2sc4228.pdf datasheet:

DATA SHEETSILICON TRANSISTOR2SC4228HIGH FREQUENCY LOW NOISE AMPLIFIERNPN SILICON EPITAXIAL TRANSISTORSUPER MINI MOLDDESCRIPTIONPACKAGE DIMENSIONS The 2SC4228 is a low supply voltage transistor designed for VHF,in millimeters UHF low noise amplifier.It is suitable for a high density surface mount assembly since the 2.1 0.1 transistor has been applied super mini mold package. 1.25 0.1 This is achieved by direct nitride passivated base surface process(NESATTM process) which is an NEC proprietary fabrication technique.2 FEATURES3 High fT : 8.0 GHz TYP. (@ VCE = 3 V, IC = 5 mA, f = 2 GHz)1 Low Cre : 0.3 pF TYP. (@ VCB = 3 V, IE = 0, f = 1 MHz) High |S21e|2 : 7.5 dB TYP. (@ VCE = 3 V, IC = 5 mA, f = 2 GHz) Super Mini Mold Package. (EIAJ: SC-70)Marking ORDERING INFORMATIONPARTQUANTITY PACKING STYLENUMBER2SC4228-T1 3