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⚫ The '''2N2907''' is a commonly available ] ] used for general purpose low-power ] or switching applications. It is designed for low to medium ], low ], medium ], and can operate at moderately high speeds. This transistor was made by several manufacturers; ] released a data sheet for their version of this part dated March 1973.<ref>''The Transistor and Diode Data Book for Design Engineers'', Texas Instruments, Inc., no date, publication number CC-413 71242-73-CSS, page 4-151</ref> An "A" suffix indicates a slightly higher breakdown voltage.<ref>{{cite web
{{Context|date=April 2011}}
| url = http://www.datasheetcatalog.org/datasheet/SGSThomsonMicroelectronics/mXttwyu.pdf
{{Technical|date=April 2011}}
{{Notability|date=April 2011}}
⚫ The '''2N2907''' is a small ] ] ] used for general purpose low-power ] or switching applications. It is designed for low to medium ], low ], medium ], and can operate at moderately high speeds. This part number was made by several manufacturers; ] released a data sheet for their version of this part dated March 1973. <ref> ''The Transistor and Diode Data Book for Design Engineers'', Texas Instruments, Inc., no date, publication number CC-413 71242-73-CSS, page 4-151 </ref> An "A" suffix indicates a slightly higher breakdown voltage.
<ref>
{{cite web
| url = http://www.google.com/url?sa=t&source=web&cd=1&ved=0CBgQFjAA&url=http%3A%2F%2Fwww.datasheetcatalog.org%2Fdatasheet%2FSGSThomsonMicroelectronics%2FmXttwyu.pdf&rct=j&q=2N2905%202N2907&ei=bbiOTdGuMMzpgAeMmOCrDQ&usg=AFQjCNGBF1OFpg8nPEeVk34oRUQz6JoPcw&sig2=8g5Ngp27-el0LoG8ZxwGPw
| title = 2N2907 2N2905 GENERAL PURPOSE AMPLIFIERS AND SWITCHES | title = 2N2907 2N2905 GENERAL PURPOSE AMPLIFIERS AND SWITCHES
| work = SGS Thomson Microelectronics | work = SGS Thomson Microelectronics
⚫ }}</ref> These transistors have an enduring popularity with electronics hobbyists.<ref>{{cite book
}}</ref>
⚫ These transistors have an enduring popularity.<ref>
{{cite book
| title = Build your own low-power transmitters: projects for the electronics experimenter | title = Build your own low-power transmitters: projects for the electronics experimenter
| author = Rudolf F. Graf and William Sheets | author = Rudolf F. Graf and William Sheets
| publisher = Newnes | publisher = Newnes
| year = 2001 | year = 2001
| isbn = 9780750672443 | isbn = 978-0-7506-7244-3
| page = 14 | page = 14
| url = http://books.google.com/books?id=70rYm4s-9lcC&pg=PA14 | url = https://books.google.com/books?id=70rYm4s-9lcC&pg=PA14
| quote = The 2N2222, 2N2905, and 2N3055 devices, for example, which date back to the 1960s but have been improved, are still useful in new designs and are still popular for experimenters. | quote = The 2N2222, 2N2905, and 2N3055 devices, for example, which date back to the 1960s but have been improved, are still useful in new designs and are still popular for experimenters.
}}</ref> }}</ref>


==Specifications==
It is a 0.6-], 60 ], 400 milli-] transistor capable with an Ft of 200 ], with a beta of at least 100. It is used in a variety of analog amplification and switching applications. It is a 0.6-], 60-], 400-milli] transistor. Its ] (where the current gain drops to one) under specified test conditions is 200 ]. At low frequencies, the current gain (beta) is at least 100. The 2N2907 is used in a variety of analog amplification and switching applications.


==Part numbers==
The 2N2907 (PNP) and ] (NPN) are complementary transistor pairs.<ref>{{cite web |title=2N2907 & 2N2907A datasheet |url=http://electols.com/pdfs/2n2907a.pdf |website=Comset Semiconductors |access-date=July 7, 2022 |archive-url=https://web.archive.org/web/20190819160803/http://electols.com/pdfs/2n2907a.pdf |archive-date=August 19, 2019 |url-status=live}}</ref> Other types of transistors with different properties and connections have different part numbers. The prefix of each part number varies for each physical package type. Pin connections vary with different part numbers.


{| class="wikitable" border="1"
|+ Transistor part numbers
! rowspan="2" | ]
! colspan="2" | Thru-hole
! colspan="2" | ]
|-
! ] !! ] !! ] !! ]
|-
| PNP || 2N2907 || PN2907 || MMBT2907 || PZT2907A
|-
| NPN || ] || PN2222 || MMBT2222 || PZT2222A
|}


==See also==
* ]
* ]
* ]
* ]
* ]
* ]


==References== ==References==
{{Reflist}}


==Further reading==
{{reflist}}
;Historical Databooks
* , 1218 pages, 1987, Motorola.
* , 916 pages, 1965, Motorola.
* , 1236 pages, 1973, Texas Instruments.


== External links == ==External links==
{{commons category}}

* *
*


] ]
]

]
]

Latest revision as of 23:41, 22 April 2024

The 2N2907 is a commonly available PNP bipolar junction transistor used for general purpose low-power amplifying or switching applications. It is designed for low to medium current, low power, medium voltage, and can operate at moderately high speeds. This transistor was made by several manufacturers; Texas Instruments released a data sheet for their version of this part dated March 1973. An "A" suffix indicates a slightly higher breakdown voltage. These transistors have an enduring popularity with electronics hobbyists.

Specifications

It is a 0.6-ampere, 60-volt, 400-milliwatt transistor. Its transition frequency fT (where the current gain drops to one) under specified test conditions is 200 Megahertz. At low frequencies, the current gain (beta) is at least 100. The 2N2907 is used in a variety of analog amplification and switching applications.

Part numbers

The 2N2907 (PNP) and 2N2222 (NPN) are complementary transistor pairs. Other types of transistors with different properties and connections have different part numbers. The prefix of each part number varies for each physical package type. Pin connections vary with different part numbers.

Transistor part numbers
BJT Thru-hole Surface-mount
TO-18 TO-92 SOT23 SOT223
PNP 2N2907 PN2907 MMBT2907 PZT2907A
NPN 2N2222 PN2222 MMBT2222 PZT2222A


See also

References

  1. The Transistor and Diode Data Book for Design Engineers, Texas Instruments, Inc., no date, publication number CC-413 71242-73-CSS, page 4-151
  2. "2N2907 2N2905 GENERAL PURPOSE AMPLIFIERS AND SWITCHES" (PDF). SGS Thomson Microelectronics.
  3. Rudolf F. Graf and William Sheets (2001). Build your own low-power transmitters: projects for the electronics experimenter. Newnes. p. 14. ISBN 978-0-7506-7244-3. The 2N2222, 2N2905, and 2N3055 devices, for example, which date back to the 1960s but have been improved, are still useful in new designs and are still popular for experimenters.
  4. "2N2907 & 2N2907A datasheet" (PDF). Comset Semiconductors. Archived (PDF) from the original on August 19, 2019. Retrieved July 7, 2022.

Further reading

Historical Databooks

External links

Categories: