Datasheet in PDF form for a part marked C4581. The name gives only this code, which may be an abbreviated transistor marking, so check the document header to confirm the…

Unlabelled-type archive, 2.09 MB, named 3CESLRH131, which may denote revision 13.1 of the 3CESL RH series, although that reading is not certain.

Apple iPhone 6 repair archive, 15.1 MB RAR, with no board number or file type given in the name.

PDF document named TDA2824, a designation used for a dual low-voltage audio power amplifier IC.

Microchip PIC18F458 datasheet, a 3.95 MB PDF; the name also mentions 448, suggesting the PIC18F448 is covered in the same document.

Datasheet for the Microchip PIC16C925 and PIC16C926 microcontrollers, a 3.27 MB PDF. These OTP or EPROM devices integrate an LCD driver module, so they are found in…

Combined datasheet for the Microchip PIC16F7x series of flash microcontrollers, provided as a 3.95 MB PDF.

CD4093B datasheet in PDF format, about 575 KB, covering the CMOS quad two-input NAND gate with Schmitt-trigger inputs.

PDF reference sheet of 127 KB for the 2SD2219 transistor, catalogued among schematics although it documents one component. The name holds just the part number.

The 2SD1829 is covered by this 154 KB PDF, filed under schematics although the name points to a discrete transistor datasheet.

The 2SD1823 is documented in this 40.5 KB PDF, whose name ends in an unexplained E suffix.

The 2SD2129 transistor is documented in this 216 KB PDF datasheet, catalogued among schematics.

A 265 KB PDF documenting the 2SK2961 transistor. Under JIS naming, 2SK parts are N-channel field-effect transistors, so this is a component datasheet despite its…

Datasheet-type PDF of 425 KB for the 2SK2376, catalogued as a schematic. The 2SK prefix comes from the Japanese JIS scheme and identifies N-channel FETs; the name gives…

PDF reference for the 2SK1465, sized 121 KB. The 2SK prefix comes from Japanese semiconductor numbering and indicates an N-channel FET, so despite the schematic label…

A 101 KB PDF carrying only the part number 2SK223. Following JIS conventions, 2SK marks an N-channel FET, so the document is likely a datasheet although categorized as a…

Brief 29.5 KB PDF identified as 2sj163. In the Japanese JIS scheme the 2SJ prefix marks a P-channel field-effect transistor, so the content is probably a short datasheet…

This 104 KB PDF covers the 2SC5256FT. The FT suffix seems to denote a specific package version of the 2SC5256 NPN transistor, and a separate file for the base number…

Covering the 2SC5198, this 171 KB PDF sits in the schematic category but carries only a transistor part number, so treat it as a datasheet.

The 2SC3671 transistor is documented in this 178 KB PDF, which the catalogue lists as a schematic.

PDF documentation, 139 KB, for the 2SC3646 NPN bipolar transistor, as indicated by the JIS-style 2SC prefix.

The 2SC3637 is documented in this 117 KB PDF. Following the Japanese JIS scheme, the 2SC prefix denotes an NPN bipolar transistor, and no model, board or revision…

Component document for the 2SC2669, delivered as a 473 KB PDF and filed under schematics. The 2SC prefix is the JIS designation for NPN bipolar transistors.

Reference sheet for the 2SA1689 in PDF format, 74 KB, indexed as a schematic despite a file name that indicates a standard transistor datasheet.

Datasheet-type document in PDF for the 2SA1687, a Japanese JIS-registered transistor, listed under schematics at 143 KB.

Datasheet PDF for the 2SB1462, around 42 KB, indexed under schematics; the _E suffix most likely denotes an English-language version.

Reference PDF for the 2SA1478 transistor, 155 KB, catalogued in the schematic section. The JIS-style 2SA prefix indicates a PNP bipolar transistor.

Component document for 2SA1987, a 173 KB PDF. Following the Japanese JIS convention, the 2SA prefix designates a PNP bipolar transistor, so the file is expected to be a…

English-edition style datasheet, judging by the _E suffix common to Japanese maker documents, for the 2SA1748 PNP bipolar transistor; 39.5 KB PDF, filed as a schematic.

The 2SA1739 is named in this 44.6 KB PDF, listed among schematics although the JIS 2SA designation shows it is a PNP bipolar transistor datasheet.

Catalogued under schematics, a 147 KB PDF carrying just the part code 2N6756. No model, board number or revision appears in the name.

A 209 KB PDF for the 2N6055, carrying an unexplained RE suffix that may indicate a revised edition.

The 2N6035 is documented in this 244 KB PDF, indexed as a schematic though it is most likely a datasheet, and tagged with an unexplained RE suffix.

Reference document for the 2N4921 in a 238 KB PDF, with an RE suffix whose meaning is unstated and may mark a revised edition.

Filed as a schematic, this 184 KB PDF covers the 2N4410 and carries an RE suffix that may indicate a revised or re-issued document, though the name does not say.

A 304 KB PDF for the 2N4400 with an RE suffix, which may denote a revised or alternate edition of the document, though the name leaves it undefined.

Schematic PDF, 2.09 MB, named only T61. The name states no brand, board number or revision, so read the document cover to confirm what board it describes.

RAR archive of 6.48 MB named A300H with an SM suffix, which commonly stands for service manual.

Spanish PDF titled Microelectrónica, 4.14 MB, with no device, brand or board named. It is likely training or course material covering microelectronics topics such as…

A 122 KB PDF datasheet named SDZS003A, a literature number whose final letter usually indicates a document revision.