DMMT5551_1 Datasheet, PDF (1/4 Pages) Diodes Incorporated – MATCHED NPN SMALL SIGNAL SURFACE MOUNT TRANSISTOR

SPICE MODEL: DMMT5551
DMMT5551/DMMT5551S
Lead-free Green
MATCHED NPN SMALL SIGNAL SURFACE MOUNT
TRANSISTOR
Features
• Epitaxial Planar Die Construction
• Complementary PNP Type Available (DMMT5401)
• Ideal for Low Power Amplification and Switching
• Intrinsically Matched NPN Pair (Note 1)
• 2% Matched Tolerance, h_FE, V_CE(SAT), V_BE(SAT)
• Lead Free/RoHS Compliant (Note 4)
• "Green" Device (Note 5 and 6)
Mechanical Data
• Case: SOT-26
• Case Material: Molded Plastic, "Green" Molding
Compound, Note 7. 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
Copper leadframe).
• Marking (See Page 2): K4R & K4T
• Ordering & Date Code Information: See Page 2
• Weight: 0.006 grams (approximate)
A
BC
H
K
M
J
DF
L
E₁
E₂
C₂
C₁
E₁
C₂
SOT-26
Dim Min Max Typ
A 0.35 0.50 0.38
B 1.50 1.70 1.60
C 2.70 3.00 2.80
D   0.95
F   0.55
H 2.90 3.10 3.00
J 0.013 0.10 0.05
K 1.00 1.30 1.10
L 0.35 0.55 0.40
M 0.10 0.20 0.15
α 0° 8° 
All Dimensions in mm
C₁
B₁
B₂
DMMT5551
(K4R Marking Code)
B₁
E₂
B₂
DMMT5551S
(K4T Marking Code)
Maximum Ratings ^{@ T}A ^{= 25°C unless otherwise specified}
Characteristic
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Collector Current - Continuous (Note 2)
Power Dissipation (Note 2, 3)
Thermal Resistance, Junction to Ambient (Note 2)
Operating and Storage and Temperature Range
Symbol
VCBO
V_CEO
VEBO
I_C
P_d
R_θJA
T_j, T_STG
Value
180
160
6.0
200
300
417
-55 to +150
Unit
V
V
V
mA
mW
°C/W
°C
Notes:
1. Built with adjacent die from a single wafer.
2. 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.
3. Maximum combined dissipation.
4. No purposefully added lead.
5. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php..
6. 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.
DS30436 Rev. 7 - 2
1 of 4
www.diodes.com
DMMT5551/DMMT5551S
© Diodes Incorporated