MMBT4126
Document number: DS30106 Rev. 10 - 2
1 of 6
www.diodes.com
June 2016
© Diodes Incorporated
MMBT4126
25V PNP SMALL SIGNAL TRANSISTOR IN SOT23
Features
Epitaxial Planar Die Construction
Ideal for Medium Power Amplification and Switching
Complementary NPN Type: MMBT4124
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Qualified to AEC-Q101 Standards for High Reliability
Mechanical Data
Case: SOT23
Case Material: Molded plastic, ―Green‖ Molding Compound;
UL Flammability Classification Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminals: Finish – Matte Tin Plated Leads, Solderable per
MIL-STD-202, Method 208
Weight: 0.008 grams (Approximate)
Ordering Information (Note 4)
Product
Status
Compliance
Marking
Reel Size (inches)
Tape Width (mm)
Quantity Per Reel
MMBT4126-7-F
Active
AEC-Q101
K2B
7
8
3,000
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green‖ products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. For packaging details, go to our website at http://www.diodes.com/products/packages.html.
Marking Information
Date Code Key
Year
2016
2017
2018
2019
2020
2021
2022
2023
Code
D
E
F
G
H
I
J
K
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
Top View
SOT23
Device Symbol
Top View
Pin-Out
C
E
B
K2B = Product Type Marking Code
YM = Date Code Marking
Y or Y = Year (ex: D = 2016)
M or M = Month (ex: 9 = September)
SOT23
MMBT4126
Document number: DS30106 Rev. 10 - 2
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June 2016
© Diodes Incorporated
MMBT4126
Absolute Maximum Ratings (@TA = +25°C unless otherwise specified.)
Characteristic
Symbol
Value
Unit
Collector-Base Voltage
VCBO
-25
V
Collector-Emitter Voltage
VCEO
-25
V
Emitter-Base Voltage
VEBO
-4.0
V
Collector Current
IC
-200
mA
Thermal Characteristics (@TA = +25°C unless otherwise specified.)
Characteristic
Symbol
Value
Unit
Power Dissipation (Note 5)
PD
200
mW
Thermal Resistance, Junction to Ambient Air (Note 5)
RθJA
625
°C/W
Operating and Storage Temperature Range
TJ, TSTG
-55 to +150
°C
ESD Ratings (Note 6)
Characteristic
Symbol
Value
Unit
JEDEC Class
Electrostatic Discharge - Human Body Model
ESD HBM
4,000
V
3A
Electrostatic Discharge - Machine Model
ESD MM
400
V
C
Notes: 5. For the device mounted on minimum recommended pad layout FR-4 PCB with high coverage of single sided 1oz copper, in still air conditions; the device
is measured when operating in a steady-state condition.
6. Refer to JEDEC specification JESD22-A114 and JESD22-A115.
Thermal Characteristics and Derating Information
0
50
100
150
200
250
0 120 200
P , POWER DISSIPATION (mW)
D
T , AMBIENT TEMPERATURE ( C)
Figure 1 Power Derating Curve
A°
16040 80
MMBT4126
Document number: DS30106 Rev. 10 - 2
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June 2016
© Diodes Incorporated
MMBT4126
Electrical Characteristics (@TA = +25°C unless otherwise specified.)
Characteristic
Symbol
Min
Typ
Max
Unit
Test Condition
OFF CHARACTERISTICS
Collector-Base Breakdown Voltage
BVCBO
-25
—
—
V
IC = -10µA, IB = 0
Collector-Emitter Breakdown Voltage (Note 7)
BVCEO
-25
—
—
V
IC = -10mA, IB = 0
Emitter-Base Breakdown Voltage
BVEBO
-4.0
—
—
V
IE = -10µA, IC = 0
Collector Cut-Off Current
ICBO
—
—
-50
nA
VCB = -20V, IE = 0
Collector Cut-Off Current
IEBO
—
—
-50
nA
VEB = -3.0V, IC = 0
ON CHARACTERISTICS (Note 7)
DC Current Gain
hFE
120
60
—
—
360
—
—
IC = -2.0mA, VCE = -1.0V
IC = -50mA, VCE = -1.0V
Collector-Emitter Saturation Voltage
VCE(SAT)
—
—
-0.4
V
IC = -50mA, IB = -5.0mA
Base-Emitter Saturation Voltage
VBE(SAT)
—
—
-0.95
V
IC = -50mA, IB = 5.0mA
SMALL SIGNAL CHARACTERISTICS
Output Capacitance
COBO
—
—
4.5
pF
VCB = -5.0V, f = 1.0MHz, IE = 0
Input Capacitance
CIBO
—
—
10
pF
VEB = -0.5V, f = 1.0MHz, IC = 0
Small Signal Current Gain
hFE
120
—
480
—
VCE = -1.0V, IC = -2.0mA,
f = 1.0kHz
Current Gain Bandwidth Product
fT
250
—
—
MHz
VCE = -20V, IC = -10mA,
f = 100MHz
Noise Figure
NF
—
—
4.0
dB
VCE = -5.0V, IC = -100A,
RS = 1.0kΩ f = 1.0kHz
Note: 7. Short duration pulse test used to minimize self-heating effect.
MMBT4126
Document number: DS30106 Rev. 10 - 2
5 of 6
www.diodes.com
June 2016
© Diodes Incorporated
MMBT4126
Package Outline Dimensions
Please see http://www.diodes.com/package-outlines.html for the latest version.
SOT23
SOT23
Dim
Min
Max
Typ
A
0.37
0.51
0.40
B
1.20
1.40
1.30
C
2.30
2.50
2.40
D
0.89
1.03
0.915
F
0.45
0.60
0.535
G
1.78
2.05
1.83
H
2.80
3.00
2.90
J
0.013
0.10
0.05
K
0.890
1.00
0.975
K1
0.903
1.10
1.025
L
0.45
0.61
0.55
L1
0.25
0.55
0.40
M
0.085
0.150
0.110
a
0°
8°
--
All Dimensions in mm
Suggested Pad Layout
Please see http://www.diodes.com/package-outlines.html for the latest version.
SOT23
Dimensions
Value (in mm)
C
2.0
X
0.8
X1
1.35
Y
0.9
Y1
2.9
J
K1 K
L1
GAUGE PLANE
0.25
H
L
M
All 7°
A
CB
D
G
F
a
X
Y
Y1 C
X1
MMBT4126
Document number: DS30106 Rev. 10 - 2
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www.diodes.com
June 2016
© Diodes Incorporated
MMBT4126
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein 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 Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2016, Diodes Incorporated
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