BIOS package for Compal board LA-N221P revision 1A, project JLG10, dated 2023-08-30, containing dumps for chips UG2 and UC901 and marked as fully working.

Lenovo Legion R7000P BIOS for the LCFC-designed NM-E481 mainboard at revision 1.0, with the project codes JY577, JY578 and JY670 listed.

Zip archive of about 11.3 MB containing firmware V8.29 for the A9500 receiver, built 26 October 2021.

Generic BIOS image of 16 MB named outimage, which states no brand, model or board number, so it cannot be matched to a board from the name alone.

Reference PDF of 598 KB for the CD4042BE, a CMOS quad clocked D latch in the 4000 series; the E suffix usually indicates the plastic DIP package.

Document for the BA7075, a ROHM integrated circuit, provided as a 158 KB PDF and filed as a schematic.

Datasheet for the 4N38 optocoupler, marked as revision 2 in the name and supplied as a 294 KB PDF filed among schematics.

Short 44 KB PDF covering the 4N32 and 4N33 optocouplers, two closely related members of the 4N family that use a Darlington phototransistor output for high current…

PDF reference, 67.1 KB, for the 2SD1627 transistor, stored in the schematic section. The name carries nothing besides the part number.

Transistor sheet for the 2SD1626, 87.9 KB in PDF format, filed as a schematic. In JIS codes, 2SD denotes an NPN bipolar device for low-frequency or power circuits.

A 53.3 KB PDF for the 2SD2071, with an E suffix in the name whose meaning is not stated.

Very small 22.2 KB PDF relating to the 2SD1999, filed as a schematic. The name offers nothing but the part code, which follows the JIS scheme where 2SD denotes an NPN…

The 2sd2394 NPN transistor is covered by this 53.3 KB PDF, which the index files as a schematic.

Only 29.3 KB, this PDF named 2SK2380 sits under schematics but is most likely a brief datasheet for an N-channel FET, per the Japanese JIS 2SK prefix.

The 2SK2171 referenced in this 180 KB PDF is an N-channel field-effect transistor by JIS/EIAJ convention, which uses the 2SK prefix for that class.

The 2SK1434 N-channel field-effect transistor, named according to the Japanese JIS scheme where 2SK signals that device class, is documented in this 104 KB PDF.

A brief 34.4 KB PDF describing the 2SK1267 N-channel MOSFET from the Japanese JIS 2SK numbering range.

PDF reference for the 2SD1160, about 220 KB, indexed as a schematic although the file name names only a transistor part.

PDF documentation, 42.4 KB, for the 2SD1010 part, with an unexplained _E suffix in its name.

Covering the 2SC4632, this 89.2 KB PDF sits in the schematic category, yet its name matches a transistor part number.

Larger than most in this series at 211 KB, the PDF for 2SC4448 may include characteristic graphs alongside the ratings tables.

Bearing only the number 2SC4293, this 92.7 KB PDF is catalogued under schematics while most likely holding the datasheet for that transistor.

A 297 KB PDF describing the 2SC4251 transistor. The name contains just the part number, so the issuing manufacturer and revision must be read inside the document.

Component datasheet in PDF form, 87.9 KB, for the 2SC3899. The JIS numbering system uses 2SC for NPN bipolar transistors, which fits a part specification better than a…

A 308 KB PDF named after the 2SC2753 semiconductor and placed in the schematic section.

PDF datasheet, 38.7 KB, for the 2sb1568 transistor, catalogued under schematics. Japanese JIS numbering identifies 2SB devices as PNP bipolar transistors intended for…

Named after the 2SA1527 transistor, this 30.7 KB PDF appears in the schematic category though its content should be the datasheet for the part.

Combined PDF, 53.0 KB, whose name lists two part numbers, 2SB1189 and 2SB1238, suggesting one data sheet covering both transistors. It is filed as a schematic.

PDF reference of 182 KB for the 2SA1431 semiconductor. Following JIS rules, 2SA part numbers are PNP transistors, formally classed for high-frequency use.

PDF datasheet of about 201 KB for the 2SA562TM transistor, where TM is a variant or package designation attached to the 2SA562 base number.

For the transistor 2SA2039 this 40.2 KB PDF most likely provides the manufacturer datasheet, even though it sits in the schematic category.

Datasheet for the 2SA1811 in PDF format, 173 KB in size, filed alongside schematics in the catalogue.

Brief 13.0 KB PDF datasheet for the 2SA1012 from UTC, that is Unisonic Technologies, which manufactures this transistor number among others.

PDF datasheet for the 2N3055 at 236 KB, catalogued as a schematic; the a1 ending in the name is not defined and could be a vendor document code or revision.

A 70 KB PDF on the 1SV311 diode, catalogued in the schematics section. The 1SV prefix comes from the Japanese JIS registration system and is used by Toshiba for…

PDF documentation of the 1SV307 diode, about 69 KB and listed as a schematic. The part number follows the JIS 1SV pattern, which Toshiba uses for variable-capacitance…

Covering the 1SV280 component, this 69.9 KB PDF appears in the schematics list but, given the 1SV prefix used for variable-capacitance diodes, most likely holds a…

Datasheet for the 1N4937GP diode, 45.7 KB PDF, indexed as a schematic. The GP suffix is typically used by manufacturers for glass-passivated construction.

Despite the schematic category, a 44.2 KB PDF named 182nq030 points to a single component, and the NQ code style corresponds to high-current Schottky rectifier modules…

Only the code 20CJQ045 identifies this 173 KB PDF, catalogued as a schematic. No device, board number or revision appears in the name.