
© Semiconductor Components Industries, LLC, 1994
October, 2016 − Rev. 13
1Publication Order Number:
MMBTA42LT1/D
MMBTA42L, SMMBTA42L,
MMBTA43L
High Voltage Transistors
NPN Silicon
Features
•S Prefix for Automotive and Other Applications Requiring Unique
Site and Control Change Requirements; AEC−Q101 Qualified and
PPAP Capable
•These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
MAXIMUM RATINGS
Characteristic Symbol Value Unit
Collector−Emitter Voltage
MMBTA42, SMMBTA42
MMBTA43
VCEO 300
200
Vdc
Collector−Base Voltage
MMBTA42, SMMBTA42
MMBTA43
VCBO 300
200
Vdc
Emitter−Base Voltage
MMBTA42, SMMBTA42
MMBTA43
VEBO 6.0
6.0
Vdc
Collector Current − Continuous IC500 mAdc
THERMAL CHARACTERISTICS
Characteristic Symbol Max Unit
Total Device Dissipation FR−5 Board
(Note 1) TA = 25°C
Derate above 25°C
PD225
1.8
mW
mW/°C
Thermal Resistance, Junction−to−Ambient RqJA 556 °C/W
Total Device Dissipation Alumina
Substrate (Note 2) TA = 25°C
Derate above 25°C
PD300
2.4
mW
mW/°C
Thermal Resistance, Junction−to−Ambient RqJA 417 °C/W
Junction and Storage Temperature TJ, Tstg −55 to +150 °C
Stresses exceeding those listed in the Maximum Ratings table may damage the
device. If any of these limits are exceeded, device functionality should not be
assumed, damage may occur and reliability may be affected.
1. FR−5 = 1.0 x 0.75 x 0.062 in.
2. Alumina = 0.4 x 0.3 x 0.024 in. 99.5% alumina.
SOT−23 (TO−236)
CASE 318
STYLE 6
2
3
1
www.onsemi.com
COLLECTOR
3
1
BASE
2
EMITTER
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
ORDERING INFORMATION
*Date Code orientation and/or overbar may
vary depending upon manufacturing location.
1
1D M G
G
1D = MMBTA42LT, SMMBTA42L
M1E = MMBTA43LT
M = Date Code*
G= Pb−Free Package
(Note: Microdot may be in either location)
MARKING DIAGRAMS
1
M1E M G
G

MMBTA42L, SMMBTA42L, MMBTA43L
www.onsemi.com
2
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Characteristic Symbol Min Max Unit
OFF CHARACTERISTICS
Collector−Emitter Breakdown Voltage (Note 3)
(IC = 1.0 mAdc, IB = 0) MMBTA42, SMMBTA42
MMBTA43
V(BR)CEO 300
200
−
−
Vdc
Collector−Base Breakdown Voltage
(IC = 100 mAdc, IE = 0) MMBTA42, SMMBTA42
MMBTA43
V(BR)CBO 300
200
−
−
Vdc
Emitter−Base Breakdown Voltage
(IE = 100 mAdc, IC = 0)
V(BR)EBO 6.0 −Vdc
Collector Cutoff Current
(VCB = 200 Vdc, IE = 0) MMBTA42, SMMBTA42
(VCB = 160 Vdc, IE = 0) MMBTA43
ICBO
−
−
0.1
0.1
mAdc
Emitter Cutoff Current
(VEB = 6.0 Vdc, IC = 0) MMBTA42, SMMBTA42
(VEB = 4.0 Vdc, IC = 0) MMBTA43
IEBO
−
−
0.1
0.1
mAdc
ON CHARACTERISTICS (Note 3)
DC Current Gain
(IC = 1.0 mAdc, VCE = 10 Vdc) Both Types
(IC = 10 mAdc, VCE = 10 Vdc) Both Types
(IC = 30 mAdc, VCE = 10 Vdc) MMBTA42, SMMBTA42
MMBTA43
hFE 25
40
40
40
−
−
−
−
−
Collector−Emitter Saturation Voltage
(IC = 20 mAdc, IB = 2.0 mAdc) MMBTA42, SMMBTA42
MMBTA43
VCE(sat)
−
−
0.5
0.5
Vdc
Base−Emitter Saturation Voltage
(IC = 20 mAdc, IB = 2.0 mAdc)
VBE(sat) −0.9 Vdc
SMALL−SIGNAL CHARACTERISTICS
Current−Gain − Bandwidth Product
(IC = 10 mAdc, VCE = 20 Vdc, f = 100 MHz)
