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 Power Transistors
2SC3795, 2SC3795A
Silicon NPN triple diffusion planar type
For high breakdown voltage high-speed switching
s Features
q q q q
Parameter Collector to base voltage Collector to 2SC3795 2SC3795A 2SC3795
Symbol VCBO VCES VCEO VEBO ICP IC IB
Ratings 800 900 800 900 500 8 10 5 3 40 2 150 -55 to +150
Unit V
16.70.3
s Absolute Maximum Ratings
(TC=25C)
7.50.2
3.10.1
4.20.2
High-speed switching High collector to base voltage VCBO Low collector to emitter saturation voltage VCE(sat) Full-pack package which can be installed to the heat sink with one screw
Unit: mm
0.70.1 10.00.2 5.50.2 2.70.2 4.20.2
4.0
1.40.1
1.30.2
Solder Dip
emitter voltage 2SC3795A Collector to emitter voltage Emitter to base voltage Peak collector current Collector current Base current Collector power TC=25C dissipation Ta=25C Junction temperature Storage temperature
14.00.5
V V V A A A W C C
0.5 +0.2 -0.1 0.80.1
2.540.25 5.080.5 1 2 3
PC Tj Tstg
1:Base 2:Collector 3:Emitter TO-220 Full Pack Package(a)
s Electrical Characteristics
Parameter Collector cutoff current Emitter cutoff current Collector to emitter voltage Forward current transfer ratio Collector to emitter saturation voltage Base to emitter saturation voltage Transition frequency Turn-on time Storage time Fall time
*V CEO(sus)
(TC=25C)
Symbol ICBO IEBO VCEO(sus) hFE1 hFE2 VCE(sat) VBE(sat) fT
*
Conditions VCB = 800V, IE = 0 VCB = 900V, IE = 0 VEB = 5V, IC = 0 IC = 0.2A, L = 25mH VCE = 5V, IC = 0.1A VCE = 5V, IC = 3A IC = 3A, IB = 0.6A IC = 3A, IB = 0.6A VCE = 10V, IC = 0.5A, f = 1MHz
min
typ
max 100 100 100
Unit A A V
2SC3795 2SC3795A
500 15 8 1 1.5 8 1
V V MHz s s s
2SC3795 2SC3795A
ton tstg IC = 3A, IB1 = 0.6A, IB2 = - 0.6A, VCC = 200V
1.2 3 1 1.2
2SC3795 2SC3795A
tf
Test circuit
50/60Hz mercury relay L 25mH 120 6V 1 15V
X
Y
G
1
Power Transistors
PC -- Ta
80 8 (1) TC=Ta (2) With a 100 x 100 x 2mm Al heat sink (3) Without heat sink (PC=2.0W) TC=25C 7
2SC3795, 2SC3795A
IC -- VCE
Collector to emitter saturation voltage VCE(sat) (V)
100 IC/IB=5 30 10 3 1 0.3 -25C 0.1 0.03 0.01 0.01 0.03 25C TC=100C
VCE(sat) -- IC
Collector power dissipation PC (W)
70 60 50 40 30 20 10 0 0 20 40 (2) (3) (1)
Collector current IC (A)
6 5 4 3 2 1 0
IB=1200mA 1000mA 800mA 600mA 400mA 300mA 200mA 150mA 100mA 50mA 20mA
60
80 100 120 140 160
0
2
4
6
8
10
0.1
0.3
1
3
10
Ambient temperature Ta (C)
Collector to emitter voltage VCE (V)
Collector current IC (A)
VBE(sat) -- IC
100 1000 IC/IB=5 30 10 3 25C 1 0.3 0.1 0.03 0.01 0.01 0.03 TC=-25C 100C
hFE -- IC
1000 VCE=5V 300 100 30 10 3 1 0.3 0.1 0.01 0.03
fT -- IC
VCE=10V f=1MHz TC=25C
Base to emitter saturation voltage VBE(sat) (V)
Forward current transfer ratio hFE
100 TC=100C 30 -25C 10 3 1 0.3 0.1 0.01 0.03 25C
0.1
0.3
1
3
10
0.1
0.3
1
3
10
Transition frequency fT (MHz)
300
0.1
0.3
1
3
10
Collector current IC (A)
Collector current IC (A)
Collector current IC (A)
Cob -- VCB
10000 100 IE=0 f=1MHz TC=25C 30
ton, tstg, tf -- IC
Pulsed tw=1ms Duty cycle=1% IC/IB=5 (IB1=-IB2) VCC=200V TC=25C tstg ton tf 0.3 0.1 0.03 0.01
Area of safe operation (ASO)
10 3 1 0.3 0.1 0.03 0.01 Non repetitive pulse 0.003 T =25C C ICP
IC 10ms DC t=0.5ms 1ms
Collector output capacitance Cob (pF)
3000 1000 300 100 30 10 3 1 0.1
Switching time ton,tstg,tf (s)
10 3 1
Collector current IC (A)
0.3
1
3
10
30
100
0
1
2
3
4
5
6
7
8
1
3
10
30
100
300
Collector to base voltage VCB (V)
Collector current IC (A)
Collector to emitter voltage VCE (V)
2
2SC3795/2SC3795A
1000
Power Transistors
Area of safe operation, reverse bias ASO
8 7 Lcoil=50H IC/IB=5 (IB1=-IB2) TC=100C
2SC3795, 2SC3795A
Reverse bias ASO measuring circuit
L coil IB1 Vin T.U.T IC
Collector current IC (A)
6 5 4 3 2 1 0 0
2SC3795A 2SC3795
-IB2
VCC
tW
Vclamp
100 200 300 400 500 600 700 800
Collector to emitter voltage VCE (V)
Rth(t) -- t
1000 (1) PT=10V x 0.2A (2W) and without heat sink (2) PT=10V x 1.0A (10W) and with a 100 x 100 x 2mm Al heat sink
Thermal resistance Rth(t) (C/W)
100 (1)
10
(2)
1
0.1 10-4
10-3
10-2
10-1
1
10
102
103
104
Time t (s)
3


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