The NTE243 (NPN) and NTE244 (PNP) are silicon complementary Darlington transistors in a TO-3 type case designed for general–purpose amplifier and low–frequency switching applications.
Features:
High DC Current Gain: hFE = 3000 Typ @ IC = 4 A
Collector–Emitter Sustaining Voltage: VCEO(sus) = 80 V Min @ 100 mA
Low Collector–Emitter Saturation Voltage: VCE(sat) = 2 V Max @ IC = 4 A = 3 V Max @ IC = 8 A
Monolithic Construction with Built–In Base–Emitter Shunt Resistors