At 312 KB, this PDF for the 2SD2638 is the largest in its series and is probably a full datasheet with curves and outline drawings, though it is filed under schematics.

Component reference for the 2SD2635, a 35.2 KB PDF listed among schematics. The file name offers only the part number, with no manufacturer or revision given.

The 2SD2634 transistor is described in this 30.7 KB PDF, classified as a schematic though the name points to a datasheet.

A 40.8 KB PDF giving data on the 2SD2629, stored in the schematic category. Only the part number is present in the name.

Datasheet-type PDF, 30.8 KB, for the 2SD2627LS, catalogued as a schematic. The LS suffix is part of the type designation and likely refers to a specific variant or…

Reference PDF of 40.9 KB for the 2SD1819A, with an E tag in the name that probably denotes an English-language edition, filed under schematics.

Covering the 2SD1817, this 75.8 KB PDF is indexed as a schematic but by name is a component datasheet. No maker or revision is indicated.

A 152 KB PDF for the 2SD1816 transistor, listed in the schematic section. The name provides the part number only.

Datasheet for the 2SD1815 in PDF format, 154 KB, catalogued as a schematic. Apart from the type number, the name carries no extra details.

An 88.8 KB PDF describing the 2SD1806, filed in the schematic index although it is most likely a part datasheet.

Part data for the 2SD1805, supplied as a 96.5 KB PDF and categorised as a schematic. The name states nothing beyond the type number.

The 2SD1804 transistor is the subject of this 158 KB PDF, indexed under schematics though its name indicates a datasheet.

A 169 KB PDF for the 2SD1803, placed in the schematic category but evidently a component reference sheet. No manufacturer, revision or variant is named.

Documentation for the 2SD1802 in a 150 KB PDF, filed as a schematic though the name suggests a transistor datasheet.

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…

Reference sheet in PDF form, 141 KB, for the 2SD2198 transistor. The file is indexed as a schematic but is most likely a datasheet.

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

PDF document of 41.0 KB for the 2SD2185 transistor, with an _E suffix in the file name that is not decoded here.

Data for the 2SD2184, an NPN low-frequency bipolar transistor according to the Japanese 2SD numbering prefix, supplied as a 43.8 KB PDF.

The 2SD2179 transistor is the subject of this 43.9 KB PDF, carrying an _E suffix in its name.

Specification sheet in PDF format, 43.9 KB, for the 2SD2177A, the A-suffixed variant of the 2SD2177, with an additional _E tag in the name.

A 44.1 KB PDF for the base 2SD2177 transistor, the name also carrying an _E suffix. The 2SD prefix in the Japanese JIS scheme marks an NPN bipolar device for…

PDF of 75.0 KB covering the 2SD2176 part. Though listed as a schematic, a file named after a single JIS transistor number is most likely a datasheet, and the 2SD prefix…

Documentation for the 2SD2170 transistor, provided as a 54.0 KB PDF and indexed in the schematic category.

Here the subject is the 2SD2167, delivered as a 51.2 KB PDF filed as a schematic. By JIS convention the 2SD prefix belongs to NPN bipolar transistors for low-frequency…

The 2SD2598 transistor is covered in this 59.3 KB PDF, whose name ends in an _E suffix.

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.

Reference PDF, 218 KB, for the 2SD2584 component, indexed under schematics. In Japanese JIS numbering, 2SD indicates an NPN bipolar transistor designed for low-frequency…

Single-part PDF of 47.0 KB for the 2SD2583, listed as a schematic but most probably a datasheet.

Datasheet-style document for the 2SD2581 transistor, saved as a 43.7 KB PDF and filed in the schematic category.

A 43.9 KB PDF for the 2SD2580, indexed as a schematic. Japanese JIS numbering reserves the 2SD prefix for NPN bipolar transistors in low-frequency applications, so this…

Part documentation for the 2SD2579, provided as a PDF of 43.3 KB under the schematic heading.

Covering the 2SD2578 transistor, this 45.0 KB PDF sits in the schematic category but is probably a manufacturer datasheet.

PDF sheet of 38.4 KB for the 2SD2575, with an _E suffix in the file name. Filed as a schematic, it most likely holds datasheet content, because 2SD is the JIS code for…

The 2SD2571 transistor is documented in this 101 KB PDF, indexed as a schematic though most likely a datasheet.

Component reference for the 2SD2568, a 44.6 KB PDF in the schematic category. The 2SD prefix follows JIS numbering for NPN bipolar transistors used in low-frequency…

A 43.8 KB PDF for the 2SD2565 transistor, its name ending in _E. Although classified as a schematic, the file is most likely a datasheet, as the JIS prefix 2SD…

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-type PDF of 308 KB for the 2SD2553, filed under schematics. The Japanese JIS designation 2SD identifies an NPN bipolar transistor intended for low-frequency…

Part 2SD2551 is the subject of this PDF of about 232 KB, filed under schematics but most likely a component datasheet.