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DDC144TU Datasheet PDF : 6 Pages
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DDC144TU
DUAL NPN TRANSISTORS WITH 47K OHM BASE RESISTOR
General Description
• DDC144TU is best suited for logic switching applications
using control circuits like micro-controllers, comparators,
etc. It features two discrete NPN transistors which can
support maximum continuous current of 100 mA. NPN
transistors can be used as a control and also these can
be biased using higher supply voltages due to the built in
current limiting base resistor of 47 K Ohm. The
component devices can be used as a part of a circuit or
as a stand alone discrete device.
Features
• Built in Base Resistors
• Epitaxial Planar Die Construction
• Lead Free By Design/RoHS Compliant (Note 1)
• "Green" Device (Note 2)
Mechanical Data
• Case: SOT-363
• Case Material: Molded Plastic. "Green Molding"
Compound. UL Flammability Classification Rating 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020C
• Terminal Connections: See Fig. 2
• Terminals: Finish - Matte Tin annealed over Alloy 42
leadframe. Solderable per MIL-STD-202, Method 208
• Marking & Type Code Information: See Page 5
• Ordering Information: See Page 5
• Weight: 0.015 grams (approximate)
Sub-Component P/N
DDTC144T_DIE
DDTC144T_DIE
Reference
Q1
Q2
CQ1
Fig. 1: SOT-363
BQ2
EQ2
R2 47k
DDC144T_DIE
Q2
DDC144T_DIE
Q1
R1 47k
EQ1
BQ1
CQ2
Fig. 2: Schematic and Pin Configuration
Device Type
NPN
NPN
R1 (NOM)
47KΩ
⎯
R2 (NOM)
⎯
47KΩ
Figure
2
2
Maximum Ratings: Total Device @TA = 25°C unless otherwise specified
Characteristic
Power Dissipation
Power Deration above 25°C
Output Current
Symbol
Pd
Pder
Iout
Value
200
1.6
100
Unit
mW
mW / °C
mA
Thermal Characteristics
Characteristic
Junction Operation and Storage Temperature Range
Thermal Resistance, junction to ambient (packaged device)
(Ref: equivalent to only one heated junction) @ TA = 25°C
Symbol
TJ, TSTG
RθJA
Value
-55 to +150
625
Unit
°C
°C/W
Notes:
1. No purposefully added lead.
2. Diodes Inc.'s "Green" policy can be found on our website at http:/www.diodes.com/products/lead_free/index.php.
3. Device mounted on FR-4 PCB, 1" x 0.85" x 0.062"; pad layout as shown on Page 5 or see Diodes Inc. suggested pad layout document AP02001, which
can be found on our website at http:/www.diodes.com/datasheets/ap02001.pdf.
DS30767 Rev. 6 - 2
1 of 6
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DDC144TU
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