2N4428 Overview
2N4428 (SILICON) NPN SILICON RF POWER TRANSISTOR · .. designed primarily for use in large signal VHF and UHF amplifier output stages in military and industrial munications applications. High Power Output Pout = 0.75 Watt with 10 dB Gain @f=500 MHz High Current·Gain-Bandwidth Product fT = 1000 MHz (Typ) @IC = 50 mAdc Multiple Emitter Construction for Excellent High Frequency Performance MAXIMUM RATINGS Rating...