2C4957 pnp equivalent, chip type 2c4957 geometry 0006 polarity pnp.
Special Characteristics ft = 1.6 GHz (typ) at 2.0 mA/10V Radiation graphs available
2N4957, 2N4957UB, 2N4958, 2N4958UB, 2N4959, 2N4959UB, SD4957, SD4957F, SQ4957, SQ495.
Designed for high-gain, low-noise class A amplifiers, oscillators and mixers. Features:
Special Characteristics ft = 1..
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