Datasheet PDF for the 2SA1681 transistor, 185 KB, listed in the schematic category. Only the part number is stated in the name.

PDF reference of 188 KB for the 2SA1680, a Japanese-registered transistor; the name offers no manufacturer, package or revision details.

Component datasheet for the 2SA1674, 44.2 KB PDF, whose name ends with an _E suffix that is not explained and may mark an edition or language version.

Information sheet for the 2SA1669 transistor in a 130 KB PDF. No additional specifics appear in the file name.

The 2SB1375 transistor is covered by this 182 KB PDF, indexed among schematics but functioning as a part datasheet. The name holds just the part number.

Datasheet in PDF format, 88.0 KB, for the 2SA1656; the file name states nothing else about the device.

Reference PDF, 88.9 KB, documenting the 2SA1654 transistor; only the part number is present in the name.

PDF datasheet of 96.4 KB for the 2SA1641 transistor, with no manufacturer or revision given in the name.

PDF document for the 2SA1635, filed under schematics but in fact a component sheet for a discrete transistor; the _1-2 suffix in the name likely marks a part or revision…

Short PDF of 38.2 KB covering the 2SA1635, a part number that follows the Japanese JIS scheme where 2SA identifies a high-frequency PNP bipolar transistor.

Reference sheet for the 2SA1624 transistor, saved as a 128 KB PDF and indexed in the schematic category.

The 2SA1621 is covered by this 194 KB PDF, listed among schematics but really describing one discrete semiconductor.

PDF component sheet, 184 KB, for the 2SA1620 transistor, filed as a schematic. Japanese JIS designations beginning with 2SA indicate a PNP bipolar device intended for…

Document for the 2SA1619 in PDF form, 51.3 KB, catalogued under schematics though it concerns a single transistor.

At 249 KB this PDF is the largest in the group and covers the 2SA1618, indexed as a schematic but in practice a transistor reference.

Transistor information for the 2SA1607, supplied as a 150 KB PDF and placed in the schematic category.

Compact 39.7 KB PDF on the 2SB1370, indexed as a schematic though it documents one discrete device.

The 2SB1344 transistor is the subject of this 38.9 KB PDF, which the index lists under schematics.

PDF for the 2SB1340 with a _1-2 suffix, 58.3 KB, filed among schematics yet describing a single transistor; the suffix may indicate a part or revision of the document…

Datasheet-style PDF of 38.9 KB for the 2SB1340, catalogued as a schematic. The Japanese JIS 2SB prefix marks PNP transistors designed for low-frequency circuits such as…

Component document for the 2SB1335, PDF format, 57.4 KB, indexed in the schematic section.

Reference PDF, 38.3 KB, for the 2SB1335 transistor, listed under schematics although it covers a single semiconductor rather than a circuit board.

PDF of 54.3 KB documenting the 2SB1322A, the A suffix marking a variant of the base 2SB1322 part. Catalogued as a schematic, it actually describes one transistor.

Covering the 2SB1321A, an A-suffixed variant of the 2SB1321, this 52.7 KB PDF is indexed as a schematic but is a transistor reference.

The 2SB1320A, a suffixed variant of the 2SB1320, is described in this 56.6 KB PDF filed under schematics.

PDF sheet, 41.6 KB, on the 2SB1319 transistor, indexed as a schematic. The E suffix in the name likely refers to an English edition but is not explained.

Small 37.7 KB PDF for the 2SB1308, catalogued among schematics though it documents a single discrete part.

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

Component reference for the 2SB1297, delivered as a 41.7 KB PDF and listed under schematics.

PDF for the 2SB1292, 58.0 KB, bearing a _1-2 suffix that may mark a document part or revision without further explanation.

Brief 39.0 KB PDF on the 2SB1292 transistor, indexed as a schematic although it is a single-part reference.

Document for the 2SB1290 in PDF form, 57.9 KB, with a _1-2 suffix that possibly indicates a section or revision; the name does not say.

PDF of 105 KB for the 2SA1606, indexed among schematics yet covering a single semiconductor.

A PDF document for the 2SA1604, an 84 KB file listed in the index as a schematic but named after a single discrete part rather than a board.

Reference sheet in PDF form for the 2SA1593 transistor, 156 KB in size. The name gives only the part number, with no device or board details.

The 2SA1592 is covered by this 156 KB PDF, filed as a schematic although the name refers to a single semiconductor.

PDF datasheet-style file for the 2SB1290 transistor, only 38.7 KB, so likely a brief sheet of a few pages. The name carries no other details such as package or maker.

Component documentation for the 2SA1591, an 89.4 KB PDF. Only the part number appears in the name; no revision or manufacturer is given.

An 89.5 KB PDF for the 2SA1590 transistor, listed under schematics but almost certainly a part datasheet given the name.

Datasheet PDF covering the 2SA1588, 215 KB in size, which suggests several pages with curves and package details.