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2N2857C1B-JQRS.GCDE Folha de dados(PDF) 2 Page - Seme LAB |
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2 / 4 page SILICON RF SMALL SIGNAL NPN TRANSISTOR 2N2857C1 Semelab Limited Semelab Limited Semelab Limited Semelab Limited Coventry Road, Lutterworth, Leicestershire, LE17 4JB Telephone +44 (0) 1455 556565 Fax +44 (0) 1455 552612 Email: sales@semelab-tt.com Website: http://www.semelab-tt.com Document Number 7726 Issue 1 Page 2 of 4 ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise stated) Symbols Parameters Test Conditions Min Typ Max Units V(BR)CEO (1) Collector-Emitter Breakdown Voltage IC = 3mA IB = 0 15 V VCB = 15V IE = 0 10 nA TA = 150°C 1.0 ICBO Collector-Cut-Off Current VCB = 30V IE = 0 1.0 µA ICES Collector-Cut-Off Current VCE = 16V IB = 0 100 nA IEBO Emitter-Cut-Off Current VEB = 3V IC = 0 10 µA IC = 3mA VCE = 1.0V 30 150 hFE (1) Forward-current transfer ratio TA = -55°C 10 VCE(sat) (1) Collector-Emitter Saturation Voltage IC = 10mA IB = 1.0mA 0.4 VBE(sat) (1) Base-Emitter Saturation Voltage IC = 10mA IB = 1.0mA 1.0 V DYNAMIC CHARACTERISTICS IC = 5mA VCE = 6V | hfe | Small signal forward-current transfer ratio f = 100MHz 10 21 IC = 2mA VCE = 6V hfe Small Signal Current Gain f = 1.0KHz 50 220 VCB = 10V IE = 0 Ccb Collector – Base Feedback Capacitance f = 1.0MHz 1.0 pF IE = 2mA VCB = 6V rb’CC (2) Collector Base Time Constant f = 31.9MHz 4 15 ps VCE = 6V IC = 1.5mA Gpe Small Signal Power Gain f = 450MHz 12.5 VCE = 6V IC = 1.5mA NF (2) Noise Figure f = 450MHz RG = 50 4.5 dB Notes Notes Notes Notes (1) Pulse Width ≤ 300us, δ ≤ 2% (2) By design only, not a production test. |
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