Page 1
Features
• Epitaxial Planar Die Construction
• Complementary PNP Type Available (MMSTA92)
• Ideal for Low Power Amplification and Switching
• Ultra-Small Surface Mount Package
• Lead Free/RoHS Compliant (Note 2)
• "Green" Device (Note 3 and 4)
Mechanical Data
• Case: SOT-323
• Case Material: Molded Plastic, "Green" Molding Compound,
Note 4. UL Flammability Classification Rating 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020C
• Terminal Connections: See Diagram
• Terminals: Solderable per MIL-STD-202, Method 208
• Lead Free Plating (Matte Tin Finish annealed over Alloy 42
leadframe).
• Marking Information: K3M, See Page 3
• Ordering & Date Code Information: See Page 3
• Weight: 0.006 grams (approximate)
MMSTA42
NPN SMALL SIGNAL SURFACE MOUNT TRANSISTOR
A
C
BE
G
H
K
J
C
B
SOT-323
Dim Min Max
A 0.25 0.40
C
B
B 1.15 1.35
C 2.00 2.20
D 0.65 Nominal
E 0.30 0.40
G 1.20 1.40
M
H 1.80 2.20
J 0.0 0.10
L
ED
K 0.90 1.00
L 0.25 0.40
M 0.10 0.18
α
All Dimens ons in mm i
0° 8°
E
Maximum Ratings @T
= 25°C unless otherwise specified
A
Characteristic Symbol Value Unit
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Collector Current (Note 1)
Power Dissipation (Note 1)
Thermal Resistance, Junction to Ambient (Note 1)
Operating and Storage Temperature Range
V
V
V
R
Tj, T
CBO
CEO
EBO
I
C
P
d
JA
θ
STG
300 V
300 V
6.0 V
200 mA
200 mW
625
-55 to +150
°C/W
°C
Electrical Characteristics @T
Characteristic Symbol Min Max Unit Test Condition
OFF CHARACTERISTICS (Note 5)
Collector-Base Breakdown Voltage
Collector-Emitter Breakdown Voltage
Emitter-Base Breakdown Voltage
Collector Cutoff Current
Collector Cutoff Current
ON CHARACTERISTICS (Note 5)
DC Current Gain
Collector-Emitter Saturation Voltage
Base-Emitter Saturation Voltage
SMALL SIGNAL CHARACTERISTICS
Output Capacitance
Current Gain-Bandwidth Product
Notes: 1. Device mounted on FR-4 PCB, 1 inch x 0.85 inch x 0.062 inch; pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which
can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
2. No purposefully added lead.
3. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
4. Product manufactured with Date Code 0627 (week 27, 2006) and newer are built with Green Molding Compound. Product manufactured prior to Date
Code 0627 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
5. Short duration pulse test used to minimize self-heating effect.
DS30175 Rev. 10 - 2 1 of 3
= 25°C unless otherwise specified
A
V
(BR)CBO
V
(BR)CEO
V
(BR)EBO
I
CBO
I
EBO
h
FE
V
CE(SAT)
V
BE(SAT)
C
cb
f
T
www.diodes.com
300
300
6.0
⎯
⎯
25
40
40
⎯
⎯
⎯
50
⎯
⎯
⎯
V
V
V
100 nA
100 nA
⎯ ⎯
0.5 V
0.9 V
3.0 pF
MHz
⎯
IC = 100μA, IE = 0
IC = 1.0mA, IB = 0
IE = 100μA, IC = 0
VCB = 200V, IE = 0
V
= 6.0V, IC = 0
CE
IC = 1.0mA, VCE = 10V
IC = 10mA, VCE = 10V
IC = 30mA, V
CE
= 10V
IC = 20mA, IB = 2.0mA
IC = 20mA, IB = 2.0mA
VCB = 20V, f = 1.0MHz, IE = 0
VCE = 20V, IC = 10mA,
f = 100MHz
© Diodes Incorporated
MMSTA42
Page 2
P, P
OWER
PATIO
N
C
O
CTO
R T
O
T
TER
C CUR
RENT G
T
TER VOLTAG
G
T
H P
R
ODUCT
H
(mW)
DISSI
200
150
100
2.0
I
1.8
C
= 10
I
B
1.6
1.4
EMI
T = 150°C
A
1.2
1.0
LLE
0.8
T = 25°C
A
50
D
10,000
1,000
AIN
100
FE
h, D
10
100
z)
0
0
1
1
25 50
T , AMBIENT TEMPERATURE (°C)
A
75
100 125
Fig. 1, Max Power Dissipation vs.
Ambient Temperature
V = 5V
CE
T = 150°C
A
T = -50°C
A
T = 25°C
A
10
I , COLLECTOR CURRENT (mA)
C
Fig. 3, DC Current Gain vs.
Collector Current
V = 5V
CE
100
150
175
200
1,000
0.6
SATURATION VOLTAGE (V)
0.4
CE(SAT)
V,
0.2
0
110
I , COLLECTOR CURRENT (mA)
C
100
T = -50°C
A
1,000
Fig. 2, Collector Emitter Saturation Voltage
vs. Collector Current
1.0
V = 5V
CE
0.9
E (V)
0.8
T = -50°C
A
0.7
0.6
0.5
T = 25°C
A
0.4
0.3
BE(ON)
V , BASE EMI
0.2
T = 150°C
A
0.1
0.1
Fig. 4, Base Emitter Voltage vs. Collector Current
110
I , COLLECTOR CURRENT (mA)
C
100
(M
10
AIN BANDWID
T
f,
1
1
I , COLLECTOR CURRENT (mA)
C
10
Fig. 5, Gain Bandwidth Prod uct vs.
Collector Current
DS30175 Rev. 10 - 2 2 of 3
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MMSTA42
© Diodes Incorporated
Page 3
Ordering Information (Note 4 & 6)
Device
MMSTA42-7-F
Notes: 6. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Packaging Shipping
SOT-323 3000/Tape & Reel
Marking Information
Date Code Key
Year 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Code J K L M N P R S T U V W X Y Z
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Code 1 2 3 4 5 6 7 8 9 O N D
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product
described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall
assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website,
harmless against all damages.
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written
approval of the President of Diodes Incorporated.
K3M
K3M= Product Type Marking Code
YM = Date Code Marking
Y = Year ex: N = 2002
YM
M = Month ex: 9 = September
IMPORTANT NOTICE
LIFE SUPPORT
DS30175 Rev. 10 - 2 3 of 3
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MMSTA42
© Diodes Incorporated
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