Diodes DDC144TU - Manual

DS30767 Rev. 7 - 2 1 of 6
www.diodes.com
DDC144TU
© Diodes Incorporated
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)
NEW PROD
UC
T
Fig. 1: SOT-363
R1 47k
EQ1
EQ2 BQ2
CQ2 BQ1
CQ1
Q1
DDC144T_DIE
Q2
R2 47k
DDC144T_DIE
Fig. 2: Schematic and Pin Configuration
Sub-Component P/N Reference Device Type R1 (NOM) R2 (NOM) Figure
DDTC144T_DIE Q1 NPN 47K Ω ⎯ 2
DDTC144T_DIE Q2 NPN ⎯
47K
Ω 2
Maximum Ratings: Total Device
@T
A
= 25°C unless otherwise specified
Characteristic Symbol Value Unit
Power Dissipation P
d
200 mW
Power Deration above 25
°C
P
der
1.6 mW /
°C
Output Current I
out
100 mA
Thermal Characteristics
Characteristic Symbol Value Unit
Junction Operation and Storage Temperature Range T
J
, T
STG
-55 to +150 °C
Thermal Resistance, junction to ambient (packaged device)
(Ref: equivalent to only one heated junction) @ T
A
= 25
°C R θJA 625 °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.
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