MMBTA44/45
NPN SILICON TRANSISTOR
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VCBO
RATINGS
500
UNIT
V
MMBTA44
Collector-Base Voltage
Collector-Emitter Voltage
MMBTA45
MMBTA44
MMBTA45
400
V
400
V
VCEO
350
V
Emitter-Base Voltage
Collector Current
VEBO
IC
6
V
300
mA
mW
W
Ta=25°C
TC=25°C
350
Power Dissipation
PD
1.5
Junction Temperature
Storage Temperature
TJ
+150
-40 ~ +150
°C
°C
TSTG
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS
(TJ =25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNIT
Collector-Base Breakdown
Voltage
MMBTA44
MMBTA45
500
400
400
350
6
V
V
V
V
V
BVCBO
IC=100μA, IB=0
Collector-Emitter Breakdown MMBTA44
Voltage
BVCEO
BVEBO
IC =1mA, IB=0
MMBTA45
Emitter-Base Breakdown Voltage
Collector-Emitter Saturation Voltage
Base-Emitter Saturation Voltage
IE=100μA, IC =0
IC =1mA, IB=0.1mA
IC =10mA, IB=1mA
IC =50mA, IB=5mA
0.4
0.5
V
V
VCE(SAT)
0.75
V
VBE(SAT)
ICBO
IC 10mA, IB=1mA
VCB=400V, IE =0
VCB=320V, IE =0
VCE =400V, IB=0
0.75
0.1
0.1
0.5
0.5
0.1
V
MMBTA44
μA
μA
μA
μA
μA
Collector Cut-off Current
MMBTA45
MMBTA44
MMBTA45
Collector Cut-off Current
Emitter Cut-off Current
ICES
VCE =320V, IB=0
IEBO
hFE1
hFE2
hFE3
hFE4
VEB=4V, IC =0
VCE =10V, IC =1mA
40
50
45
40
VCE =10V, IC =10mA
VCE =10V, IC =50mA
VCE =10V, IC =100mA
VCE =20V, IC =10mA
240
DC Current Gain (Note)
Current Gain Bandwidth Product
fT
50
MHz
pF
f=100MHz
Output Capacitance
Cob
VCB=20V, IE =0, f=1MHz
7
Note: Pulse test: PW<300μs, Duty Cycle<2%
UNISONIC TECHNOLOGIES CO., LTD
2 of 4
QW-R206-007.E
www.unisonic.com.tw