MMDT4146
COMPLEMENTARY NPN / PNP SMALL SIGNAL SURFACE MOUNT TRANSISTOR
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Mechanical Data
Features
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Complementary Pair
One 4124-Type NPN
One 4126-Type PNP
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Case: SOT-363
Case Material: Molded Plastic, “Green” Molding Compound,
Note 5. UL Flammability Classification Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020D
Terminals: Matte Tin Finish annealed over Alloy 42 leadframe
(Lead Free Plating) Solderable per MIL-STD-202, Method 208
Terminal Connections: See Diagram
Marking Information: See Page 4
Ordering Information: See Page 4
Weight: 0.006 grams (approximate)
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Epitaxial Planar Die Construction
Ideal for Medium Power Amplification and Switching
Ultra-Small Surface Mount Package
Lead Free/RoHS Compliant (Note 3)
"Green" Device (Note 4 and 5)
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C2
B1
E1
E1, B1, C1 = PNP4126 Section
E2, B2, C2 = NPN4124 Section
E2
B2
C1
Top View
Device Schematic
Maximum Ratings, NPN 4124 Section @TA = 25°C unless otherwise specified
Characteristic
Symbol
VCBO
VCEO
VEBO
IC
Value
30
Unit
V
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
25
V
5.0
V
Collector Current – Continuous
(Note 1)
200
mA
Maximum Ratings, PNP 4126 Section @TA = 25°C unless otherwise specified
Characteristic
Symbol
VCBO
VCEO
VEBO
IC
Value
-25
Unit
V
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
-25
V
-4
V
Collector Current - Continuous
(Note 1)
-200
mA
Thermal Characteristics – Total Device
Characteristic
Symbol
PD
Value
200
Unit
mW
Power Dissipation
(Note 1, 2)
(Note 1)
Thermal Resistance, Junction to Ambient
625
°C/W
Rθ
JA
Notes:
1. 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.
2. Maximum combined dissipation.
3. No purposefully added lead.
4. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
5. Product manufactured with Date Code UO (week 40, 2007) and newer are built with Green Molding Compound. Product manufactured prior to Date
Code UO are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
1 of 5
www.diodes.com
January 2009
© Diodes Incorporated
MMDT4146
Document number: DS30162 Rev. 11 - 2