Complete schematic for the Samsung SM-J120, provided as an 8.41 MB PDF; the Spanish word esquematico completo means full schematic.

Circuit schematic for the classic Nokia 6210 handset, saved as a 779 KB PDF document. For older phones like this, diagrams are especially useful because replacement…

Nokia E7 schematic diagrams in a 5.87 MB PDF, covering the slider communicator with its hardware keyboard.

Circuit diagram for the ThinkPad T43, supplied as a 1.68 MB PDF. The file name carries no board number or revision, so the exact design version has to be confirmed…

Second PDF copy of the Quanta AT5 motherboard schematic, revision R1A, about 1.22 MB. AT5 follows the project-code pattern of Quanta, the ODM that manufactures laptops…

Schematic in PDF form shared by the Lenovo ThinkPad T14 and T14s Gen 3 and T16 and T16s Gen 1, LCFC design with project codes KT4D4, KT4DE and KT6DF, indexed under board…

PDF reference for the 2SD1852, a 2SD-series NPN bipolar transistor, about 96.5 KB and more likely a component datasheet than a circuit diagram.

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…

At 242 KB, the 2SD2092 PDF is one of the larger files in this series and carries no information beyond the part number.

Datasheet-style document, 133 KB in PDF format, covering the 2SD1681 part number and listed as a schematic.

Reference sheet in PDF form (32.2 KB) for the 2SK3414LS, listed in the schematic section of the index.

A 30.6 KB PDF for the 2SK3278, indexed as a schematic but holding component reference data.

A 429 KB PDF titled 2SK2789 and stored among schematics, most likely the datasheet for that part.

Component datasheet for the 2SK2661, a 385 KB PDF that is indexed as a schematic. Under JIS naming, the 2SK prefix marks an N-channel field-effect transistor, so look…

PDF of 312 KB for the 2SK2645. The trailing 01mr token is not decoded and may be the manufacturer's internal document code or edition.

Short PDF of about 34 KB tied to the 2SK2128 part number. It is catalogued as a schematic, but with nothing besides the part number in the name it is presumably a…

The 2SK2101 part number is followed by an extra 01mr suffix in this 175 KB PDF. The name does not explain that suffix, which could be a document code or revision.

A 166 KB PDF covering the 2SK1961 transistor. The 2SK series in the JIS system denotes N-channel FETs, so this schematic-categorised file should be read as a component…

Largest of this group at 382 KB, this PDF documents the 2SK1930, an N-channel field-effect transistor under Japanese JIS numbering.

PDF of 98.9 KB for the 2SK1898, listed under schematics but in practice a component reference for one transistor.

Only the part number 2SK1897 identifies this 97.1 KB PDF, which the index places among schematics.

Here the 2SK1730 is documented in a 97.1 KB PDF. The 2SK prefix belongs to the Japanese JIS/JEITA register and indicates an N-channel field-effect transistor, so the…

Reference PDF of 114 KB for the 2SK1691 N-channel field-effect transistor, the 2SK code being part of the Japanese semiconductor registry.

PDF of 104 KB for semiconductor 2SK1421, classed as a schematic in the index. JIS numbering places 2SK parts in the N-channel FET family; maker and package cannot be…

Part reference for the 2SK242, saved as a 170 KB PDF in the schematic section. Japanese JIS designations beginning with 2SK belong to N-channel FETs, so the file is most…

Listed as a schematic, this 31.1 KB PDF is named for the 2SJ594, a format typical of an individual component datasheet.

A 196 KB PDF named for the 2SC4684 and listed in the schematic category. Its 2SC prefix is the JIS marker for NPN bipolar transistors, so the document is best read as a…

The 2SC4632LS gets a brief 26.9 KB PDF here, indexed as a schematic but named after a discrete semiconductor.

The 2SC5226 is covered by a 112 KB PDF that the index classes as a schematic, though the name indicates a component datasheet.

Only the part number 2SC4563 identifies this 85.4 KB PDF, categorised as a schematic but best treated as a datasheet for a JIS-designated NPN bipolar transistor of the…

Larger than most in this series at 254 KB, this PDF documents the 2SC4497 NPN bipolar transistor, the 2SC prefix being the JIS designation.

The 2SC4423 is described by this 102 KB PDF, which the index lists as a schematic. Since 2SC is the JIS prefix for NPN bipolar transistors, the contents should be a…

PDF datasheet for the 2SC5587 transistor, 332 KB, filed under schematics. Only the part number is given; there is no manufacturer, package or version in the name.

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…

106 KB PDF tied to the 2SC4204 transistor, with no other information in the file name. The JEITA 2SC prefix denotes an NPN bipolar device, so despite the schematic label…

Datasheet-style PDF for the 2SC4105, 92.7 KB, catalogued as a schematic. Following the Japanese JIS designation system, 2SC marks an NPN bipolar transistor, and this…

Lowercase-named PDF of 51.5 KB for the 2SC5511, catalogued as a schematic but representing, under the JIS numbering system, an NPN bipolar transistor datasheet.

At 411 KB, this PDF for the 2SC5717 is one of the larger documents in the set and is probably a complete datasheet with graphs.

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…