fT50 −MHz
Collector−Base Capacitance
(VCB = 20 Vdc, IE = 0, f = 1.0 MHz) MMBTA42, SMMBTA42
MMBTA43
Ccb
−
−
3.0
4.0
pF
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
3. Pulse Test: Pulse Width v 300 ms, Duty Cycle v 2.0%.

MMBTA42L, SMMBTA42L, MMBTA43L
www.onsemi.com
3
TYPICAL CHARACTERISTICS
Figure 1. DC Current Gain
IC, COLLECTOR CURRENT (mA)
10010.1
10
100
hFE, DC CURRENT GAIN
1000
10
Figure 2. Collector−Emitter Saturation Voltage
vs. Collector Current
IC, COLLECTOR CURRENT (mA)
101
0.0
0.4
0.8
1.2
100
Figure 3. Base−Emitter Saturation Voltage vs.
Collector Current
IC, COLLECTOR CURRENT (mA)
10010.1
0
0.2
0.8
1.0
10
Figure 4. Base−Emitter On Voltage vs.
Collector Current
IC, COLLECTOR CURRENT (mA)
Figure 5. Base−Emitter Temperature
Coefficient
IC, COLLECTOR CURRENT (mA)
Figure 6. Capacitance
VR, REVERSE VOLTAGE (VOLTS)
100
0
100.1
0.1
1
10
C, CAPACITANCE (pF)
100
100
TJ = 150°C
VCE = 10 V
25°C
−55°C
VCE(sat), COLLECTOR−EMITTER
SATURATION VOLTAGE (V)
IC/IB = 10
150°C
25°C
−55°C
0.1
0.6
1.0
0.2
VBE(sat), BASE−EMITTER
SATURATION VOLTAGE (V)
IC/IB = 10
150°C
25°C
−55°C
0.6
0.4
0.1
0.7
0.9
0.5
0.3
VBE(on), BASE−EMITTER VOLTAGE (V)
10010.1
0
0.2
0.8
1.0
10
IC/IB = 10
150°C
25°C
−55°C
0.6
0.4
0.1
0.7
0.9
0.5
0.3
10010.1
−2.8
−2.0
10
qVB, TEMPERATURE COEFFICIENT (mV/°C)
VCE = 10 V
−55°C to 150°C
−0.4
−1.2
−2.4
0
−0.8
−1.6
qVB, for VBE
TJ = 25°C
f = 1 MHz
Cibo
Cobo
1

MMBTA42L, SMMBTA42L, MMBTA43L
www.onsemi.com
4
TYPICAL CHARACTERISTICS
Figure 7. Current−Gain — Bandwidth Product
IC, COLLECTOR CURRENT (mA)
101
10
fTau, CURRENT−GAIN BANDWIDTH (MHz)
100
100
VCE = 20 V
TJ = 25°C
Figure 8. Safe Operating Area
VCE, COLLECTOR EMITTER VOLTAGE (V)
101
0.001
IC, COLLECTOR CURRENT (A)
1
1000
10 ms
100
0.1
0.01
1.0 s
ORDERING INFORMATION
Device Order Number Package Type Shipping†
MMBTA42LT1G SOT−23
(Pb−Free)
3,000 / Tape & Reel
SMMBTA42LT1G SOT−23
(Pb−Free)
3,000 / Tape & Reel
MMBTA42LT3G SOT−23
(Pb−Free)
10,000 / Tape & Reel
SMMBTA42LT3G SOT−23
(Pb−Free)
10,000 / Tape & Reel
MMBTA43LT1G SOT−23
(Pb−Free)
3,000 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.

