1
Transistors
Publication date: March 2003 SJC00123BED
2SC2778
Silicon NPN epitaxial planar type
For high-frequency amplification
■Features
•Optimum for RF amplification, oscillation, mixing, and IF of
FM/AM radios
•Mini type package, allowing downsizing of the equipment and
automatic insertion through the tape packing and the magazine
packing
■Absolute Maximum Ratings Ta = 25°C
Parameter Symbol Rating Unit
Collector-base voltage (Emitter open) VCBO 30 V
Collector-emitter voltage (Base open) VCEO 20 V
Emitter-base voltage (Collector open) VEBO 5V
Collector current IC30 mA
Collector power dissipation PC200 mW
Junction temperature Tj150 °C
Storage temperature Tstg −55 to +150 °C
Parameter Symbol Conditions Min Typ Max Unit
Collector-base voltage (Emitter open) VCBO IC = 10 µA, IE = 030V
Collector-emitter voltage (Base open) VCEO IC = 2 mA, IB = 020V
Emitter-base voltage (Collector open) VEBO IE = 10 µA, IC = 05V
Forward current transfer ratio *hFE VCE = 10 V, IC = 1 mA 70 250
Transition frequency fTVCB = 10 V, IE = −1 mA, f = 200 MHz 150 230 MHz
Reverse transfer capacitance Cre VCB = 10 V, IE = −1 mA, f = 10.7 MHz 1.3 pF
(Common emitter)
Unit: mm
■Electrical Characteristics Ta = 25°C ± 3°C
Rank B C
hFE 70 to 160 110 to 250
Note) 1. Measuring methods are based on JAPANESE INDUSTRIAL STANDARD JIS C 7030 measuring methods for transistors.
2. *: Rank classification
1: Base
2: Emitter
3: Collector
EIAJ: SC-59
Mini3-G1 Package
0.40+0.10
–0.05
(0.65) 1.50+0.25
–0.05
2.8+0.2
–0.3
2
1
3
(0.95) (0.95)
1.9±0.1
2.90+0.20
–0.05
0.16+0.10
–0.06
0.4±0.2
5˚
10˚
0 to 0.1 1.1+0.2
–0.1
1.1+0.3
–0.1
Marking Symbol: K
This product complies with the RoHS Directive (EU 2002/95/EC).
Maintenance/
Discontinued
Maintenance/Discontinued includes following four Product lifecycle stage.
planed maintenance type
maintenance type
planed discontinued typed
discontinued type
Please visit following URL about latest information.
http://www.semicon.panasonic.co.jp/en/
2SC2778
2SJC00123BED
IC VBE VCE(sat) IChFE IC
PC TaIC VCE IB VBE
fT IEZrb IECre VCE
0 16040 12080
0
240
200
160
120
80
40
Collector power dissipation PC (mW)
Ambient temperature Ta (°C)
018612
0
12
10
8
6
4
2
Ta = 25°C
IB = 100 µA
80 µA
60 µA
40 µA
20 µA
Collector current I
C
(mA)
Collector-emitter voltage V
CE
(V)
0 12040 80 160
0
12
10
8
6
4
2
VCE = 10 V
Ta = 25°C
Base current IB (µA)
Collector current IC (mA)
0 2.01.60.4 1.20.8
0
60
50
40
30
20
10
V
CE
= 10 V
T
a
= 75°C−25°C
25°C
Base-emitter voltage V
BE
(V)
Collector current I
C
(mA)
0.1 1 10 100
0.01
0.1
1
10
100 IC / IB = 10
Ta = 75°C
25°C
−25°C
Collector-emitter saturation voltage VCE(sat) (V)
Collector current IC (mA)
0.1 1 10 100
0
300
250
200
150
100
50
VCE = 10 V
Ta = 75°C
25°C
−25°C
Forward current transfer ratio hFE
Collector current IC (mA)
− 0.1 −1−10 −100
0
600
500
400
300
200
100
T
a
= 25°C
V
CB
= 10 V
6 V
Transition frequency f
T
(MHz)
Emitter current I
E
(mA)
− 0.1 −1−10
0
80
60
20
40
f = 2 MHz
Ta = 25°C
VCB = 6 V
10 V
Reverse transfer impedance Zrb (Ω)
Emitter current IE (mA)
0.1 1 10 100
0
2.4
2.0
1.6
1.2
0.8
0.4
IC = 1 mA
f = 10.7 MHz
Ta = 25°C
Collector-emitter voltage VCE (V)
Reverse transfer capacitance Cre (pF)
(Common emitter)
This product complies with the RoHS Directive (EU 2002/95/EC).
