DS30263 Rev. 5 - 2
1 of 2
MMBD4448HT /HTA /HTC /HTS
MMBD4448HT /HTA /HTC /HTS
SURFACE MOUNT FAST SWITCHING DIODE
Case: SOT-523, Molded Plastic
Case Material - UL Flammability Rating
Classification 94V-0
Moisture sensitivity: Level 1 per J-STD-020A
Terminals: Solderable per MIL-STD-202,
Method 208
Polarity: See Diagrams Below
Marking: See Diagrams Below & Page 2
Mechanical Data
A
M
J
L
D
B C
H
K
G
TOP VIEW
C
E
B
N
Features
Maximum Ratings
@ T
A
= 25C unless otherwise specified
Notes:
1. Device mounted on FR-4 PC board with recommended pad layout, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
2. Short duration test pulse used to minimize self-heating effect.
Electrical Characteristics
@ T
A
= 25C unless otherwise specified
T
C
U
D
O
R
P
W
E
N
MMBD4448HTS Marking: AB
MMBD4448HTC Marking: A7
MMBD4448HTA Marking: A6
MMBD4448HT Marking: A3
Ultra-Small Surface Mount Package
Fast Switching Speed
For General Purpose Switching Applications
High Conductance
Characteristic
Symbol
Value
Unit
Non-Repetitive Peak Reverse Voltage
V
RM
100
V
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
V
RRM
V
RWM
V
R
80
V
RMS Reverse Voltage
V
R(RMS)
57
V
Forward Continuous Current (Note 1)
I
FM
500
mA
Average Rectified Output Current (Note 1)
I
O
250
mA
Non-Repetitive Peak Forward Surge Current @ t = 1.0ms
@ t = 1.0s
I
FSM
4.0
2.0
A
Power Dissipation (Note 1)
P
d
150
mW
Thermal Resistance Junction to Ambient (Note 1)
R
q
JA
833
C/W
Operating and Storage Temperature Range
T
j
, T
STG
-65 to +150
C
Characteristic
Symbol
Min
Max
Unit
Test Condition
Reverse Breakdown Voltage (Note 2)
V
(BR)R
80
V
I
R
= 2.5mA
Forward Voltage (Note 2)
V
F
0.62
0.72
0.855
1.0
1.25
V
I
F
= 5.0mA
I
F
= 10mA
I
F
= 100mA
I
F
= 150mA
Leakage Current (Note 2)
I
R
100
50
30
25
nA
m
A
m
A
nA
V
R
= 70V
V
R
= 75V, T
j
= 150C
V
R
= 25V, T
j
= 150C
V
R
= 20V
Total Capacitance
C
T
3.5
pF
V
R
= 6V, f = 1.0MHz
Reverse Recovery Time
t
rr
4.0
ns
V
R
= 6V, I
F
= 5mA
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
a
0
8
All Dimensions in mm
DS30263 Rev. 5 - 2
2 of 2
MMBD4448HT /HTA /HTC /HTS
Ordering Information
(Note 3)
Device
Packaging
Shipping
MMBD4448HT-7
SOT-523
3000/Tape & Reel
MMBD4448HTA-7
SOT-523
3000/Tape & Reel
MMBD4448HTC-7
SOT-523
3000/Tape & Reel
MMBD4448HTS-7
SOT-523
3000/Tape & Reel
Notes:
3. For Packaging Details: go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
T
C
U
D
O
R
P
W
E
N
1
10
100
1000
10,000
0
100
200
I
,
L
E
A
K
A
G
E
C
U
R
R
E
N
T
(
n
A
)
R
T , JUNCTION TEMPERATURE (C)
j
Fig. 2 Leakage Current vs Junction Temperature
V = 20V
R
10
1.0
100
1000
0.1
0.01
0
1
2
I
,
I
N
S
T
A
N
T
A
N
E
O
U
S
F
O
R
W
A
R
D
C
U
R
R
E
N
T
(
m
A
)
F
V , INSTANTANEOUS FORWARD VOLTAGE (V)
F
Fig. 1 Forward Characteristics
Marking Information
XXYM
XX = Product Type Marking Code (See Page 1 Diagrams)
YM = Date Code Marking
Y = Year (ex: N = 2002)
M = Month (ex: 9 = September)
Date Code Key
Month
Jan
Feb
March
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Code
1
2
3
4
5
6
7
8
9
O
N
D
Year
2001
2002
2003
2004
2005
2006
2007
2008
2009
Code
M
N
P
R
S
T
U
V
W
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