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 High-current gain Power Transistor (60V, 3A)
2SD2318
Features 1) High DC current gain. 2) Low saturation voltage. (Typ. VCE(sat) =0.5V at IC / IB=2A / 0.5A) Absolute maximum ratings (Ta=25C)
Parameter Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Collector power dissipation Junction temperature Storage temperature
Single pulse PW=100ms
Dimensions (Unit : mm)
0.75
5.5
1.5
(3) (2) (1)
2.3
0.9
0.9
0.65 2.3
Symbol VCBO VCEO VEBO IC PC Tj Tstg
Limits 80 60 6 3 4.5 1 15 150 -55 to +150
Unit
1.0 0.5
0.5
V V A A(Pulse) W W(TC=25C) C C
1.5 2.5 9.5
ROHM : CPT3 EIAJ : SC-63
Packaging specifications and hFE
Type Package hFE Code Basic ordering unit (pieces) 2SD2318 CPT3 UV TL 2500
Electrical characteristics (Ta=25C)
Parameter Collector-base breakdown voltage Collector-emitter breakdown voltage Emitter-base breakdown voltage Collector cutoff current Emitter cutoff current Collector-emitter saturation voltage Base-emitter saturation voltage DC current transfer ratio Transition frequency Output capacitance Measured using pulse current. Symbol BVCBO BVCEO BVEBO ICBO IEBO VCE(sat) VBE(sat) hFE fT Cob Min. 80 60 6 - - - - 560 - - Typ. - - - - - - - - 50 60 Max. - - - 100 100 1.0 1.5 1800 - - Unit V V V A A V V - MHz pF Conditions IC=50A IC=1mA IE=50A VCB=80V VEB=6V IC/IB=2A/0.05A IC/IB=2A/0.05A VCE/IC=4V/0.5A VCE=5V, IE=-0.2A, f=10MHz VCB=10V, IE=0A, f=1MHz

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c 2010 ROHM Co., Ltd. All rights reserved.
2.3
V
5.1 6.5
C0.5
0.8Min.
(1) Base (2) Collector (3) Emitter
1/2
2010.01 - Rev.B
2SD2318
Electrical characteristic curves 3.0 50mA A mA
COLLECTOR CURRENT : IC (A)
Data Sheet
10 5
COLLECTOR CURRENT : IC (A)
45mA 2.5 40mA 2.0
15
m
10
VCE=4V
DC CURRENT GAIN : hFE
10000 5000 2000 1000 500 200 100 50 20
Ta=25C
2 0
IB=5mA 20mA
VCE=5V 4V
1.0 0.5 0 0
30mA 35mA
0.2 0.1 0.05 0.02
Ta=25C
1 2 3 4 5 6
0.01 0
Ta=10 0
-25C
1.5
25mA
C 25C
0.5
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
10 0.010.02 0.05 0.1 0.2
0.5
1
2
5
10
COLLECTOR TO EMITTER VOLTAGE : VBE (V)
BASE TO EMITTER VOLTAGE : VBE (V)
COLLECTOR CURRENT : IC (A)
Fig.1 Grounded emitter output characteristics
Fig.2 Grounded emitter propagation characteristics
Fig.3 DC current gain vs. collector current

10000 5000
DC CURRENT GAIN : hFE
COLLECTOR SATURATION VOLTAGE : VCE(sat) (V)
VCE=4V
Ta=25C
COLLECTOR SATURATION VOLTAGE : VCE(sat) (V) BASE SATURATION VOLTAGE : VBE(sat) (V)
10 5 2 0 0.5 0.2 0.1 0.05 0.02 0.01 0.010.02 0.05 0.1 0.2
10 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 0.010.02 0.05 0.1 0.2 25C Ta=-25C 25C
IC/IB=40
2000 1000 500 200 100 50 20
Ta=100C
VBE(sat)
25C
-25C
IC/IB=50 40
VCE(sat)
100C
-25C
10 0.010.02 0.05 0.1 0.2
0.5
1
2
5
10
0.5
1
2
5
10
0.5
1
2
5
10
COLLECTOR CURRENT : IC (A)
COLLECTOR CURRENT : IC (A)
COLLECTOR CURRENT : IC (A)
Fig.4 DC current gain vs. collector current
Fig.5 Collector-emitter saturation voltage vs. collector current
Fig.6 Collector-emitter saturation voltage Base-emitter saturation voltage -Collector current

COLLECTOR OUTPUT CAPACITANCE : Cob(pF)
1000
TRANSITION FREQUENCY : fT (MHz)
COLLECTOR CURRENT : IC (A)
500 200 100 50 20 10 5 2 1 -0.001
Ta=25C VCE=5V
1000 500 200 100 50 20 10 5 2 1 0.1 0.2
Ta=25C f=1MHz IE=0A
5 2 1 0.5
IC Max (Pulse)
Pw =1 ms Pw =1
10 0m s
0m s
DC
0.2 0.1 0.05 0.02
-0.01
-0.1
-1
0.5
1
2
5
10 20
50 100
0.01 0.1 0.2
Ta=25C Single nonrepetitive pulse
0.5 1 2 5 10 20 50 100
ENITTER CURRENT : IE (A)
COLLECTOR TO BASE VOLTAGE : VCB (V)
COLLECTOR TO EMITTER VOLTAGE : VCE (V)
Fig.7 Resistance ratio vs. collector current
Fig.8 Collector output capacitance vs. collector-base voltage
Fig.9 Safe operating area
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c 2010 ROHM Co., Ltd. All rights reserved.
2/2
2010.01 - Rev.B
Notice
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy of the information specified in this document. However, should you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no responsibility for such damage. The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM and other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. The Products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices). The Products specified in this document are not designed to be radiation tolerant. While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or malfunction for a variety of reasons. Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual. The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes. If a Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing. If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to obtain a license or permit under the Law.
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R1010A


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