Schematic of a 2.1 channel amplifier based on the TDA2030A, from Technical Mriganka, in a 416 KB PDF.

Block diagram for the Xiaomi Mi 4C smartphone in a compact 2 MB PDF. It gives a high-level map of the main subsystems, such as processor, memory, power management, radio…

Reference sheet in PDF format, 137 KB, for the 2SD1840 transistor from the 2SD family of NPN bipolar devices; despite the schematic label, expect datasheet content.

Compact 37.6 KB PDF for the 2SD1834 transistor, an NPN bipolar part in the 2SD series, most likely a short datasheet rather than a circuit schematic.

English-language datasheet, as the _E suffix suggests, for the 2SD2260 NPN bipolar transistor, supplied as a 45.3 KB PDF in the schematic section.

A 143 KB PDF catalogued as a schematic, covering the 2SD1801 semiconductor part. Under the Japanese JIS numbering system the 2SD prefix marks an NPN bipolar transistor…

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.

Small 72 KB PDF giving the specifications of the 2SD2120 transistor, an NPN type by its Japanese JIS prefix.

Reference sheet for the 2SD2116 NPN transistor, supplied as a 74 KB PDF. Its name follows the Japanese JIS 2SD convention and carries nothing beyond the part number.

Specification sheet in PDF, around 82 KB, for the 2SD1781K NPN transistor of the JIS 2SD series; the K suffix denotes a specific version of the base part.

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

PDF reference sheet for the 2SD1682 transistor, 150 KB, stored in the schematic category.

Reference document for the 2SD1662 transistor, 137 KB, PDF format, placed in the schematic category.

The 3SK304 is covered by this 25.9 KB PDF, listed as a schematic though it is expected to be a component datasheet.

An 80.6 KB PDF named after the 3SK265, filed under schematics but most likely a datasheet for that single device.

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.

PDF of 363 KB for the 2SK192A, listed among schematics but named after a single JIS part, with an A suffix that the name explicitly includes.

For the 2SK3114, a 94.1 KB PDF supplies the component data, filed among the schematics.

The 2SK2995 is the subject of this 418 KB PDF, filed among schematics but by its name a transistor datasheet.

Very small 26.9 KB PDF for the 2SK2951, likely a short datasheet or summary page given its size.

A 30.3 KB PDF on the 2SK2659, listed in the schematic section but in practice the documentation of a single N-channel FET, as indicated by the JIS 2SK prefix.

Lowercase-named PDF of 136 KB covering the 2SK2503, catalogued as a schematic though it relates to a single transistor.

Compact 36.9 KB PDF named for the 2SK2375, indexed under schematics but most likely a datasheet for an N-channel field-effect transistor, as indicated by the JIS 2SK…

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.

Part number 2SK2199 names this 104 KB PDF, which is grouped under schematics but is most likely a datasheet for an N-channel field-effect transistor.

This 96.1 KB PDF is named 2SK2161 and placed with schematics, but a part-number title like this usually signals a single-device datasheet.

Datasheet for the 2SK2013 N-channel field-effect transistor, delivered as a 221 KB PDF and indexed under schematics.

PDF of 101 KB for the 2SK1849 transistor, listed with schematics. In JIS numbering the 2SK prefix identifies an N-channel FET, so this should be the device datasheet…

Covering the 2SK1828, this 319 KB PDF is catalogued as a schematic but is most likely the component datasheet.

Covers the 2SK1725 transistor in an 85.8 KB PDF, indexed among schematics but in practice a single-component datasheet.

PDF document of 121 KB covering the 2SK1455 semiconductor, listed in the schematic category.

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

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…

Small 29.4 KB PDF bearing only the part number 2sj146. The 2SJ prefix in Japanese JIS naming designates a P-channel field-effect transistor, so treat this as a compact…

The 2SJ619 is the subject of this 314 KB PDF, indexed as a schematic though the naming suggests a component datasheet.

PDF of roughly 332 KB dedicated to the 2SJ610 part number and catalogued as a schematic.

At 383 KB, this PDF documents the 2SJ360, indexed as a schematic but by name a transistor datasheet.

PDF file of about 148 KB describing the 2SJ315, listed in the schematic section. No board or brand is mentioned, only the part number.

Roughly 96.6 KB PDF named for the 2SJ308. The name is limited to the part number and provides no model or board reference.