NTE2554 (NPN) & NTE2555 (PNP) Silicon Complementary Transistors Darlington Driver Applications: D Industrial Equipment D Printers D Typewriters D Sewing Machines D Recorders D Computers D Igniters D D D D D D D Car Coolers Projectors Players Stereos Home Appliances Audio Equipment ECRs Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Collector–Base Voltage, VCBO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70V Collector–Emitter Voltage, VCEO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60V Emitter–Base Voltage, VEBO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V Collector Current, IC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A Collector Power Dissipation (TC = +25°C), PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35W Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C Electrical Characteristics: (TA = +25°C unless otherwise specified) Parameter DC Current Gain Collector–Emitter Saturation Voltage Transition Frequency Symbol Test Conditions Min Typ Max Unit hFE VCE = 2V, IC = 3.5A 2000 – – VCE(sat) IC = 3.5A, IB = 7mA – – 1.5 V – 20 – MHz fT NTE2554 (NPN) NTE2555 (PNP) C C B B E E .402 (10.2) .035 (0.9) .177 (4.5) .051 (1.3) .346 (8.8) B C E .433 (11.0) .019 (0.5) .100 (2.54)