Diodes MMBD4448HT, MMBD4448HTA, MMBD4448HTC, MMBD4448HTS User Manual
Y
Features
• Ultra-Small Surface Mount Package
• Fast Switching Speed
• For General Purpose Switching Applications
• High Conductance
• Lead Free/RoHS Compliant (Note 1)
• "Green" Device (Notes 2 and 3)
TOP VIEW
MMBD4448HT Marking: A3 MMBD4448HTA Marking: A6
MMBD4448HT /HTA /HTC /HTS
SURFACE MOUNT FAST SWITCHING DIODE
Mechanical Data
• Case: SOT-523
• Case Material: Molded Plastic, “Green” Molding Compound. UL
Flammability Classification Rating 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020
• Terminals: Matte Tin Finish annealed over Alloy 42 leadframe
(Lead Free Plating). Solderable per MIL-STD-202, Method 208
• Polarity: See Diagrams Below
• Weight: 0.002 grams (approximate)
SOT-523
MMBD4448HTC Marking: A7 MMBD4448HTS Marking: AB
Ordering Information (Note 4)
Part Number Case Packaging
MMBD4448HT-7-F SOT-523 3000/Tape & Reel
MMBD4448HTA-7-F SOT-523 3000/Tape & Reel
MMBD4448HTC-7-F SOT-523 3000/Tape & Reel
MMBD4448HTS-7-F SOT-523 3000/Tape & Reel
Notes: 1. No purposefully added lead.
2. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com.
3. 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.
4. For packaging details, go to our website at http://www.diodes.com.
Marking Information
Date Code Key
Year 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Code M N P R S T U V W X Y Z A B C
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Code 1 2 3 4 5 6 7 8 9 O N D
xx
M
MMBD4448HT /HTA /HTC /HTS
Document number: DS30263 Rev. 13 - 2
xx = Product Type Marking Code (See Page 1 Diagrams)
YM = Date Code Marking
Y = Year (ex: N = 2002)
M = Month (ex: 9 = September)
1 of 4
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February 2011
© Diodes Incorporated
)
θ
(BR)
r
P
P
O
R
PATIO
N
TANT
O
US F
O
R
R
C
U
R
RENT
Maximum Ratings @T
= 25°C unless otherwise specified
A
Characteristic Symbol Value Unit
Non-Repetitive Peak Reverse Voltage
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
RMS Reverse Voltage
Forward Continuous Current (Note 5)
Average Rectified Output Current (Note 5)
Non-Repetitive Peak Forward Surge Current @ t = 1.0μs
@ t = 1.0s
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 5)
Thermal Resistance Junction to Ambient (Note 5)
Operating and Storage Temperature Range
V
T
V
RM
V
RRM
V
RWM
V
R
R(RMS
I
FM
I
O
I
FSM
P
D
R
JA
, T
J
STG
MMBD4448HT /HTA /HTC /HTS
100 V
80 V
57 V
500 mA
250 mA
4.0
1.0
A
150 mW
833
-65 to +150
°C/W
°C
Electrical Characteristics @T
= 25°C unless otherwise specified
A
Characteristic Symbol Min Max Unit Test Condition
Reverse Breakdown Voltage (Note 6)
Forward Voltage
Leakage Current (Note 6)
Total Capacitance
Reverse Recovery Time
Notes: 5. Device mounted on FR-4 PC board with recommended pad layout, which can be found on our website at http://www.diodes.com.
6. Short duration pulse test used to minimize self-heating effect.
V
V
F
I
⎯
R
C
⎯
T
t
⎯
r
80
R
0.62
⎯
⎯
⎯
⎯
0.72
0.855
1.0
1.25
100
50
30
25
3.5 pF
4.0 ns
V
IR = 2.5μA
= 5.0mA
I
F
= 10mA
I
F
V
I
= 100mA
F
= 150mA
I
F
V
nA
μA
μA
nA
= 70V
R
V
= 75V, TJ = 150°C
R
= 25V, TJ = 150°C
V
R
V
= 20V
R
VR = 6V, f = 1.0MHz
VR = 6V, IF = 5mA
250
1,000
(mA)
200
D
WA
100
10
(mW)
DISSI
150
100
WE
,
D
50
ANE
1
0
0
T , AMBIENT TEMPERATURE ( C)
A
120
16040 80
°
Fig. 1 Power Derating Curve, Total Package (Note 5)
200
F
I , INS
0.1
0
V , INSTANTANEOUS FORWARD VOL TAGE (V)
F
Fig. 2 Typical Forward Characteristics, Per Element
1.61.20.4 0.8
MMBD4448HT /HTA /HTC /HTS
Document number: DS30263 Rev. 13 - 2
2 of 4
www.diodes.com
February 2011
© Diodes Incorporated
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