDF format for the 2SK2549 field-effect transistor, 373 KB in size. In the JIS numbering used by Japanese semiconductor makers, 2SK denotes an…

Covering the 2SJ612, this 29.0 KB PDF sits in the schematic category, though a bare part number usually denotes a datasheet.

Part number 2SC5354 is all the name reveals about this 129 KB PDF, so it is not tied to any identified device.

Indexed under schematics, this 77.1 KB PDF is titled 1SV242 with a trailing underscore, and that is all the name reveals.