2SC4840

TOSHIBA Transistor Silicon NPN Epitaxial Planar Type 2SC4840 2SC4840 VHF~UHF Band Low Noise Amplifier Applications Unit: mm · Low noise figure, high gain. · NF = 1.1dB, |S21e|2 = 13dB (f = 1 GHz) Maximum Ratings (Ta = 25°C) Characteristics Collector-base voltage Collector-emitter voltage Emitter-base voltage Base current Collector current Collector power dissipation Junction temperature Storage temperature range Symbol VCBO VCEO VEBO IB IC PC Tj Tstg Rating 20 10 1.5 20 40 100 125 -55~125 Unit V V V mA mA mW °C °C Microwave Characteristics (Ta = 25°C) JEDEC ― JEITA ― TOSHIBA 2-2H1A Weight: 2.4 mg (typ.) Characteristics Transition frequency Insertion gain Noise figure Symbol Test Condition fT ïS21eï2 (1) ïS21eï2 (2) NF (1) NF (2) VCE = 8 V, IC = 20 mA VCE = 8 V, IC = 20 mA, f = 1 GHz VCE = 8 V, IC = 20 mA, f = 2 GHz VCE = 8 V, IC = 5 mA, f = 1 GHz VCE = 8 V, IC = 5 mA, f = 2 GHz Min Typ. Max Unit 7 10 ¾ GHz 10 13 ¾ dB ¾7¾ ¾ 1.1 2.5 dB ¾ 1.7 ¾ Electrical Characteristics (Ta = 25°C) Characteristics Symbol Test Condition Min Typ. Max Unit Collector cut-off current Emitter cut-off current DC current gain Output capacitance Reverse transfer capacitance ICBO IEBO hFE Cob Cre VCB = 10 V, IE = 0 VEB = 1 V, IC = 0 VCE = 8 V, IC = 20 mA VCB = 10 V, IE = 0, f = 1 MHz (Note) ¾ ¾ 50 ¾ ¾ ¾ ¾ ¾ 0.6 0.45 1 1 250 ¾ 0.9 mA mA pF pF Note: Cre is measured by 3 terminal method with capacitance bridge. 1 2003-03-19 Marking 2SC4840 2 2003-03-19 2SC4840 3 2003...