2 pcs  2т634а-2 Transistors NPN USSR NOS

Рк max - Constant power dissipation of the collector: 1.2 W;

• fgr - Limiting frequency of the current transfer coefficient of the transistor for a circuit with a common emitter: not less than 1500 MHz;

• Vkbo max - Maximum collector-base voltage at a given collector reverse current and emitter open circuit: 50 V;

• Uebo max - Maximum emitter-base voltage at a given emitter reverse current and collector open circuit: 3 V;

• Ik max - Maximum allowable DC collector current: 150 mA;

• Ik and max - The maximum allowable collector pulse current: 250 mA;

• Ikbo - Collector reverse current - current through the collector junction at a given collector-base reverse voltage and an open emitter terminal: no more than 1 μA (30V);

• Sk - Collector junction capacitance: no more than 2.5 pF;

• Рout - Transistor output power: not less than 0.45 W at 5 G