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| Data Sheet No. 2C2857 Chip Type 2C2857 Geometry 0011 Polarity NPN Generic Packaged Part: 2N2857 Chip type 2C2857 by Semicoa Semiconductors provides performance similar to these devices. Part Numbers: 2N2857, 2N2857UB, SD2857, SD2857F, SQ2857, SQ2857F Product Summary: APPLICATIONS: Designed for use in high-gain, low noise amplifier, oscillator, mixer and UHF converters. Features: ft = 1.2 GHz (typ) at 5 mA/6V Mechanical Specifications Metallization Bonding Pad Size Die Thickness Chip Area Top Surface Top Backside Emitter Base Al - 15 kA min. Au - 6.5 kA nom. 2.3 mils x 2.3 mils 2.3 mils x 2.3 mils 8 mils nominal 16 mils x 16 mils Silox Passivated Electrical Characteristics TA = 25oC Parameter BVCEO BVCBO BVEBO ICBO Test conditions IC = 3.0 mA IC = 1.0 A IE = 10 A VCB = 15 V Min 15 30 2.5 --- Max ------0.01 Unit V dc V dc V dc A dc hFE IC = 3.0 mA dc, VCE = 1.0 V 30 150 --Due to limitations of probe testing, only dc parameters are tested. This must be done with pulse width of less than 300 s, duty cycle less than 2%. |
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