Chip Ty pe 2C2857
Geometry 0011
Polarity NPN
Data Sheet No. 2C2857
Generic Packaged Part:
2N2857
Chip type 2C2857 by Semicoa Semi-
conductors provides performance
similar to these devices.
Product Summary:
Part Numbers:
2N2857 , 2N2857UB , SD2857, SD2857F,
SQ2857, SQ2857F
APPLICATIONS: Designed for use
in high-gain, low noise amplifier, os-
cillator, mixer and UHF converters.
Features: ft = 1.2 GHz (typ) at 5 mA/6V
Top Al - 15 kÅ min.
Backside Au - 6.5 kÅ nom.
Emitter 2.3 mils x 2.3 mils
Base 2.3 mils x 2.3 mils
Die Thickness
Chip Area
Top Surface
16 mils x 16 mils
Silox Passivated
Mechanical Specifications
Metallization
Bonding Pad Size
8 mils nominal
Parameter Test conditions Min Max Unit
BV CEO I C = 3.0 mA 15 --- V dc
BV CBO I C = 1.0 µA 30 --- V dc
BV EBO I E = 10 µA 2.5 --- V dc
I CBO V CB = 15 V --- 0.01 µA dc
h FE I C = 3.0 mA dc, V CE = 1.0 V 30 150 ---
Electrical Characteristics
T A = 25 o C
Due to limitations of probe testing, only dc parameters are tested. This must be done with pulse width of less
than 300 µs, duty cycle less than 2%.