Data Sheet No. 2C2857
Chip Type 2C2857
Geometry 0011
Polarity NPN
Generic Packaged Part:
2N2857
Chip type
2C2857
by Semicoa Semi-
conductors provides performance
similar to these devices.
Part Numbers:
SD2857, SD2857F,
SQ2857, SQ2857F
Product Summary:
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
Mechanical Specifications
Metallization
Bonding Pad Size
Die Thickness
Chip Area
Top Surface
Top
Backside
Emitter
Base
Al - 15 kÅ min.
Au - 6.5 kÅ 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
T
A
= 25 C
Parameter
BV
CEO
BV
CBO
BV
EBO
I
CBO
o
Test conditions
I
C
= 3.0 mA
I
C
= 1.0 µA
I
E
= 10 µA
V
CB
= 15 V
Min
15
30
2.5
---
Max
---
---
---
0.01
Unit
V dc
V dc
V dc
µA dc
h
FE
I
C
= 3.0 mA dc, V
CE
= 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 µs, duty cycle less than 2%.
SEMICOA [ SEMICOA SEMICONDUCTOR ]