Maintenance/
Discontinued
Maintenance/Discontinued includes following four Product lifecycle stage.
planed maintenance type
maintenance type
planed discontinued typed
discontinued type
Please visit following URL about latest information.
http://www.semicon.panasonic.co.jp/en/
2SC2778
3
SJC00123BED
Cob VCB bie gie bre gre
bfe gfe boe goe
1 10 100
0
3.2
2.4
0.8
1.6
I
E
= 0
f = 1 MHz
T
a
= 25°C
Collector-base voltage VCB (V)
Collector output capacitance
(Common base, input open circuited) Cob (pF)
020164128
0
12
10
8
6
4
2
y
ie
= g
ie
+ jb
ie
V
CE
= 10 V
f = 0.45 MHz
−1 mA
−2 mA
−4 mA
−7 mA
58
25
10.7
100
I
E
= − 0.1 mA
Input conductance g
ie
(mS)
Input susceptance b
ie
(mS)
− 0.5 0− 0.1− 0.4 − 0.2− 0.3
−3.0
0
− 0.5
−1.0
−1.5
−2.0
−2.5
y
re
= g
re
+ jb
re
V
CE
= 10 V
f = 0.45 MHz
I
E
= −7 mA
−2 mA
−4 mA
−1 mA
− 0.4 mA
25
58
100
10.7
Reverse transfer conductance gre (mS)
Reverse transfer susceptance bre (mS)
0 1008020 6040
−120
0
−20
−40
−60
−80
−100
y
fe
= g
fe
+ jb
fe
V
CE
= 10 V
f = 0.45MHz
10.7
10.7
10.7
0.45
− 0.4 mA
− 0.1 mA
−1 mA
−2 mA −4 mA
I
E
= −7 mA
100
100
100
100 25
25
25
58
58
58
58
Forward transfer conductance gfe (mS)
Forward transfer susceptance b
fe
(mS)
0 1.00.80.2 0.60.4
0
1.2
1.0
0.8
0.6
0.4
0.2
y
oe
= g
oe
+ jb
oe
V
CE
= 10 V
f = 0.45 MHz
I
E
= − 0.1 mA
−7 mA
−4 mA
−2 mA
−1 mA
− 0.4 mA
58
10.7
25
100
Output conductance g
oe
(mS)
Output susceptance b
oe
(mS)
This product complies with the RoHS Directive (EU 2002/95/EC).
Maintenance/
Discontinued
Maintenance/Discontinued includes following four Product lifecycle stage.
planed maintenance type
maintenance type
planed discontinued typed
discontinued type
Please visit following URL about latest information.
http://www.semicon.panasonic.co.jp/en/
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semiconductors described in this book
(1)If any of the products or technical information described in this book is to be exported or provided to non-residents, the laws and
regulations of the exporting country, especially, those with regard to security export control, must be observed.
(2)The technical information described in this book is intended only to show the main characteristics and application circuit examples
of the products, and no license is granted under any intellectual property right or other right owned by our company or any other
company. Therefore, no responsibility is assumed by our company as to the infringement upon any such right owned by any other
company which may arise as a result of the use of technical information described in this book.
(3)The products described in this book are intended to be used for standard applications or general electronic equipment (such as office
equipment, communications equipment, measuring instruments and household appliances).
Consult our sales staff in advance for information on the following applications:
– Special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support
systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the prod-
ucts may directly jeopardize life or harm the human body.
– Any applications other than the standard applications intended.
(4)The products and product specifications described in this book are subject to change without notice for modification and/or im-
provement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product
Standards in advance to make sure that the latest specifications satisfy your requirements.
(5)When designing your equipment, comply with the range of absolute maximum rating and the guaranteed operating conditions
(operating power supply voltage and operating environment etc.). Especially, please be careful not to exceed the range of absolute
maximum rating on the transient state, such as power-on, power-off and mode-switching. Otherwise, we will not be liable for any
defect which may arise later in your equipment.
Even when the products are used within the guaranteed values, take into the consideration of incidence of break down and failure
mode, possible to occur to semiconductor products. Measures on the systems such as redundant design, arresting the spread of fire
or preventing glitch are recommended in order to prevent physical injury, fire, social damages, for example, by using the products.
(6)Comply with the instructions for use in order to prevent breakdown and characteristics change due to external factors (ESD, EOS,
thermal stress and mechanical stress) at the time of handling, mounting or at customer's process. When using products for which
damp-proof packing is required, satisfy the conditions, such as shelf life and the elapsed time since first opening the packages.
(7)This book may be not reprinted or reproduced whether wholly or partially, without the prior written permission of Matsushita
Electric Industrial Co., Ltd.
Maintenance/
Discontinued
Maintenance/Discontinued includes following four Product lifecycle stage.
planed maintenance type
maintenance type
planed discontinued typed
discontinued type
Please visit following URL about latest information.
http://www.semicon.panasonic.co.jp/en/
