Bipolar (BJT) Single Transistor, NPN, 50 V, 800 mA, 500 mW, TO-206AA, Through Hole The JANTX2N2222A is a 50V Silicon NPN Small Signal Switching Transistor designed for the MIL-PRF-19500/255-qualified devices include switching and linear amplification in missile guidance, munitions, radio communications, commercial and military avionics and other military and aerospace systems where high reliability in harsh conditions and longevity of product supply are key design considerations.