DSS4540X Datasheet, PDF (1/4 Pages) Diodes Incorporated – LOW VCE(SAT) NPN SURFACE MOUNT TRANSISTOR

Features
• Complementary PNP Type Available (DSS5540X)
• Ultra Low Collector-Emitter Saturation Voltage
• Ideally Suited for Automated Assembly Processes
• Ideal for Medium Power Switching or Amplification Applications
• Lead Free By Design/RoHS Compliant (Note 1)
• "Green" Device (Note 2)
DSS4540X
LOW V_CE(SAT) NPN SURFACE MOUNT TRANSISTOR
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Mechanical Data
• Case: SOT89-3L
• Case Material: Molded Plastic, "Green” Molding Compound.
UL Flammability Classification Rating 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020D
• Terminals: Finish — Matte Tin annealed over Copper leadframe
(Lead Free Plating). Solderable per MIL-STD-202, Method 208
• Marking Information: See Page 4
• Ordering Information: See Page 4
• Weight: 0.072 grams (approximate)
Top View
COLLECTOR
2,4
1
BASE
3
EM ITTER
Device Schematic
3E
C4
2C
1B
Pin Out Configuration
Maximum Ratings @T_A = 25°C unless otherwise specified
Characteristic
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Continuous Collector Current
Repetitive Collector Current (Note 3)
Peak Pulse Collector Current
Continuous Base Current
Peak Pulse Base Current
Symbol
V_CBO
V_CEO
V_EBO
I_C
I_CRM
I_CM
I_B
I_BM
Value
40
40
6
4
5
10
1
2
Unit
V
V
V
A
A
A
A
A
Thermal Characteristics
Characteristic
Power Dissipation (Note 4) @ T_A = 25°C
Thermal Resistance, Junction to Ambient Air (Note 4) @ T_A = 25°C
Power Dissipation (Note 5) @ T_A = 25°C
Thermal Resistance, Junction to Ambient Air (Note 5) @ T_A = 25°C
Operating and Storage Temperature Range
Symbol
P_D
R_θJA
P_D
R_θJA
T_J, T_STG
Value
0.9
139
2
62.5
-55 to +150
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. Operated under pulsed conditions: pulse width ≤ 10ms; duty cycle ≤ 0.2.
4. Device mounted on FR-4 PCB with minimum recommended pad layout.
5. Device mounted on FR-4 PCB with 1 inch² copper pad layout.
Unit
W
°C/W
W
°C/W
°C
DSS4540X
Document number: DS31592 Rev. 2 - 2
1 of 4
www.diodes.com
December 2008
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