BFS20 datasheet(1/1 Pages) KEXIN

Part #	BFS20

Description	NPN Medium Frequency Transistor

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Manufacturer	KEXIN [Guangdong Kexin Industrial Co.,Ltd]

Direct Link	http://www.kexin.com.cn/index.asp

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SMD Type

Transistors

1

0.4+0.1

-0.1

2.9+0.1

-0.1

0.95+0.1

-0.1

1.9+0.1

-0.1

1.Base

2.Emitter

3.collector

12

3

Unit: mm

SOT-23

0.1+0.05

-0.01

www.kexin.com.cn

NPN Medium Frequency Transistor

KFS20(BFS20)

Features

Low current (max. 25 mA)

Low voltage (max. 20 V)

Very low feedback capacitance (typ. 350 fF).

Marking

G1

Absolute Maximum Ratings Ta = 25

Parameter

Symbol

Rating

Unit

Collector-base voltage

VCBO

30

V

Collector-emitter voltage

VCEO

20

V

Emitter-base voltage

VEBO

4V

Collector current

IC

25

mA

Peak collector current

ICM

25

mA

power dissipation

PD

250

mW

Thermal resistance from junction to ambient *

Rth j-a

500

K/W

Junction temperature

Tj

150

Storage temperature

Tstg

-65to+150

* Transistor mounted on an FR4 printed-circuit board.

Electrical Characteristics Ta = 25

Parameter

Symbol

Testconditons

Min

Typ

Max

Unit

ICBO

IE =0;VCB = 20 V

100

nA

ICBO

IE =0;VCB =20V;Tj = 100

10

A

Emitter cutoff current

IEBO

IC =0;VEB = 4V

100

nA

DC current gain

hFE

IC =7mA;VCE = 10 V

40

85

Base to emitter voltage

VBE

IC =7mA;VCE = 10V

740

900

mV

Collector capacitance

CC

IE =ie =0;VCB =10V;f=1MHz

1

pF

Freedback capacitance

Cre

IC=0,VCB=10V,f=1MHz

350

pF

Transition frequency

fT

IC =5mA; VCE =10 V; f = 100 MHz

275

450

MHz

Collector cutoff current

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BFS20 Datasheet(PDF) 1 Page - Guangdong Kexin Industrial Co.,Ltd

BFS20 Datasheet(HTML) 1 Page - Guangdong Kexin Industrial Co.,Ltd

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