SEMICOA SD2857, SD2857F, SQ2857, SQ2857F Datasheet

Data Sheet No. 2C2857

Mechanical Specifications

Due to limitations of probe testing, only dc parameters are tested. This must be done with pulse width of less

Chip Type 2C2857
Geometry 0011
Polarity NPN

Chip type 2C2857 by Semicoa Semi­conductors provides performance
similar to these devices.

Part Numbers:

2N2857, 2N2857UB, SD2857, SD2857F,

SQ2857, SQ2857F

Generic Packaged Part:
2N2857

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

Metallization

Bonding Pad Size

Die Thickness

Chip Area

Top Surface

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

8 mils nominal
16 mils x 16 mils
Silox Passivated

Electrical Characteristics

TA = 25oC

Parameter Test conditions Min Max Unit

BV

CEO

BV

CBO

BV

EBO

I

CBO

h

FE

than 300 µs, duty cycle less than 2%.

IC = 3.0 mA dc, V

IC = 3.0 mA

IC = 1.0 µA

IE = 10 µA

VCB = 15 V

CE

= 1.0 V

15 --- V dc
30 --- V dc

2.5 --- V dc

--- 0.01 µA dc
30 150 ---