Panasonic 2SC4808 Datasheet

Transistor

2SC4808

Silicon NPN epitaxial planer type

For UHF band low-noise amplification

Features

■

●

Low noise figure NF.

●

High gain.

●

High transition frequency fT.

●

SSMini type package, allowing downsizing of the equipment and
automatic insertion through the tape packing.

Absolute Maximum Ratings (Ta=25˚C)

■

Parameter

Collector to base voltage
Collector to emitter voltage
Emitter to base voltage
Collector current
Collector power dissipation
Junction temperature
Storage temperature

Symbol

V

CBO

V

CEO

V

EBO

I

C

P

C

T

j

T

stg

Ratings

15
10

2

80
125
125

–55 ~ +125

Unit

V
V
V

mA

mW

˚C
˚C

1.6±0.15

0.8±0.1 0.40.4

1

0.5

1.6±0.1

1.0±0.1

0.5

2

0.3

0.75±0.15

0.45±0.1

1:Base
2:Emitter EIAJ:SC–75
3:Collector SS–Mini Type Package

0.2±0.1

0 to 0.1

Marking symbol : 3M

3

Unit: mm

–0.05

+0.1

0.2

–0.05

+0.1

0.15

Electrical Characteristics (Ta=25˚C)

■

Parameter

Collector cutoff current
Emitter cutoff current
Collector to base voltage
Collector to emitter voltage
Forward current transfer ratio
Transition frequency
Collector output capacitance
Foward transfer gain
Maximum unilateral power gain
Noise figure

Symbol

I

CBO

I

EBO

V

CBO

V

CEO

h

FE

f

T

C

ob

| S
GUM
NF

21e

Conditions

VCB = 10V, IE = 0
VEB = 2V, IC = 0
IC = 10µA, IE = 0
IC = 100µA, IB = 0
VCE = 8V, IC = 20mA

*

VCE = 8V, IC = 15mA, f = 800MHz
VCB = 10V, IE = 0, f = 1MHz

2

|

VCE = 8V, IC = 15mA, f = 800MHz
VCE = 8V, IC = 15mA, f = 800MHz
VCE = 8V, IC = 7mA, f = 800MHz

min

15
10
50

5

11

typ

150

max

300

6

0.7

1.2
14
15

*

Pulse measurement

Unit

1

µA

1

µA

V
V

GHz

pF
dB
dB

2

dB

1

Transistor

2SC4808

PC — Ta IC — V

150

)
mW

125

(

C

100

75

50

25

Collector power dissipation P

0

0 16040 12080 14020 10060

C

IC/IB=10

Ta=75˚C

25˚C

–25˚C

)

)

Ambient temperature Ta (˚C

V

— I

CE(sat)

)

100

V

(

30

CE(sat)

10

3

1

0.3

0.1

0.03

0.01

Collector to emitter saturation voltage V

0.1 1 10 1000.3 3 30

Collector current IC (mA

CE

24

20

)
mA

(

16

C

12

8

Collector current I

4

0

012108264

IB=200µA

Collector to emitter voltage VCE (V

hFE — I

C

600

FE

500

400

300

200

100

Forward current transfer ratio h

0

0.1 1 10 1000.3 3 30

Ta=75˚C

25˚C

–25˚C

Collector current IC (mA

Ta=25˚C

180µA
160µA
140µA

120µA
100µA

80µA
60µA
40µA

20µA

VCE=8V

)

120

100

)
mA

(

80

C

60

40

Collector current I

20

0

02.01.60.4 1.20.8

)

Base to emitter voltage VBE (V

12

)

10

GHz

(

T

8

6

4

2

Transition frequency f

0

0.1 1 10 1000.3 3 30

IC — V

BE

VCE=8V

25˚C

Ta=75˚C

–25˚C

fT — I

C

VCE=8V
f=800MHz
Ta=25˚C

Collector current IC (mA

)

)

)
pF

(

Cob — V

2.4

2.0

ob

1.6

1.2

0.8

0.4

CB

Collector output capacitance C

0

0.1 1 10 1000.3 3 30

Collector to base voltage VCB (V

2

IE=0
f=1MHz
Ta=25˚C

GUM — I

24

)
dB

(

20

16

12

8

4

Maximum unilateral power gain GUM

0

0.1 1 10 1000.3 3 30

)

Collector current IC (mA

C

VCE=8V
f=800MHz
Ta=25˚C

NF — I

C

)
dB

(

12

10

8

6

4

VCE=8V
(R

=50Ω)

g

f=800MHz
Ta=25˚C

Noise figure NF

2

0

0.1 1 10 1000.3 3 30

)

Collector current IC (mA

)