Firmware dump for the Samsung NP-R519-JA01RU laptop, another R519 regional configuration, stored in a 1019 KB ZIP archive.

BIOS and EC firmware for an Acer platform labelled PSCP7E, with C55-C-1E5 named, on Quanta board DA0BLXMB6G0 revision G with project code BLX.

BIOS image archive for the AN52S motherboard, a 376 KB zip. The name states the model and nothing more, so look inside for the firmware file and any version notes.

Datasheet for the 2SK4066, an N-channel power MOSFET, as indicated by the 2SK prefix of the Japanese semiconductor numbering system.

Main BIOS archive for the Lenovo IdeaPad S400, 3.74 MB in RAR form. The word main suggests the system BIOS rather than EC firmware, but the name gives no board number or…

BIOS dump for the Dell Latitude E6430 on the Compal LA-7741P motherboard, compressed into an 8.46 MB RAR.

An 8 MB raw BIOS binary labelled for the HP 4540, most likely a ProBook 4540s, with the name marking it as checked and working.

BIOS package for the Lenovo Z51-70 built on Compal motherboard LA-C282P, compressed as a 3.63 MB zip.

A 4 MB raw BIOS image for the ASUS K52F, marked in the name as tested and working. No board revision or BIOS version is given, so check the motherboard markings before…

Full Atmel datasheet for the AT89S8253, an 8051-compatible microcontroller with 12 KB of in-system programmable flash and 2 KB of onboard EEPROM.

Datasheet for the Atmel AT89S8252, an 8051-family microcontroller with 8 KB of downloadable flash, 2 KB of EEPROM and an SPI interface used for in-system programming.

Atmel datasheet for the AT89S53, an 8051-compatible microcontroller with 12 KB of in-system programmable flash and SPI serial programming.

HP EliteBook Folio 1040 G2 BIOS dump in a 5.75 MB RAR archive, with no board number or firmware version given in the name.

A 169 KB PDF for the 2SD1803, placed in the schematic category but evidently a component reference sheet. No manufacturer, revision or variant is named.

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

Small 42.2 KB PDF filed as a schematic for the 3N256 part. Under the JEDEC system the 3N prefix marks a registered device with four leads, and the same size across 3N253…

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.

Reference document for the 2SK2793, a 141 KB PDF catalogued under schematics. The 2SK designation in the Japanese JIS system denotes an N-channel field-effect…

PDF file of 314 KB for the 2SK2776, indexed under schematics. Since the 2SK prefix designates an N-channel field-effect transistor in the Japanese JIS system, the…

Datasheet-style PDF for the 2SK2608, sized 413 KB and catalogued under schematics. Under the Japanese JIS naming system, 2SK denotes an N-channel field-effect…

A 134 KB PDF for the 2SK2460N, catalogued as a schematic but almost certainly a datasheet for a discrete transistor, since 2SK numbers under the Japanese JIS system…

PDF document for the 2SK1530, filed under schematics although the name is only a semiconductor part number.

A 117 KB PDF catalogued as a schematic but named after the 2SK1458 part number, so it most likely holds the manufacturer's data sheet for that semiconductor.

The 2SK1442 is the sole detail in the name of this 107 KB PDF, which is categorised as a schematic.

Part reference sheet in PDF form for the 2SK663, carrying a 2SK prefix that under the Japanese JIS system denotes an N-channel FET.

At only 34.3 KB, this PDF for 2SC4453 is probably a short datasheet of a page or two, even though it is catalogued as a schematic.

A 206 KB PDF named only 2SC5148, filed with schematics but describing a single part. In the Japanese JIS system the 2SC prefix denotes an NPN bipolar transistor, so the…

Small 44.2 KB PDF for the 2SC5541, filed as a schematic though the part code points to an NPN bipolar transistor under the Japanese JIS system.

The 2SC3996 is covered by this 91.9 KB PDF, sorted under schematics although a name consisting only of a part code usually means a datasheet.

PDF reference sheet for the 2SC3921, 30.7 KB, catalogued among schematics but named with a JIS transistor code.

The 2SC4867 is documented in this 127 KB PDF, which sits in the schematic category. No board, model or revision appears in the name.

Filed under schematics, this 466 KB PDF is identified by the code 2SC4839 alone. In the Japanese JIS designation system the 2SC prefix belongs to NPN bipolar…

Short 27.5 KB PDF for the 2SC3751 NPN transistor, the smallest file in this group, so it is probably a brief specification or summary sheet.

Specifications for the 2SC3656 in PDF form, 90.4 KB. Parts beginning with 2SC in the JIS system are NPN bipolar transistors.

Named only after the JIS transistor number 2SC3461, this 110 KB PDF is listed as a schematic but is most probably a single-part datasheet.

A 171 KB PDF titled with the transistor code 2SC5359 and no other details. In the JIS numbering system, 2SC refers to an NPN bipolar transistor for high-frequency…

Part number 2SC2882 names this 137 KB PDF, which the index treats as a schematic. The 2SC prefix in the JIS system indicates an NPN bipolar transistor, making a…

Combined PDF of 267 KB covering two part numbers, 2SC2216 and 2SC2717, which suggests one datasheet shared by both devices.

Here is a 122 KB PDF for the 2SA1696, a semiconductor numbered under the Japanese JIS system and listed among schematics, though a part-coded file like this is normally…

PDF of 42.0 KB covering the 2SB1392 transistor. The name provides only the part number; manufacturer, package and revision are not given.