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)

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

Characteristic

Symbol

Value

Unit

Power Dissipation

200

mW

Power Deration above 25

°C

1.6

mW /

°C

Output Current

100

mA

Thermal Characteristics

Characteristic

Symbol

Value

Unit

Junction Operation and Storage Temperature Range

-55 to +150

°C

Thermal Resistance, junction to ambient (packaged device)

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.

DS30767 Rev. 6 - 2

1 of 6

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DDC144TU

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