This datasheet PDF of 179 KB covers the 2SD2480 transistor and contains no further detail in its name.

Small 39.9 KB PDF for the 2SD2474, carrying an _E suffix whose meaning the name does not state; it may reflect a language or edition marker.

Named for the 2SD2462, this 184 KB PDF is effectively a datasheet for a Japanese-registered transistor.

The only detail in this 183 KB PDF name is the part number 2SD2461, indicating the datasheet for that transistor.

Indexed as a schematic, the 2SD1723 PDF of 146 KB is a component sheet for one discrete transistor.

This 145 KB PDF carries the 2SD1722 part number and nothing more, so it is best treated as that transistor's datasheet.

A 100 KB PDF for the 2SD1685, categorised as a schematic but named in the manner of a single-part datasheet.

Component document for the 2SD1684, filed under schematics but named after a Japanese JIS part number rather than a board.

The 2SD1683 is the subject of this 146 KB PDF, which is catalogued as a schematic although the name is a transistor part number.

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

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

Small 56.9 KB PDF for the 2SD1679, with an extra E suffix in the name that is not explained further.

Part reference for the 2SD1669, supplied as a 107 KB PDF and filed in the schematic section.

Covering the 2SD1668, this 104 KB PDF is listed as a schematic, though the name is a discrete transistor code.

Transistor documentation for the 2SD1667, 136 KB in PDF format. Nothing beyond the part number appears in the name.

A compact 30.6 KB PDF tied to the 2SD1666 part number, catalogued among schematics. In Japanese JIS designations, 2SD stands for an NPN bipolar transistor meant for…

PDF of 119 KB for the 2SD1664, written in lowercase in the original name and filed as a schematic.

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

At 198 KB, the PDF for the 2SD1658 is one of the larger sheets in this group, though it still names only the part.

Datasheet PDF, 60 KB, for the 2SD1650, with the name given in lowercase and filed under schematics.

Part documentation for the 2SD1631, a 162 KB PDF listed as a schematic. JIS designation 2SD indicates an NPN bipolar transistor designed for low-frequency or power…

The 2SD1628 is covered in this 88.3 KB PDF, catalogued with schematics though it relates to a single transistor.

PDF reference, 67.1 KB, for the 2SD1627 transistor, stored in the schematic section. The name carries nothing besides the part number.

Transistor sheet for the 2SD1626, 87.9 KB in PDF format, filed as a schematic. In JIS codes, 2SD denotes an NPN bipolar device for low-frequency or power circuits.

A 53.3 KB PDF for the 2SD2071, with an E suffix in the name whose meaning is not stated.

Covering the 2SD2067, this 60 KB PDF carries an E suffix that the name leaves unexplained.

Part datasheet in PDF form, 105 KB, for the 2SD2050 transistor, filed in the schematic category. The name holds only the part code.

The 2SD2049 is documented in this 131 KB PDF, catalogued as a schematic. In the JIS system, 2SD stands for an NPN bipolar transistor aimed at low-frequency or power…

Transistor reference for the 2SD2048, 78.9 KB, in PDF format and listed among schematics.

PDF document for the 2SD2028, 91.1 KB, filed in the schematic category. Only the part number is given.

Larger 185 KB PDF for the 2SD2012, written in lowercase in the name and placed among schematics.

Very small 22.2 KB PDF relating to the 2SD1999, filed as a schematic. The name offers nothing but the part code, which follows the JIS scheme where 2SD denotes an NPN…

Small PDF of 92.1 KB filed under schematics, though its name is simply the part number 2SD1998, so it is almost certainly a component datasheet rather than a board…

Labelled 2SD1997, this 86.1 KB PDF is indexed as a schematic, yet a bare transistor part number points to a manufacturer datasheet.

A 115 KB PDF named after the 2SD1625 part number, catalogued as a schematic but in practice most likely the transistor's datasheet.

Document for the 2SD1624, a PDF of 144 KB stored in the schematic section; with only a part number in the name it should be treated as a datasheet.

At just 33.5 KB, this PDF for the 2SD1623 is a short document listed as a schematic, though the part-number name suggests a compact datasheet.

The 2SD1622 PDF, 138 KB in size, sits among schematics, but a file named only by a semiconductor part number is very likely the device datasheet.

Indexed as a schematic, this 109 KB PDF is titled 2SD1621, a transistor part number, so treat it as a datasheet rather than a circuit diagram.

PDF of 77.6 KB named 2SD1620 and filed with schematics; the name carries nothing beyond the part number, which points to a component datasheet.