Fairchild Semiconductor BF245C, BF245B, BF245A Datasheet

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Fairchild Semiconductor BF245C, BF245B, BF245A Datasheet

BF245A/BF245B/BF245C

N-Channel Amplifiers

• This device is designed for VHF/UHF amplifiers.

• Sourced from process 50.

 

 

 

 

 

 

 

 

 

TO-92

 

 

 

 

 

 

 

 

 

 

 

 

G S D

 

 

 

 

 

Absolute Maximum Ratings TC=25° C unless otherwise noted

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Symbol

 

 

Parameter

 

 

Value

 

 

Units

 

VDG

 

Drain-Gate Voltage

 

 

 

 

30

 

 

 

 

V

 

VGS

 

Gate-Source Voltage

 

 

30

 

 

 

 

V

 

IGF

 

Forward Gate Current

 

 

10

 

 

 

 

mA

 

PD

 

Total Device Dissipation @TA=25° C

 

 

350

 

 

 

mW

 

 

 

 

Derate above 25° C

 

 

 

 

2.8

 

 

mW/° C

 

TJ, TSTG

 

Operating and Storage Junction Temperature Range

 

- 55 ~ 150

 

 

 

 

° C

 

Electrical Characteristics TC=25° C unless otherwise noted

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Symbol

 

 

Parameter

 

 

Test Condition

Min.

Typ.

 

Max.

 

Units

Off Characteristics

 

 

 

 

 

 

 

 

 

 

 

 

V(BR)GSs

 

Gate-Source Breakdown Voltage

 

VDS = 0, IG = 1µ A

30

 

 

 

 

 

V

 

VGS

 

Gate-Source

BF245A

 

VDS = 15V, ID = 200µ A

0.4

 

 

2.2

 

V

 

 

 

 

 

BF245B

 

 

 

1.6

 

 

3.8

 

 

 

 

 

 

 

BF245C

 

 

 

3.2

 

 

7.5

 

 

 

VGS(off)

 

Gate-Source Cut-off Voltage

 

VDS = 15V, ID = 10nA

-0.5

 

 

-8

 

V

 

IGSS

 

Gate Reverse Current

 

 

VGS = 20V, VGS = 0

 

 

 

5

 

nA

 

On Characteristics

 

 

 

 

 

 

 

 

 

 

 

 

IDSS

 

Zero-Gate Voltage Drain Current

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BF245A

 

VGS = 15V, VGS = 0

2

 

 

6.5

 

mA

 

 

 

 

 

BF245B

 

 

 

6

 

 

15

 

 

 

 

 

 

 

BF245C

 

 

 

12

 

 

25

 

 

 

On Characteristics

 

 

 

 

 

 

 

 

 

 

 

 

gfs

 

Common Source Forward

 

 

VGS = 15V, VGS = 0, f = 1KHz

3

 

 

6.5

 

m

 

 

Transconductance

 

 

 

 

 

 

 

 

 

 

 

 

BF245A/BF245B/BF245C

©2002 Fairchild Semiconductor Corporation

Rev. A, March 2002

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