Thursday, September 23, 2010

Equivalents of Russian Transistors

1. Bipolar transistors

Russian part

Short description

Western analog

KT3102A general use n-p-n silicon transistor BCY43, BC107A, BC170, BC207A, 2N4123, MPS3709

KT3102E

npn silicon transistors with high h21e (>600)

2N5210, for example
KT312A-B general use n-p-n silicon transistor Almost the same as KT315, excluding case type.
KT608A HF middle-power silicon n-p-n transistor BSX21, 2SC796
KT606A-B middle-power silicon n-p-n transistor for use on HF and VHF applications Couldn't find, sorry
KT326 Common general-use p-n-p silicon device. I guess, any appropriate western transistor will be able to replace it. I wonder, why i can't find it in my databases...
KT602B rather old n-p-n silicon transistor, specially designed for working in final stages of wideband amplifiers. BSY71
GT308 Very old general-use p-n-p germanium transistor. Can't find, sorry.
GT311 Old, but still good germanium n-p-n device for working with frequencies up to 800 MHz. Can't find, sorry.
KT315 general use n-p-n silicon transistor, an old design BC146,
GT402 low-frequency germanium p-n-p transistor, old design Do not know*
GT404 complementary pair for GT402 Do not know*
MP25A-B Very old p-n-p transistor for 'draft' purposes ACY19, ACY23, 2N190-191
KT503A general use n-p-n silicon transistor (for rather low frequencies) 2SD762, for example
P214A Very old p-n-p high-power transistor for low frequencies AD142, for example
KT368A-B Very good high-frequency n-p-n transistor with low noise factor BFS17 , 2SC252
KT812A high-power transistor for low frequencies (n-p-n) KU601, KU602
KT815 Middle-power n-p-n silicon transistor for use in low-frequency circuits BD165
KT814 Complementary pair (p-n-p) for KT815 BD170
KT818G High-power p-n-p transistor, widely used in power supplies and output stages of AF amplifiers. AD142
KT819G The same as KT 818G, but with n-p-n structure BDY20, BDY23
KT940A high-voltage transistor for final stages of video-amplifiers in TV BF338

* - I suppose, any general use germanium transistor will work instead.

2. Field-effect transistors

Russian part

Short description

Western analog

KP303A n-channel JFET with rather low amplification haven't found*
KP307B n-channel JFET, general use 2N3819
KP302A the same as above haven't found*
KP303E the same as above MPF102
KP350A two-gate n-channel MOSFET transistor 2SK39
* Though I haven't found a direct equivalent for this device in my databases, it seems to me,that they are replaceable to 2N3819 and other general-use JFETs (may be, with a slight correction of DC conditions)

3. Analog and digital integrated circuits

Russian part

Short description

Western analog
K544UD1 General-use operational amplifier with high input impedance CA740
K155LA3 four TTL 2&-not elements SN7400
K155LA12 the same as LA3, but with more powerful outputs SN7437
K155IE2 Asynchronous TTL counter.. Has two counters inside - one counts up to 2, the second - up to 5. They may be used separately or connected in series forming a decade. SN7490
K155TM2 Two dynamical TTL triggers of 'D'-type. Also has external 'set' and 'reset' inputs. SN7474
K155TM7 Four TTL triggers of 'D'-type. Ideal for using as a 4-bit storage device SN7475
K155ID6 A simple 4 -> 10 decoder SN7442
K514ID2 4 -> 7 decoder with blanking input for a 7-segment indicator (LED, for example) MSD101
K500LP116 Three differential ECL receivers/amplifiers MC10116
K500TM131 Two ECL D-triggers MC10131

Valentin Gvozdev, Moscow

Source: http://matthieu.benoit.free.fr/cross/russian_equiv.htm

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