SM4450 processor schematic in PDF form, 1.28 MB; the name gives no phone model, board number or revision.

Firmware archive named only V301, which may be a version number; no brand, model or board is given, so the purpose has to be worked out from the contents.

Datasheet for the HCF4017, the CMOS decade counter and divider with ten decoded outputs, provided as a 380 KB PDF.

CD4066 reference document, a 174 KB PDF for the CMOS quad bilateral analog switch. Listed as a schematic, though it is most likely the datasheet with pin diagram…

An 88.0 KB PDF for the 2SD1838, a Japanese-registered NPN bipolar transistor, best treated as a datasheet even though it is indexed as a schematic.

Covers the 2SD2195, a part whose JIS-style 2SD prefix identifies it as an NPN bipolar transistor rated for low-frequency work.

At 275 KB, this PDF for the 2SD2586 is larger than most in the series and may include more detailed characteristic curves or package drawings.

Sized at 299 KB, this PDF for the 2SD2559 is one of the more detailed files in the 2SD series and may include extended characteristic graphs.

Datasheet PDF for 5HN02N, roughly 41 KB. The name gives only the part designation, with N most likely marking a package option, and no board, model or brand.

PDF reference of 26.7 KB for the part 5HN01S. Catalogued with schematics, it concerns one discrete semiconductor, the S ending probably identifying a package variant.

Compact 46 KB PDF datasheet for the 2SD1757K, an NPN transistor under Japanese JIS designation, with a K suffix marking its variant.

The 2SD1409A file is a 212 KB PDF listed among schematics; a name made only of a part number strongly suggests a datasheet, and the A suffix denotes a variant of the…

Datasheet for the 2SD2387 in PDF form, 178 KB, catalogued under schematics. The JIS prefix 2SD denotes an NPN bipolar transistor of the low-frequency family.

A 368 KB PDF covering the 2SK2998, a part whose 2SK prefix follows the Japanese JIS scheme for N-channel FETs.

Short 27.9 KB PDF covering the 2SK2625LS transistor. Its base number follows the JIS 2SK convention for N-channel FETs, and the LS ending marks a variant such as an…

Named 2SK2398, this 410 KB PDF appears in the schematic category yet reads as a transistor datasheet by its number; JIS codes beginning 2SK cover N-channel field-effect…

A 134 KB PDF identified solely as 2SK2219, placed in the schematic category but most likely a transistor datasheet.

Very small at 23.3 KB, this PDF bears the lowercase part number 2sk2211 and is filed as a schematic, though it is most likely a brief datasheet or summary page.

PDF of 129 KB for the 2SK2103 N-channel FET, filed as a schematic but almost certainly a datasheet.

Named only 2SK1463, this 121 KB PDF is grouped with schematics but concerns a discrete part: the Japanese 2SK prefix means an N-channel FET.

PDF reference of 102 KB for the 2SK1428 field-effect transistor, filed among schematics.

A 104 KB PDF dedicated to the 2SK1424, an N-channel field-effect transistor going by its JIS 2SK prefix.

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…

Slightly larger at 109 KB, this PDF covers the 2SK1419 and is listed among schematics, though it most likely holds a datasheet.

A 420 KB PDF covering the 2SJ402, whose 2SJ prefix under Japanese JIS designation marks a P-channel field-effect transistor.

Reference PDF, 110 KB, for the 2SJ383 transistor, catalogued under schematics but by name a datasheet.

A 320 KB PDF for the 2SJ380, catalogued under schematics but by its number a transistor datasheet. In JIS designation, 2SJ parts are P-channel field-effect transistors.

PDF of 56.2 KB named 2SD1391, a JIS designation for an NPN low-frequency bipolar transistor, and presumably its datasheet although indexed under schematics.

Covering the 2SD1213 transistor, this PDF of 116 KB is indexed under the schematic type.

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…

For the 2SD893, this 53.8 KB PDF includes an _E suffix in its name whose meaning is not given.

The 2SC5230 is described in this 129 KB PDF, indexed as a schematic even though its name is a discrete part number.

The 2SC4504 transistor is covered by this 83.2 KB PDF data sheet. Its 2SC prefix follows Japanese JIS numbering for NPN bipolar devices; the name gives no manufacturer…

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.

PDF datasheet of 87.4 KB for the 2SC4493, an NPN bipolar transistor according to its JIS 2SC prefix.

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…

Part 2SC5095 gives this 296 KB PDF its name, and that is the only detail available: no board, revision or manufacturer is stated.

Filed under schematics, this 344 KB PDF carries the part number 2SC5445, which follows the Japanese JIS 2SC prefix for NPN bipolar transistors, so it is most likely a…

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…