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.

The 2SK2129, a JIS-registered N-channel FET, is the only thing the name identifies in this 32 KB PDF.

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.

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

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…

Transistor datasheet PDF for the 2SK1462, 121 KB, catalogued under the schematic type. Japanese JIS numbering assigns 2SK to N-channel field-effect devices, and no board…

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.

Documentation for the 2SK1431, a part whose 2SK prefix places it among N-channel FETs under Japanese JIS numbering.

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

45.9 KB PDF documenting the 2SK1235 N-channel MOSFET, a JIS-registered Japanese part number.

PDF sheet for the 2SK1233 MOSFET, size 46.1 KB, part of the Japanese 2SK series of N-channel field-effect transistors.

Manufacturer documentation for the 2SK1066 transistor, a 303 KB PDF. Under JIS numbering, 2SK parts are N-channel field-effect transistors, so despite the schematic…

Reference document for the 2SK1062, provided as a 334 KB PDF. The 2SK designation identifies an N-channel field-effect transistor in the Japanese numbering scheme, and a…

Component documentation for the 2SK1033, a 34.4 KB PDF file. The 2SK series covers N-channel field-effect transistors in the Japanese designation system, and a…

Compact 33.8 KB PDF describing the 2SK758, an N-channel field-effect transistor in the JIS 2SK series.

The 2SK657 datasheet, filed as a schematic, is a 35.7 KB PDF; the 2SK prefix identifies an N-channel FET in the Japanese semiconductor numbering scheme.

Indexed as a schematic, this 33.9 KB PDF for the 2SK655 is best read as a transistor datasheet, since 2SK numbers designate N-channel FETs under the Japanese JIS…

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

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

PDF of 42.8 KB for part 2SJ585LS, listed under schematics. JIS semiconductor coding assigns 2SJ to P-channel FETs, so this is most probably a datasheet with ratings…

2SJ194 is the sole identifier in this 117 KB PDF; in JIS designations the 2SJ series covers P-channel field-effect transistors, so the document should be a part…

Component reference for the 2SD1235 in a 117 KB PDF, indexed as a schematic. JIS numbering assigns the 2SD prefix to NPN bipolar transistors intended for low-frequency…

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…

The 2SD1212 is the subject of this 120 KB PDF, filed as a schematic. Based on the Japanese JIS numbering, 2SD marks an NPN transistor meant for low-frequency circuits…

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 reference for the 2SD1160, about 220 KB, indexed as a schematic although the file name names only a transistor part.

Small 98.3 KB PDF for the 2SC5300 part. The 2SC prefix is the Japanese JIS registration for NPN bipolar transistors, so despite being listed as a schematic, the file is…

PDF reference of 143 KB named only for the 2SC4729. The 2SC prefix is the JIS code for an NPN bipolar transistor, so the catalogue label of schematic most likely stands…

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…

Covering the 2SC4632, this 89.2 KB PDF sits in the schematic category, yet its name matches a transistor part number.

Component sheet for the 2SC4615 NPN transistor, around 154 KB in PDF format and filed as a schematic.

Named 2SC4599, this 129 KB PDF is filed with schematics but reads as a part-number datasheet for a JIS-designated device, where 2SC means an NPN bipolar transistor for…

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…

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

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

A 91.7 KB PDF bearing the JIS part number 2SC4437, catalogued as a schematic. The 2SC prefix classifies it as an NPN bipolar transistor for high-frequency use, so the…

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…

Indexed as a schematic, this 105 KB PDF actually carries a semiconductor part number, 2SC4406.

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.