KT315

The KT315 is a Soviet silicon NPN bipolar junction transistor used for general-purpose low-power amplifying or switching applications, enclosed in the plastic KT-13 package. It was widely used in Soviet electronic equipment. The KT361 is a complementary (PNP) for the KT315 transistor, so it was often paired with it in push-pull stages.

КТ315 А...И
Structure n-p-n
Uce 15–60 V
Ube 6 V
Ic 50–100 mA
Ib 50 mA
P 100 mW
Pmax 150 mW
Tmax, °C up to 100 °C
fT 250 MHz
h21e 20–350
KT315b transistors

KT315 and KT361 transistors became the first in the USSR, which were produced using planar technology. The characteristics achieved in the KT315 were groundbreaking in Soviet technology at that time. The process of manufacturing was much cheaper than the alloy-junction technology, and the parameters surpassed those of earlier transistor types, in particular, the unity-gain frequency was 250 MHz.

The people associated with the development and mass-production launch of the KT315 were awarded the USSR State Prize for it in 1973.[1][2]

Application

KT315 transistors were designed for use in high-, medium- and sound-frequency amplifying stages.

See also
  • 2N3904 — NPN transistor with slightly better specifications than KT315. Usually can be used as a replacement.
  • 2N3906 — PNP transistor with slightly better specifications than KT361. Usually can be used as a replacement.
  • Bipolar junction transistor

References
  1. Национальная академия наук Беларуси :: Член-корреспондент ОНЕГИН Евгений Евгеньевич (1932-2002) (in Russian). Archived from the original on 8 August 2011. Retrieved 17 May 2015.
  2. Музей электронных раритетов - Актив - КТ315+КТ361 (in Russian). Retrieved 28 May 2015.


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