BF494 - Silicon NPN transistor
BF494 Features
* ，。 Low current, low voltage. / Applications ，，。 HF applications in radio and television receivers, FM tuners, low noise AM mixer-oscillators. / Equivalent Circuit / Pinning 1 23 PIN1：Collector PIN 2：Emitter PIN 3：Base / hFE Classifications & Marking 。See Marking Instructions. http://www
