NTE2557 Silicon NPN Transistor Darlington, High Voltage Switch, Power Amp Absolute Maximum Ratings: Collector–Base Voltage, VCBO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200V Collector–Emitter Voltage, VCEO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200V Emitter–Base Voltage, VEBO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V Collector Current, IC Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15A Peak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22A Base Current, IB Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1A Peak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2A Total Transistor Dissipation (TC = +25°C), PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100W Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.25°C/W Electrical Characteristics: (TC = +25°C unless otherwise specified) Parameter Collector Cutoff Current Symbol Test Conditions Min Typ Max Unit ICBO VCB = 200V – – 0.1 mA ICEO VCE = 200V – – 0.1 mA Emitter Cutoff Current IEBO VEB = 7V – – 5.0 mA DC Current Gain hFE VCE = 3V, IC = 10A 1500 – 30000 Transistion Frequency fT VCE = 10V, IC = 1.5A – 20 – MHz Collector–Emitter Saturation Voltage VCE(sat) IC = 10A, IB = 30mA – – 1.5 V Base–Emitter Saturation Voltage VBE(sat) IC = 10A, IB = 30mA – – 2.0 V IB1 = IB2 = 30mA, IC = 10A, RL = 3Ω, Ω VBB2 = 4V – – 2 µs – – 8 µs – – 5 µs Turn–On Time ton Storage Time tstg Fall Time tf NPN C B E .626 (15.9) Max .197 (5.0) .217 (5.5) .787 (20.0) .143 (3.65) Dia Max B C E .157 (4.0) .215 (5.45) See Note .559 (14.2) Min .047 (1.2) .094 (2.4) Note: Pin2 connected to metal part of mounting surface.