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MMST5551_1 Datasheet, PDF (1/4 Pages) Diodes Incorporated – NPN SMALL SIGNAL SURFACE MOUNT TRANSISTOR
SPICE MODEL: MMST5551
Lead-free Green
MMST5551
NPN SMALL SIGNAL SURFACE MOUNT TRANSISTOR
Features
• 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)
Mechanical Data
• Case: SOT-323
K
• Case Material: Molded Plastic, "Green" Molding
Compound, Note 4. UL Flammability Classification Rating
94V-0
J
• 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 2) : K4N
• Ordering & Date Code Information: See Page 2
• Weight: 0.006 grams (approximate)
A
C
BC
B
E
G
H
DE
L
C
B
E
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
M
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
α
0°
8°
All Dimensions in mm
Maximum Ratings @ TA = 25°C unless otherwise specified
Characteristic
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
Symbol
VCBO
VCEO
VEBO
IC
Pd
RθJA
Tj, TSTG
Value
180
160
6.0
200
200
625
-55 to +150
Unit
V
V
V
mA
mW
°C/W
°C
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 0609 (week 9, 2006) and newer are built with Green Molding Compound. Product
manufactured prior to Date Code 0609 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
DS30173 Rev. 7 - 2
1 of 4
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MMST5551
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