SOT−23 (TO−236)
CASE 318−08
ISSUE AS
DATE 30 JAN 2018
SCALE 4:1
D
A1
3
12
1
XXXMG
G
XXX = Specific Device Code
M = Date Code
G= Pb−Free Package
*This information is generic. Please refer to
device data sheet for actual part marking.
Pb−Free indicator, “G” or microdot “ G”,
may or may not be present.
GENERIC
MARKING DIAGRAM*
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH.
MINIMUM LEAD THICKNESS IS THE MINIMUM THICKNESS OF
THE BASE MATERIAL.
4. DIMENSIONS D AND E DO NOT INCLUDE MOLD FLASH,
PROTRUSIONS, OR GATE BURRS.
SOLDERING FOOTPRINT
VIEW C
L
0.25
L1
e
EE
b
A
SEE VIEW C
DIM
A
MIN NOM MAX MIN
MILLIMETERS
0.89 1.00 1.11 0.035
INCHES
A1 0.01 0.06 0.10 0.000
b0.37 0.44 0.50 0.015
c0.08 0.14 0.20 0.003
D2.80 2.90 3.04 0.110
E1.20 1.30 1.40 0.047
e1.78 1.90 2.04 0.070
L0.30 0.43 0.55 0.012
0.039 0.044
0.002 0.004
0.017 0.020
0.006 0.008
0.114 0.120
0.051 0.055
0.075 0.080
0.017 0.022
NOM MAX
L1
H
STYLE 22:
PIN 1. RETURN
2. OUTPUT
3. INPUT
STYLE 6:
PIN 1. BASE
2. EMITTER
3. COLLECTOR
STYLE 7:
PIN 1. EMITTER
2. BASE
3. COLLECTOR
STYLE 8:
PIN 1. ANODE
2. NO CONNECTION
3. CATHODE
STYLE 9:
PIN 1. ANODE
2. ANODE
3. CATHODE
STYLE 10:
PIN 1. DRAIN
2. SOURCE
3. GATE
STYLE 11:
PIN 1. ANODE
2. CATHODE
3. CATHODE−ANODE
STYLE 12:
PIN 1. CATHODE
2. CATHODE
3. ANODE
STYLE 13:
PIN 1. SOURCE
2. DRAIN
3. GATE
STYLE 14:
PIN 1. CATHODE
2. GATE
3. ANODE
STYLE 15:
PIN 1. GATE
2. CATHODE
3. ANODE
STYLE 16:
PIN 1. ANODE
2. CATHODE
3. CATHODE
STYLE 17:
PIN 1. NO CONNECTION
2. ANODE
3. CATHODE
STYLE 18:
PIN 1. NO CONNECTION
2. CATHODE
3. ANODE
STYLE 19:
PIN 1. CATHODE
2. ANODE
3. CATHODE−ANODE
STYLE 23:
PIN 1. ANODE
2. ANODE
3. CATHODE
STYLE 20:
PIN 1. CATHODE
2. ANODE
3. GATE
STYLE 21:
PIN 1. GATE
2. SOURCE
3. DRAIN
STYLE 1 THRU 5:
CANCELLED
STYLE 24:
PIN 1. GATE
2. DRAIN
3. SOURCE
STYLE 25:
PIN 1. ANODE
2. CATHODE
3. GATE
STYLE 26:
PIN 1. CATHODE
2. ANODE
3. NO CONNECTION
STYLE 27:
PIN 1. CATHODE
2. CATHODE
3. CATHODE
2.10 2.40 2.64 0.083 0.094 0.104
HE
0.35 0.54 0.69 0.014 0.021 0.027
c
0−−− 10 0 −−− 10
T°°°°
T
3X
TOP VIEW
SIDE VIEW
END VIEW
2.90
0.80
DIMENSIONS: MILLIMETERS
0.90
PITCH
3X
3X 0.95
RECOMMENDED
STYLE 28:
PIN 1. ANODE
2. ANODE
3. ANODE
MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
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SOT−23 (TO−236)
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