MMBD4448HT(A,C,S) Datasheet by Diodes Incorporated

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MMBD4448HT /HTA /HTC /HTS
Document number: DS30263 Rev. 13 - 2
1 of 4
www.diodes.com February 2011
© Diodes Incorporated
MMBD4448HT /HTA /HTC /HTS
SURFACE MOUNT FAST SWITCHING DIODE
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)
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)
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
MMBD4448HT Marking: A3 MMBD4448HTA Marking: A6
SOT-523
MMBD4448HTC Marking: A7 MMBD4448HTS Marking: AB
TOP VIEW
xx = Product Type Marking Code (See Page 1 Diagrams)
YM = Date Code Marking
Y = Year (ex: N = 2002)
M = Month (ex: 9 = September)
xx
Y
M
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MMBD4448HT /HTA /HTC /HTS
Document number: DS30263 Rev. 13 - 2
2 of 4
www.diodes.com February 2011
© Diodes Incorporated
MMBD4448HT /HTA /HTC /HTS
Maximum Ratings @TA = 25°C unless otherwise specified
Characteristic Symbol Value Unit
Non-Repetitive Peak Reverse Voltage VRM 100 V
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR
80 V
RMS Reverse Voltage VR
(
RMS
)
57 V
Forward Continuous Current (Note 5) IFM 500 mA
Average Rectified Output Current (Note 5) IO 250 mA
Non-Repetitive Peak Forward Surge Current @ t = 1.0
μ
s
@ t = 1.0s IFSM 4.0
1.0 A
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 5) PD 150 mW
Thermal Resistance Junction to Ambient (Note 5) R
θ
JA 833 °C/W
Operating and Storage Temperature Range TJ, TSTG -65 to +150 °C
Electrical Characteristics @TA = 25°C unless otherwise specified
Characteristic Symbol Min Max Unit Test Condition
Reverse Breakdown Voltage (Note 6) V
(
BR
)
R 80 V IR = 2.5μA
Forward Voltage VF
0.62
0.72
0.855
1.0
1.25
V
IF = 5.0mA
IF = 10mA
IF = 100mA
IF = 150mA
Leakage Current (Note 6) IR
100
50
30
25
nA
μA
μA
nA
VR = 70V
VR = 75V, TJ = 150°C
VR = 25V, TJ = 150°C
VR = 20V
Total Capacitance CT 3.5 pF
VR = 6V, f = 1.0MHz
Reverse Recovery Time tr
r
4.0 ns
VR = 6V, IF = 5mA
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.
0
50
100
150
200
250
0120 16040 80 200
P
,
P
O
WE
R
DISSI
P
A
T
I
O
N
(mW)
D
T , AMBIENT TEMPERATURE ( C)
Fig. 1 Power Derating Curve, Total Package (Note 5)
A
°
10
100
1,000
1
0.1 01.61.20.4 0.8
I , INS
T
AN
T
ANE
O
U
S
F
O
R
WA
R
D
C
U
R
R
EN
T
(mA)
F
V , INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics, Per Element
F
K : mac OUS R VER CURRENT NSTANT F C ‘TOT CAPAC‘TANC J ’9 MMBD4448HT /HTA /HTC /HTS Document number 0530263 Rev 1372 3 a! 4 www.diodes.com
MMBD4448HT /HTA /HTC /HTS
Document number: DS30263 Rev. 13 - 2
3 of 4
www.diodes.com February 2011
© Diodes Incorporated
MMBD4448HT /HTA /HTC /HTS
0.1
1
10
100
1,000
10,000
020 40 60 80 100
V , REVERSE VOLTAGE (V)
Fig. 3 Typical Reverse Characteristics, Per Element
R
I, INS
T
AN
T
ANE
O
U
S
R
EVE
R
SE
C
U
R
R
EN
T
(nA)
R
0
0.5
1.0
2.5
2.0
1.5
3.0
01020 40
30
C
,
T
O
T
AL
C
A
P
A
C
I
T
A
N
C
E (p
F
)
T
V , DC REVERSE VOLTAGE (V)
Fig. 4 Total Capacitance vs. Reverse Voltage, Per Element
R
f = 1MHz
Package Outline Dimensions
Suggested Pad Layout
SOT-523
Dim Min Max Typ
A 0.15 0.30 0.22
B 0.75 0.85 0.80
C 1.45 1.75 1.60
D 0.50
G 0.90 1.10 1.00
H 1.50 1.70 1.60
J 0.00 0.10 0.05
K 0.60 0.80 0.75
L 0.10 0.30 0.22
M 0.10 0.20 0.12
N 0.45 0.65 0.50
α 0° 8°
All Dimensions in mm
Dimensions Value (in mm)
Z 1.8
X 0.4
Y 0.51
C 1.3
E 0.7
XE
Y
C
Z
A
M
JL
D
BC
H
K
G
N
MMBD4448HT /HTA /HTC /HTS 4 0' 4 Document number D530263 Rev 1372 www.diodes.com
MMBD4448HT /HTA /HTC /HTS
Document number: DS30263 Rev. 13 - 2
4 of 4
www.diodes.com February 2011
© Diodes Incorporated
MMBD4448HT /HTA /HTC /HTS
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2011, Diodes Incorporated
www.diodes.com

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