The 2SK2171 referenced in this 180 KB PDF is an N-channel field-effect transistor by JIS/EIAJ convention, which uses the 2SK prefix for that class.

Short 32 KB PDF labelled 2SK1445LS, listed among schematics. The LS suffix suggests a variant of the 2SK1445, but the name does not define what it changes.

Catalogued as a schematic, this 31.8 KB PDF is named 2SK1443LS, pointing to a suffixed variant of the 2SK1443. The name does not clarify the LS suffix.

The 2SK1434 N-channel field-effect transistor, named according to the Japanese JIS scheme where 2SK signals that device class, is documented in this 104 KB PDF.

For the 2SK1427 N-channel FET, this 101 KB PDF sits in the schematic section of the index but most likely contains a datasheet.

The 2SK1237 N-channel transistor is the subject of this 45.8 KB PDF, filed under the schematic category.

Component reference for the 2SK1214 N-channel MOSFET, a 34.3 KB PDF in the Japanese 2SK family.

Small PDF document, 28.8 KB, identified only by the part number 2SJ615 and filed as a schematic.

PDF reference of 42.4 KB for the 2SJ578 part, listed in the schematic section. Japanese JIS coding gives the 2SJ prefix to P-channel field-effect transistors, so the…

A 379 KB PDF covering the 2SJ304. The file name holds only the part number, with no reference to a product.

Filed under schematics, this 191 KB PDF refers to the 2SD1223 transistor. In Japanese JIS numbering, the 2SD prefix identifies an NPN bipolar device for low-frequency…

Brief 41.5 KB PDF on the 2SD1211 with an _E suffix, entered in the schematic category. Under JIS conventions the 2SD prefix stands for an NPN bipolar transistor for…

PDF documentation, 42.4 KB, for the 2SD1010 part, with an unexplained _E suffix in its name.

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…

Part reference for the 2SC4577, provided as a 106 KB PDF under the schematic type. With the JIS 2SC prefix denoting a high-frequency NPN bipolar transistor, the content…

Transistor 2SC4458 is the subject of this 103 KB PDF, which the catalogue lists as a schematic.

Larger than most in this series at 211 KB, the PDF for 2SC4448 may include characteristic graphs alongside the ratings tables.

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…

This 246 KB PDF bears only the part number 2SC5110 and, despite its schematic label, should contain the datasheet for that device.

A 297 KB PDF describing the 2SC4251 transistor. The name contains just the part number, so the issuing manufacturer and revision must be read inside the document.

The 2SC5810 NPN transistor is covered by this 177 KB PDF, indexed as a schematic though its content is most likely the datasheet.

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.

A 200 KB PDF for the 2SC5458, a part in the Japanese 2SC numbering scheme for NPN bipolar transistors, filed here as a schematic.

The 2SC3951 PDF, 41.1 KB, is indexed as a schematic but is named purely after a JIS transistor part, so treat it as a datasheet for an NPN bipolar device.

Covering the 2SC5416LS, this 43.0 KB PDF is the LS variant of the 2SC5416, which is documented in a companion file.

A compact 32.5 KB PDF tied to the 2SC3918 transistor. The 2SC prefix is the JIS designation for an NPN bipolar device, so the content is most likely the manufacturer…

Another 469 KB PDF from the 2SC48xx range, this one labelled 2SC4842. The 2SC prefix in JIS semiconductor numbering denotes an NPN bipolar transistor, so despite the…

PDF reference, about 124 KB, for the 2SC3776 transistor. The JIS 2SC prefix identifies an NPN bipolar part, so although the file is labelled a schematic it most likely…

A 260 KB PDF dedicated to the 2SC5376, an NPN bipolar transistor in the Japanese 2SC series.

PDF reference for the 2SC3665, sized 175 KB, with no device or board information in the name.

Named 2SC5360, this 117 KB PDF concerns a Japanese JIS-registered NPN transistor, the 2SC prefix denoting a high-frequency type.

Filed under schematics, the 146 KB PDF is named 2SC2883, a Japanese JIS designation for an NPN bipolar transistor.

A 308 KB PDF named after the 2SC2753 semiconductor and placed in the schematic section.

Datasheet-style PDF, 38.3 KB, for the 2SC2631 transistor; the _E suffix may point to an English edition, though the name does not confirm it.

Part-number document for the 2SC2236, stored as a 178 KB PDF under the schematic category.

English-language edition, judging by the _E suffix, of a document for the 2SB1488 transistor, stored as a 46 KB PDF under schematics but almost certainly a datasheet.

The 2SB1302 transistor is documented in this 95.4 KB PDF, which the index files as a schematic.

Component document for the 2SA1451A in a 230 KB PDF, categorised as a schematic. Under Japanese JIS conventions 2SA designates a PNP transistor aimed at high-frequency…

PDF reference of 182 KB for the 2SA1431 semiconductor. Following JIS rules, 2SA part numbers are PNP transistors, formally classed for high-frequency use.

Transistor datasheet for the 2SA2070 in PDF format, roughly 189 KB. The 2SA prefix places it in the JIS category of PNP transistors for high-frequency use.