NTE251 (NPN) & NTE252 (PNP) Silicon Complementary Transistors Darlington Power Amplifier Description: The NTE251 (NPN) and NTE252 (PNP) are silicon complementary Darlington transistors in a TO3 type case designed for general-purpose amplifier and low-frequency switching applications. Features: D High DC Current Gain @ IC = 10A: hFE = 2400 Typ (NTE251) hFE = 4000 Typ (NTE252) D Collector-Emitter Sustaining Voltage: VCEO(sus) = 100V Min D Monolithic Construction with Built-In Base-Emitter Shunt Resistors Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Collector-Emitter Voltage, VCEO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100V Collector-Base Voltage, VCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100V Emitter-Base Voltage, VEB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V Collector Current, IC Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20A Peak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40A Base Current, IB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mA Total Power Dissipation (TC = +25C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160W Derate Above 25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.915W/C Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +200C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +200C Thermal Resistance, Junction-to-Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.09C/W Electrical Characteristics: (TA = +25C unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit 100 - - V OFF Characteristics Collector-Emitter SustainingVoltage Collector Cutoff Current Emitter Cutoff Current VCEO(sus) IC = 100mA, IB = 0 ICEO VCE = 50V, IE = 0 - - 1.0 mA ICEX VCE = 100V, VBE(off) = 1.5V - - 0.5 mA VCE = 100V, VBE(off) = 1.5V, TA = +150C - - 5.0 mA IEBO VBE = 5V, IC = 0 - - 2.0 mA hFE VCE = 3V, IC = 10A 750 - 18000 VCE = 3V, IC = 20A 100 - - IC = 10A, IB = 40mA - - 2.0 V IC = 20A, IB = 200mA - - 3.0 V ON Characteristics (Note 1) DC Current Gain Collector-Emitter Saturation Voltage VCE(sat) Base-Emitter Saturation Voltage VBE(sat) IC = 20A, IB = 200mA - - 4.0 V Base-Emitter ON Voltage VBE(on) VCE = 3V, IC = 10A - - 2.8 V Dynamic Characteristics Small-Signal Current Gain hfe VCE = 3V, IC = 10A, f = 1kHz 300 - - Magnitude of Common Emitter Small-Signal Short-Circuit Forward Current Transfer Ratio |hfe| VCE = 3V, IC = 10A, f = 1MHz 4.0 - - Output Capacitance NTE251 NTE252 Cob VCB = 10V, IE = 0, f = 0.1MHz - - - - 400 600 MHz pF Note 1. Pulse Test: Pulse Width = 300s, Duty Cycle = 2% Schematic Diagram C B C B E NPN E PNP .135 (3.45) Max .350 (8.89) .875 (22.2) Dia Max Seating Plane .312 (7.93) Min Emitter .040 (1.02) 1.187 (30.16) .665 (16.9) .215 (5.45) .156 (3.96) Dia (2 Holes) .430 (10.92) .188 (4.8) R Max Base .525 (13.35) R Max Collector/Case