Document
MMBD4448V
SURFACE MOUNT FAST SWITCHING DIODE
Features
• Ultra-Small Surface Mount Package • Fast Switching Speed • For General Purpose Switching Applications • Dual Isolated Device with Opposing Polarity • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) • Halogen- and Antimony-Free. “Green” Device (Note 3) • For automotive applications requiring specific change
control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/
Mechanical Data
• Case: SOT-563 • Case Material: Molded Plastic; UL Flammability Classification
Rating 94V-0 • Moisture Sensitivity: Level 1 per J-STD-020 • Terminals: Matte Tin Finish Annealed over Copper Lead-Frame;
Solderable per MIL-STD-202, Method 208 e3 • Weight: 0.003 grams (Approximate)
SOT-563
C1 NC A2
Top View
Bottom View
A1 NC C2
Top View Internal Schematic
Ordering Information (Note 4)
Notes:
Part Number MMBD4448V-7
Compliance Standard
Case SOT-563
Packaging 3,000/Tape & Reel
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds. 4. For packaging details, go to our website at https://www.diodes.com/design/support/packaging/diodes-packaging/..
Marking Information (Note 5)
SOT-563
KAL YM
KAL = Product Type Marking Code YM = Date Code Marking Y = Year (ex: H = 2020) M = Month (ex: 9 = September)
Date Code Key
Year
2004
…..
2020
2021
2022
2023
Code
R
…..
H
I
J
K
Month Code
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
1
2
3
4
5
6
7
8
Notes: 5. Package is non-polarized. Parts may be on reel in orientation illustrated, 180° rotated, or mixed.
2024 L
Sep 9
2025 M
Oct
Nov
O
N
2026 N
Dec D
MMBD4448V
Document number: DS30451 Rev. 9 - 2
1 of 5 www.diodes.com
October 2020
© Diodes Incorporated
MMBD4448V
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
80
V
VR
RMS Reverse Voltage
VR(RMS)
57
V
Forward Continuous Current (Note 6)
IFM
500
mA
Average Rectified Output Current (Note 6)
IO
250
mA
Non-Repetitive Peak Forward Surge Current
@ t = 1.0µs @ t = 1.0s
IFSM
4.0 1.0
A
Thermal Characteristics
Characteristic Power Dissipation (Note 6) Thermal Resistance Junction to Ambient (Note 6) Operating and Storage Temperature Range
Symbol PD RθJA
TJ, TSTG
Value 150 833
-55 to +150
Unit mW °C/W °C
Electrical Characteristics (@ TA = +25°C unless otherwise specified.)
Characteristic Reverse Breakdown Voltage (Note 7)
Forward Voltage
Symbol V(BR)R
VF
Min 80
0.62
Leakage Current (Note 7)
IR
Total Capacitance Reverse Recovery Time
CT
trr
Notes:
6. Device mounted on FR-4 PCB, 1-inch x 0.85 inch x 0.062 inch pad layout. 7. Short duration pulse test used to minimize self-heating effect.
Max
0.72 0.855
1.0 1.25
100 50 30 25
3.5
4.0
Unit V
V
nA µA µA nA pF ns
Test Condition
IR = 2.5µA IF = 5.0mA IF = 10mA IF = 100mA IF = 150mA VR = 70V VR = 75V, TJ = +150°C VR = 25V, TJ = +150°C VR = 20V VR = 6V, f = 1.0MHz IF = IR = 10mA, Irr = 0.1 x IR, RL = 100Ω
MMBD4448V
Document number: DS30451 Rev. 9 - 2
2 of 5 www.diodes.com
October 2020
© Diodes Incorporated
MMBD4448V
MMBD4448V
Document number: DS30451 Rev. 9 - 2
3 of 5 www.diodes.com
October 2020
© Diodes Incorporated
Package Outline Dimensions
Please see http://www.diodes.com/package-outlines.html for the latest version.
b
a
a
E E1
L R.01
e
c
e1
D
a
A a
MMBD4448V
SOT563
Dim Min Max Typ
A 0.55 0.60 0.60
b 0.15 0.30 0.20
c 0.10 0.18 0.11
D 1.50 1.70 1.60
E 1.55 1.70 1.60
E1 1.10 1.25 1.20
e --
-- 0.50
e1 0.90 1.10 1.00
L 0.10 0.30 0.20
a 8° 9° 7°
All Dimensions in mm
Suggested Pad Layout
Please see http://www.diodes.com/package-outlines.html for the latest version.
C Y Y1 G
X C1
X1
Dimensions C C1 G X X1 Y Y1
Value (in mm) 0.500 1.270 0.600 0.300 1.300 0.670 1.940
MMBD4448V
Document number: DS30451 Rev. 9 - 2
4 of 5 www.diodes.com
October 2020
© Diodes Incorporated
MMBD4448V
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 th.