MMBTA44-G (NPN)
RoHS Device
QW-BTR53 Page 1
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Dimensions in inches and (millimeter)
SOT-23
General Purpose Transistor
Features
- High Collector-emitter voltage.
- Ultra small surface mount package.
1
Base
2
Emitter
Collector
3
Diagram:
Symbol
Parameter Value Unit
Collector-base voltage
Collector-emitter voltage
Emitter-base voltage
Collector current-continuous
Collector power dissipation
Junction temperature range
VCBO
VCEO
VEBO
IC
PC
TJ
400
400
6
200
350
150
V
V
V
mA
mW
°C
Maximum Ratings (at TA=25°C unless otherwise noted)
Collector current-pulsed ICM 300 mA
Thermal resistance from junction to ambient RΘJA 357 °C/W
TSTG -55 to +150 °C
Storage temperature range
3
1 2
0.119(3.00)
0.110(2.80)
0.056(1.40)
0.047(1.20)
0.079(2.00)
0.071(1.80)
0.041(1.05)
0.035(0.90)
0.020(0.50)
0.012(0.30)
0.006(0.15)
0.003(0.08)
0.100(2.550)
0.089(2.250)
0.004(0.10) max
0.012(0.30)
0.020(0.50)
Comchip Technology CO., LTD.
Company reserves the right to improve product design , functions and reliability without notice.
Mechanical data
- Case: SOT-23 Standard package, molded
plastic.
- Mounting position: Any.
- Weight: 0.0078 grams(approx.).
- Terminals: Solderable per MIL-STD-750,
method 2026.
1 : Base
2 : Emitter
3 : Collector
QW-BTR53 Page 2
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Electrical Characteristics (Ta=25°C, unless otherwise specified)
Parameter Symbol Unit
Collector-base breakdown voltage
Collector-emitter breakdown voltage
Emitter-base breakdown voltage
Collector cut-off current
Emitter cut-off current
Collector output capacitance
Base-emitter saturation voltage
Conditions
V(BR)CBO
V(BR)CEO*
V(BR)EBO
ICBO
IEBO
hFE(2)*
Cob
VBE(sat)*
IC=100μA, IE=0
IC=1mA, IB=0
IE=10μA, IC=0
VCB=400V, IE=0
VEB=4V, IC=0
VCE=10V, IC=10mA
VCB=20V, IE=0, f=1MHZ
IC=10mA, IB=1mA
400
400
6
50
0.1
0.1
200
7
0.75
Min Max
V
V
V
μA
μA
pF
V
General Purpose Transistor
DC current gain
hFE(1)*
VCE=10V, IC=1mA 40
hFE(3)*
VCE=10V, IC=50mA 45
Comchip Technology CO., LTD.
Company reserves the right to improve product design , functions and reliability without notice.
hFE(4)*
VCE=10V, IC=100mA 40
VCE(sat)2*
IC=10mA, IB=1mA 0.5
Collector-emitter saturation voltage
VCE(sat)1*
IC=1mA, IB=0.1mA 0.4
VCE(sat)3*
IC=50mA, IB=5mA 0.75
Emitter input capacitance Cib
VEB=0.5V, IC=0, f=1MHZ130 pF
V
V
V
*Pulse test: pulse width ≤300µs, duty cycle≤2.0%
RATING AND CHARACTERISTIC CURVES (MMBTA44-G)
Page 3
QW-BTR53
General Purpose Transistor
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Collector Current , Ic (mA)
DC Current Gain, hFE
0.1 1 10 100
0
100
1000
100
Collector Current , Ic (mA)
0 1
0.6
0
Fig.4 - VCEsat — IC
1.0
Fig.1 - Static Characteristic
Collector Current, Ic (mA)
Collector-Emitter Voltage, VCE (V)
0
8
12
16
0 5 10 15 20
Fig.2 - hFE— IC
10
VCEsat (mV)
14
10
6
4
2
100
1
100
10
300
10
Comchip Technology CO., LTD.
IB=8uA
16uA
24uA
32uA
40uA
48uA
56uA
64uA
72uA
80uA
-500uA
-450uA
COMMON
EMITTER
Ta=25°C
Ta=100°C
Ta= 25°C
Ta=100°C
Ta= 25°C
ß=10ß=10
0.8
0.4
0.2
VBEsat, (V)
Collector Current, Ic (mA)
Fig.3 - VBEsat — IC
BASE-Emitter Saturation Voltage
Fig. 5 - Cob/Cib — VCB/VEB
Capacitance, C ( pF)
Fig.6 - PC — Ta
Ambient Temperature , Ta (°C)
Collector Power Dissipation, Pc (mW)
0 25 50 75 100 125 150
0
100
200
300
400
0.1 110 20
0
10
100
Reverse Voltge , V ( V )
350
250
150
50
Cib
500
Cob
f=1MHZ
IE=0/IC=0
Ta=25°C
Collector-Emitter Saturation Voltage
Company reserves the right to improve product design , functions and reliability without notice.
VCE=10V
General Purpose Transistor
Page 4
QW-BTR53
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Comchip Technology CO., LTD.
Reel Taping Specification
B C dD D2D1
SOT-23
SYMBOL
A
(mm)
(inch) 2.142 ± 0.039
4.00 ± 0.10
1.50 ± 0.10 54.40 ± 1.00 13.00 ± 1.00
4.00 ± 0.10 2.00 ± 0.10
178.00 ± 2.00
0.059 ± 0.004 7.008 ± 0.079 0.512 ± 0.039
SYMBOL
(mm)
(inch) 0. ± 0.004157 0.157 ± 0.004 0.079 ± 0.004
E F P P0P1W W1
1.75 ± 0.10
0.069 ± 0.004
3.50 ± 0.10
0.138 ± 0.004
SOT-23
3.15 ± 0.10
0.124 ± 0.004
2.77 ± 0.10
0.109 ± 0.004
1.22 ± 0.10
0.048 ± 0.004
12.30 ± 1.00
0.484 ± 0.039
8.00 + 0.30 / - 0.10
0.315 + 0.012 / - 0.004
XX
d
F E
B
P1 P0
o
120
D1
D2
D
W1
Company reserves the right to improve product design , functions and reliability without notice.
Standard Packaging
Case Type
Qty Per Reel
(Pcs)
3,000
SOT-23
Reel Size
(inch)
7
Part Number
MMBTA44-G
Marking Code
3D
Marking Code
3D
3
1 2
General Purpose Transistor
Page 5
QW-BTR53
REV:A
Comchip Technology CO., LTD.
Case Type
Qty Per Reel
(Pcs)
3,000
SOT-23
Reel Size
(inch)
7
Company reserves the right to improve product design , functions and reliability without notice.
Suggested PAD Layout
A
C
B
DE
SIZE
(inch)
0.024
(mm)
0.60
0.80
1.90
0.031
0.075
SOT-23
2.02 0.080
A
B
C
D
2.82 0.111
E
