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Ordering number:EN5043
NPN Epitaxial Planar Silicon Transistor
2SC4868
VHF to UHF Wide-Band
Low-Noise Amplifier Applications
Features
· Low noise : NF=1.2dB typ (f=1GHz).
· High gain : S21e2=13dB typ (f=1GHz).
· High cutoff frequency : fT=9.0GHz typ.
Package Dimensions
unit:mm
2018B
[2SC4868]
0.4
3
0.16
0 to 0.1
1 0.95 0.95 2
1.9
2.9
Specifications
Absolute Maximum Ratings at Ta = 25˚C
Parameter
Symbol
Collector-to-Base Voltage
Collector-to-Emitter Voltage
Emitter-to-Base Voltage
Collector Current
Collector Dissipation
Junction Temperature
Storage Temperature
VCBO
VCEO
VEBO
IC
PC
Tj
Tstg
Electrical Characteristics at Ta = 25˚C
Conditions
Parameter
Symbol
Conditions
Collector Cutoff Current
Emitter Cutoff Current
DC Current Gain
Gain-Bandwidth Product
Output Capacitance
Forward Transfer Gain
Noise Figure
ICBO
IEBO
hFE
fT
Cob
| S21e |2
NF
VCB=10V, IE=0
VEB=1V, IC=0
VCE=5V, IC=15mA
VCE=5V, IC=15mA
VCB=10V, f=1MHz
VCE=5V, IC=15mA, f=1GHz
VCE=5V, IC=5mA, f=1GHz
* : The 2SC4868 is classified by 15mA hFE as follows : 60 3 120
Marking : GN
hFE rank : 3, 4, 5
90 4 180 135 5 270
1 : Base
2 : Emitter
3 : Collector
SANYO : CP
Ratings
16
8
1.5
50
200
150
–55 to +150
Unit
V
V
V
mA
mW
˚C
˚C
Ratings
min typ
60*
9.0
0.6
10 13
1.2
max
1.0
10
270*
1.1
2.5
Unit
µA
µA
GHz
pF
dB
dB
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquaters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
12099HA (KT)/31395YK (KOTO) TA-0245 No.5043–1/4

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2SC4868
No.5043–2/4

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S parameter
2SC4868
No.5043–3/4

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S parameter (Common emitter)
VCE=5V, IC=5mA, ZO=50
Freq (MHz)
200
| S11 |
0.726
S11
–49.0
400
0.522
–81.9
600
0.411
–104.5
800
0.342
–122.0
1000
0.304
–136.2
1200
0.278
–150.8
1400
0.263
–162.9
1600
0.254
–174.7
1800
0.252
172.2
2000
0.253
162.6
VCE=5V, IC=15mA, ZO=50
Freq (MHz)
| S11 |
200 0.454
400 0.295
600 0.243
800 0.219
1000
0.205
1200
0.200
1400
0.200
1600
0.202
1800
0.209
2000
0.215
S11
–74.7
–110.8
–132.5
–149.0
–161.4
–174.2
175.6
165.1
154.6
146.0
2SC4868
| S21 |
11.900
8.438
6.284
4.977
4.094
3.498
3.057
2.732
2.473
2.289
S21
139.5
115.9
101.5
91.5
83.7
76.8
70.7
65.3
60.2
55.4
| S12 |
0.045
0.070
0.086
0.102
0.118
0.134
0.151
0.170
0.187
0.206
| S21 |
18.146
10.672
7.405
5.706
4.636
3.913
3.407
3.032
2.734
2.517
S21
122.0
101.9
91.5
84.0
78.0
72.4
67.7
62.9
58.5
54.3
| S12 |
0.035
0.055
0.075
0.095
0.117
0.138
0.159
0.181
0.202
0.223
S12
66.5
58.2
56.5
57.1
57.8
58.8
58.9
58.8
58.5
58.1
S12
65.4
66.1
67.8
68.5
68.4
67.6
66.3
64.8
63.4
61.6
| S22 |
0.832
0.648
0.538
0.473
0.448
0.427
0.413
0.400
0.391
0.387
| S22 |
0.635
0.459
0.391
0.363
0.347
0.340
0.334
0.327
0.322
0.319
S22
–25.0
–35.5
–39.5
–41.7
–44.0
–46.0
–48.4
–51.7
–55.0
–58.5
S22
–33.9
–37.3
–37.1
–38.0
–39.9
–42.4
–45.3
–49.3
–53.1
–57.3
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer's
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer's products or equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
In the event that any or all SANYO products(including technical data,services) described or
contained herein are controlled under any of applicable local export control laws and regulations,
such products must not be exported without obtaining the export license from the authorities
concerned in accordance with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co., Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification"
for the SANYO product that you intend to use.
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, 1999. Specifications and information herein are subject
to change without notice.
PS No.5043–4/4