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This is information on a product in full production.
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MMBTA42
Small signal NPN transistor
Datasheet - production data
Figure 1: Internal schematic diagram
Features
Miniature SOT-23 plastic package for
surface mounting circuits
Tape and reel packaging
The PNP complementary type is MMBTA92
Applications
Video amplifier circuits (rgb cathode current
control)
Telephone wireline interface (hook switches,
dialer circuits)
Description
The device is manufactured in Epitaxial Planar
technology.
Table 1: Device summary
Order code
Package
Packaging
MMBTA42
SOT-23
tape and reel
SOT-23
Contents
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Contents
1 Absolute maximum ratings ............................................................. 3
2 Electrical characteristics ................................................................ 4
3 Package mechanical data ............................................................... 5
3.1 SOT-23 mechanical data .................................................................. 5
4 Revision history .............................................................................. 7
MMBTA42
Absolute maximum ratings
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1 Absolute maximum ratings
(Tcase = 25°C unless otherwise specified)
Table 2: Absolute maximum rating
Symbol
Parameter
Value
Unit
VCBO
Collector-base voltage (IE = 0)
300
V
VCEO
Collector-emitter voltage (IB = 0)
300
V
VEBO
Emitter-base voltage (IC = 0)
6
V
IC
Collector current
0.5
A
ICM
Collector peak current (tP < 5ms)
0.6
A
Ptot
Total dissipation at Tamb = 25°C
350
mW
Tstg
Storage temperature
-65 to 150
°C
TJ
Max. operating junction temperature
150
°C
Table 3: Thermal data
Symbol
Parameter
Value
Unit
Rthj-amb
Thermal resistance junction-ambient max (1)
357.1
°C/W
Notes:
(1)Device mounted on PCB area of 1 cm2.
Electrical characteristics
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2 Electrical characteristics
(Tcase = 25°C unless otherwise specified)
Table 4: Electrical characteristics
Symbol
Parameter
Test
conditions
Min.
Typ.
Max.
Unit
ICBO
Collector cut-off current
(IE =0)
VCB = 200 V
100
νΑ
V(BR)CBO
Collector-base breakdown voltage
(IE =0)
IC = 100 μA
300
V
V(BR)CEO(1)
Collector-emitter breakdown voltage (IB
=0)
IC = 1 mA
300
V
V(BR)EBO
Emitter-base breakdown voltage
(IC =0)
IC = 100 μA
6
V
VCE(sat)
Collector-emitter saturation voltage
IC = 20 mA;
IB = 2 mA
0.5
V
VBE(sat)
Base-emitter saturation voltage
IC = 20 mA;
IB = 2 mA
0.9
V
hFE
DC current gain
IC = 1 mA,
VCE = 10 V
25
IC = 10 mA,
VCE = 10 V
40
IC = 30 mA,
VCE = 10 V
40
fT
Transition frequency
IC = 10 mA,
VCE = 20 V
f = 100 MHz
50
ΜΗz
CCBO
Collector-base capacitance (IE = 0)
VCB = 20 V;
f = 1 MHz
3
nC
Notes:
(1)Pulse test: pulse duration = 300 μs, duty cycle ≤ 1.5 %
MMBTA42
Package mechanical data
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3 Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
3.1 SOT-23 mechanical data
Figure 2: SOT-23 mechanical drawing
Package mechanical data
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Table 5: SOT-23 mechanical data
Dim.
mm
Min.
Typ.
Max.
A
0.89
1.40
A1
0
0.10
B
0.30
0.51
C
0.085
0.18
D
2.75
3.04
e
0.85
1.05
e1
1.70
2.10
E
1.20
1.75
H
2.10
3.00
L
0.60
S
0.35
0.65
L1
0.25
0.55
a
Figure 3: SOT-23 recommended footprint
Dimensions are in mm.
MMBTA42
Revision history
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4 Revision history
Table 6: Document revision history
Date
Revision
Changes
06-Jan-2003
2
08-Nov-2007
3
Updated mechanical data.
07-May-2014
4
Updated Section 4: "Package mechanical data".
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