diodes incorporated MMST6427 Service Manual
Lead-free Green
A
M
J
L
ED
B
C
H
K
G
B
E
C
E
B
C
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Features
· Epitaxial Planar Die Construction
· Ideal for Low Power Amplification and Switching
· High Current Gain
· 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 (See Page 3): K1D
· Ordering & Date Code Information: See Page 3
· Weight: 0.006 grams (approximate)
MMST6427
NPN SURFACE MOUNT DARLINGTON TRANSISTOR
SOT-323
Dim Min Max
A
0.25 0.40
B
1.15 1.35
C
2.00 2.20
D
0.65 Nominal
E
0.30 0.40
G
1.20 1.40
H
1.80 2.20
J
0.0 0.10
K
0.90 1.00
L
0.25 0.40
M
0.10 0.18
a
All Dimensions in mm
0° 8°
Maximum Ratings
Characteristic Symbol Value Unit
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Collector Current - Continuous (Note 1)
Power Dissipation (Note 1)
Thermal Resistance, Junction to Ambient (Note 1)
Operating and Storage and Temperature Range
Note: 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.
@ TA = 25°C unless otherwise specified
V
V
V
R
Tj, T
CBO
CEO
EBO
I
C
P
d
qJA
STG
40 V
40 V
12 V
500 mA
200
625 °C/W
-55 to +150 °C
mW
DS30166 Rev. 9 - 2 1 of 3 MMST6427
www.diodes.com ã Diodes Incorporated
Electrical Characteristics
0
50
100
25
50
75
100 125
150
175
200
P , POWER DISSIPATION (mW)
D
T , AMBIENT TEMPERATURE (°C)
A
Fig. 1, Max Power Dissipation vs
Ambient Temperature
150
200
250
300
0
Note 1
1
10
100
1000
V , COLLECTOR TO EMITTER
CE(SAT)
SATURATION VOLTAGE (V)
I , COLLECTOR CURRENT (mA)
C
Fig. 2, Collector Emitter Saturation Voltage
vs. Collector Current
T = 25°C
A
T = -50°C
A
T = 150°C
A
0.45
0.40
0.50
0.55
0.60
0.65
0.70
0.75
0.80
0.85
0.90
0.95
1.10
1.05
1.00
I
C
I
B
= 1000
100
1,000
100,000
1,000,000
10,000
1
10
1000
100
h , DC CURRENT GAIN
FE
I , COLLECTOR CURRENT (mA)
C
Fig. 3, DC Current Gain vs
Collector Current
T = -50°C
A
T = 25°C
A
T = 150°C
A
V = 5V
CE
0.1
1
10
100
V , BASE EMITTER VOLTAGE (V)
BE(ON)
I , COLLECTOR CURRENT (mA)
C
Fig. 4, Base Emitter Voltage
vs. Collector Current
T = 25°C
A
T = -50°C
A
T = 150°C
A
0.3
0.2
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.6
1.5
1.4
V = 5V
CE
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
Emitter Cutoff Current
ON CHARACTERISTICS (Note 5)
DC Current Gain
Collector-Emitter Saturation Voltage
Base-Emitter Saturation Voltage
Base-Emitter On Voltage
SMALL SIGNAL CHARACTERISTICS
Output Capacitance
Input Capacitance
@ TA = 25°C unless otherwise specified
V
(BR)CBO
V
(BR)CEO
V
(BR)EBO
I
CBO
I
CEO
I
EBO
h
V
CE(SAT)
V
BE(SAT)
V
BE(ON)
C
C
FE
obo
ibo
40 ¾ V
40 ¾ V
12 ¾ V
¾ 50 nA
¾ 1.0 mA
¾ 50 nA
10,000
20,000
14,000
¾
¾ 2.0 V
¾ 1.75 V
8.0 Typical pF
15 Typical pF
100,000
200,000
140,000
1.2
1.5
IC = 100mA, IE = 0
IC = 100mA, IB = 0
IE = 10mA, IC = 0
VCB = 30V, IE = 0
V
= 25V, IB = 0
CE
V
= 10V, IC = 0
EB
IC = 10mA, VCE = 5.0V
IC = 100mA, V
¾
IC = 500mA, VCE = 5.0V
IC = 50mA, IB = 0.5mA
V
IC = 500mA, IB = 0.5mA
IC = 500mA, IB = 0.5mA
IC = 50mA, VCE =5.0V
VCB = 10V, f = 1.0MHz, IE = 0
VEB = 0.5V, f = 1.0MHz, IC = 0
CE
= 5.0V
DS30166 Rev. 9 - 2 2 of 3 MMST6427
www.diodes.com
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