Datasheet 2SC4673 Datasheet (SANYO)

2SC4673

Ordering number : EN3927

UHF Low-Noise Amp, Wide-Band Amp

Applications

NPN Epitaxial Planar Silicon Transistor

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN

11697YK (KOTO) 8-6790 No.3927-1/4

Package Dimensions

unit: mm

2038-PCP

[2SC4673]

E : Emitter
C : Collector
B : Base
SANYO : PCP

Specifications
Absolute Maximum Ratings

at Ta=25°C

Parameter Symbol Conditions Ratings Unit

Collector-to-Base Voltage V

CBO

20 V

Collector-to-Emitter Voltage V

CEO

12 V

Emitter-to-Base Voltage V

EBO

3V

Collector Current I

C

100 mA

Base Current I

B

30 mA

Collector Dissipation P

C

400 mW
Mounted on ceramic board 800 mW
(250mm

2

×0.8mm)
Junction Temperature Tj 150 °C
Storage Temperature Tstg –55 to +150 °C

Electrical Characteristics at Ta=25°C

Parameter Symbol Conditions

Ratings

min typ max

Unit

Collector Cutoff Current I

CBO

VCB=12V, IE=0 1.0 µA

Emitter Cutoff Current I

EBO

VEB=2V, IC=0 10 µA

DC Current Gain h

FE

VCE=10V, IC=20mA 40* 200*

Gain-Bandwidth Product f

T

VCE=10V, IC=20mA 4.5 GHz
Output Capacitance Cob VCB=10V, f=1MHz 1.1 pF
Reverse Transfer Capacitance Cre VCB=10V, f=1MHz 0.75 pF
Forward Transfer Gain

S2le

2

VCE=10V, IC=20mA, f=0.9GHz 8.0 dB
Noise Figure NF VCE=10V, IC=5mA, f=0.9GHz 1.5 3.0 dB

* : The 2SC4673 is classified by 20mA hFEas follows :

Making : CD
hFErank : C, D, E

Features

• Low noise figure : NF=1.5dB typ (f=0.9GHz).

• High power gain : S2le2=8.0dB typ (f=0.9GHz).

• High cutoff frequency : fT=4.5GHz typ.

40 C 80 60 D 120 100 E 200

NT Test Circuit

2SC4673

No.3927-2/4

2SC4673

No.3927-3/4

S Parameters

2SC4673

No.3927-4/4

No products described or contained herein are intended for use in surgical implants, life-support systems,
aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and
the like, the failure of which may directly or indirectly cause injury, death or property lose.

Anyone purchasing any products described or contained herein for an above-mentioned use shall:

Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates,
subsidiaries and distributors and all their officers and employees, jointly and severally, against any
and all claims and litigation and all damages, cost and expenses associated with such use:
Not impose any responsibilty for any fault or negligence which may be cited in any such claim or
litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of
their officers and employees jointly or severally.

Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guarant­eed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees
are made or implied regarding its use or any infringements of intellectual property rights or other rights of
third parties.

This catalog provides information as of January, 1997. Specifications and information herein are subject
to change without notice.

S Parameters (Common emitter)

VCE=10V, IC=20mA, Zo=50Ω

Freq

(MHz)

100

S

11

MAG

0.414 –112.1 18.300 115.9 0.024 61.1 0.605 –26.4
200 0.372 –147.5 10.148 99.2 0.037 66.4 0.492 –23.5
400 0.364 –175.7 5.274 84.8 0.064 72.9 0.458 –23.0
600 0.369 170.1 3.619 75.6 0.093 75.3 0.460 –27.3
800 0.379 158.7 2.764 67.8 0.123 76.6 0.468 –32.6
900 0.366 153.6 2.504 66.4 0.139 75.4 0.475 –35.7
1000 0.388 148.5 2.279 60.8 0.152 75.1 0.478 –38.5
1200 0.399 140.5 1.914 54.2 0.184 74.0 0.487 –44.4

ANG

S

21

MAG ANG

S

12

MAG ANG

S

22

MAG ANG

Freq

(MHz)

100

S

11

MAG

0.730 –133.7 19.714 109.3 0.021 66.4 0.535 –25.3
200 0.363 –161.5 10.534 95.3 0.035 72.5 0.452 –20.6
400 0.366 177.6 5.411 82.8 0.064 77.3 0.438 –21.1
600 0.371 166.7 3.690 74.3 0.094 77.9 0.444 –25.9
800 0.380 156.9 2.823 66.8 0.125 77.3 0.454 –31.7
900 0.389 153.1 2.562 63.5 0.142 76.8 0.462 –35.1
1000 0.391 148.3 2.329 59.9 0.155 76.1 0.465 –37.7
1200 0.404 141.3 1.982 53.6 0.186 74.7 0.474 –43.8

ANG

S

21

MAG ANG

S

12

MAG ANG

S

22

MAG ANG

VCE=10V, IC=40mA, Zo=50Ω