Diodes MMDT3946 User Manual
Mmdt3946, Features, Mechanical data
MMDT3946
Document number: DS30123 Rev. 11 - 2
1 of 6
October 2008
© Diodes Incorporated
MMDT3946
COMPLEMENTARY NPN / PNP SMALL SIGNAL SURFACE MOUNT TRANSISTOR
Features
•
Complementary Pair
One 3904-Type NPN
One
3906-Type
PNP
•
Epitaxial Planar Die Construction
•
Ideal for Low Power Amplification and Switching
•
Ultra-Small Surface Mount Package
•
Lead Free/RoHS Compliant (Note 3)
•
"Green" Device (Note 4 and 5)
Mechanical Data
•
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 5
•
Ordering Information: See Page 5
•
Weight: 0.006 grams (approximate)
C
2
B
1
E
1
E
2
B
2
C
1
E1, B1, C1 = PNP3906 Section
E2, B2, C2 = NPN3904 Section
Top View
Device Schematic
Maximum Ratings, NPN 3904 Section
@T
A
= 25°C unless otherwise specified
Characteristic
Symbol
NPN 3904 Section
Unit
Collector-Base Voltage
V
CBO
60
V
Collector-Emitter Voltage
V
CEO
40
V
Emitter-Base Voltage
V
EBO
6.0
V
Collector Current - Continuous (Note 1)
I
C
200
mA
Maximum Ratings, PNP 3906 Section
@T
A
= 25°C unless otherwise specified
Characteristic
Symbol
PNP 3906 Section
Unit
Collector-Base Voltage
V
CBO
-40
V
Collector-Emitter Voltage
V
CEO
-40
V
Emitter-Base Voltage
V
EBO
-5.0
V
Collector Current - Continuous (Note 1)
I
C
-200
mA
Thermal Characteristics
, Total Device
Power Dissipation (Note 1, 2)
P
D
200
mW
Thermal Resistance, Junction to Ambient (Note 1)
R
θJA
625
°C/W
Operating and Storage Temperature Range
T
J
, T
STG
-55 to +150
°C
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 w2. Maximum combined dissipation.
3. No purposefully added lead.
4. Diodes Inc.'s "Green" policy can be found on our w
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.