Mechanical Data
Electrical Characteristics
Features
Maximum Ratings
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 Temperature Range
OFF CHARACTERISTICS (Note 5)
Collector-Base Breakdown Voltage
Collector-Emitter Breakdown Voltage
Emitter-Base Breakdown Voltage
Collector Cutoff Current
Emitter Cutoff Current
ON CHARACTERISTICS (Note 5)
DC Current Gain
Collector-Emitter Saturation Voltage
Base-Emitter Saturation Voltage
SMALL SIGNAL CHARACTERISTICS
Output Capacitance
Small Signal Current Gain
Current Gain-Bandwidth Product
Noise Figure
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Notes:
DS30173 Rev. 8 - 2
Epitaxial Planar Die Construction
Complementary PNP Type Available (MMST5401)
Ideal for Low Power Amplification and Switching
Ultra-Small Surface Mount Package
Lead Free/RoHS Compliant (Note 2)
"Green" Device (Note 3 and 4)
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: K4N, See Page 3
Ordering & Date Code Information: See Page 3
Weight: 0.006 grams (approximate)
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
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
5. Short duration pulse test used to minimize self-heating effect.
can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
Code 0627 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
Characteristic
Characteristic
@T
A
= 25°C unless otherwise specified
@T
A
= 25°C unless otherwise specified
V
V
V
Symbol
V
V
(BR)CBO
(BR)CEO
(BR)EBO
CE(SAT)
BE(SAT)
I
C
I
h
CBO
EBO
NF
h
f
www.diodes.com
obo
FE
T
fe
Symbol
T
K
J
V
V
V
j
R
, T
1 of 3
P
CBO
CEO
EBO
I
θ JA
B
C
d
STG
NPN SMALL SIGNAL SURFACE MOUNT TRANSISTOR
Min
180
160
100
6.0
80
80
30
50
⎯
⎯
⎯
⎯
⎯
⎯
B
C
A
C
G
H
E
Max
0.15
0.20
250
250
300
D
1.0
6.0
8.0
⎯
⎯
⎯
50
50
⎯
⎯
E
E
B C
MHz
Unit
nA
μA
nA
pF
dB
⎯
⎯
V
V
V
V
V
L
-55 to +150
I
I
I
V
V
V
I
I
I
I
I
I
I
V
V
V
V
Value
C
C
E
C
C
C
C
C
C
C
180
160
200
200
625
CB
CB
EB
CB
CE
CE
CE
6.0
= 10mA, I
= 10mA, I
= 100μA, I
= 1.0mA, I
= 10μA, I
= 1.0mA, V
= 10mA, V
= 50mA, V
= 50mA, I
= 50mA, I
= 4.0V, I
= 10V, I
= 5.0V, I
= 120V, I
= 120V, I
= 10V, f = 1.0MHz, I
= 10V, I
M
C
B
B
B
B
C
C
C
C
E
B
= 0
E
E
CE
CE
CE
= 1.0mA
= 1.0mA
= 5.0mA
= 5.0mA
= 1.0mA, f = 1.0kHz
= 10mA, f = 100MHz
= 0
= 0
= 0
= 200μA, R
= 0
= 0, T
Test Condition
MMST5551
= 5.0V
= 5.0V
= 5.0V
A
All Dimens ons in mm
Dim
= 100°C
M
A
B
C
D
G
H
K
E
J
L
α
E
S
= 0
= 1.0kΩ, f = 1.0kHz
SOT-323
°C/W
Unit
mW
© Diodes Incorporated
0.25
1.15
2.00
0.65 Nominal
0.30
1.20
1.80
0.90
0.25
0.10
mA
Min
°C
0.0
V
V
V
0°
i
MMST5551
Max
0.40
1.35
2.20
0.40
1.40
2.20
0.10
1.00
0.40
0.18
8°