MCC
Micro Commercial Components
TM
omponents
20736 Marilla Street Chatsworth
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$
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MMBD4448
Features
Halogen free available upon request by adding suffix "-HF"
Fast Switching Speed
Surface Mount Package Ideally Suited for Automatic Insertion
For General Purpose Switching Applications
Surface Mount
Switching Diode
350mW
Lead Free Finish/Rohs Compliant ("P"Suffix designates
RoHS Compliant. See ordering information)
Mechanical
Data
Epoxy meets UL 94 V-0 flammability rating
Moisture Sensitivity Level 1
Polarity: See Diagram
Marking: KA3
A
D
SOT-23
C
B
Maximum Ratings @ 25 C Unless Otherwise Specified
Characteristic
Non-Repetitive Peak Reverse Volt.
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
RMS Reverse Voltage
Forward Continuous Current(Note1)
Average Rectified Output Current
Non-Repetitive Peak @ t<=1.0s
Forward Surge Current @ t=1.0us
Power Dissipation(Note 1)
Thermal Resistance(Note 1)
Operation/Storage Temp. Range
Pd
R
Tj, T
STG
Symbol
V
RM
V
RRM
V
RWM
V
R
V
R(RMS)
I
FM
Io
I
FSM
53
500
250
2
4
350
357
-55 to +150
V
mA
mA
A
A
mW
K/W
o
o
Value
100
75
Unit
V
V
F
E
G
H
J
DIMENSIONS
INCHES
MIN
.110
.083
.047
.035
.070
.018
.0005
.035
.003
.015
MM
MIN
2.80
2.10
1.20
.89
1.78
.45
.013
.89
.085
.37
C
Electrical Characteristics @ 25
o
C Unless Otherwise Specified
Charateristic
Maximum Forward
Voltage Drop
Symbol
V
F M
Min
0.62
-----
Max
0.72
0.855
1
1.25
2.5
Maximum Peak
Reverse Current
Junction Capacitance
Reverse Recovery Time
Cj
t
rr
-----
-----
I
RM
-----
50
30
25
4
4
uA
uA
uA
nA
pF
ns
V
Unit
Test Cond.
I
F
=5.0mA
I
F
=10mA
I
F
=100mA
I
F
=150mA
V
R
=75V
V
R
=75V Tj=150 C
V
R
=25V Tj=150 C
V
R
=20V
V
R
=0V, f=1.0MHz
o
o
DIM
A
B
C
D
E
F
G
H
J
K
MAX
.120
.104
.055
.041
.081
.024
.0039
.044
.007
.020
MAX
3.04
2.64
1.40
1.03
2.05
.60
.100
1.12
.180
.51
NOTE
Suggested Solder
Pad Layout
.031
.800
.035
.900
.079
2.000
inches
mm
.037
.950
.037
.950
Note
: 1. Valid provided that terminals are kept at ambient temperature
2. Trr Test Condition: IF=IR=10mA, Irr=0.1*IR, R=100 OHM
Revision:
B
www.mccsemi.com
1 of 4
2013/01/01
MMBD4448
Figure 1
Typical Forward Characteristics
200
100
60
40
350
20
MilliAmps 10
6
4
2
25°C
1
.6
.4
.2
.1
.4
.6
.8
Volts
Instantaneous Forward Current - Amperes
versus
Instantaneous Forward Voltage - Volts
1.0
1.2
1.4
0
70
280
420
MCC
Micro Commercial Components
Figure 2
Forward Derating Curve
TM
210
MilliWatts
140
Single Phase, Half Wave
60Hz Resistive or Inductive Load
0
50
75
100
°C
Admissable Power Dissipation - MilliWatts
versus
Ambient Temperature -
°C
125
150
175
Figure 3
Junction Capacitance
10
6
4
2
pF
1
.6
.4
.2
.1
.1
.2
.4
1
Volts
2
4
10
20
40
100
200
400
1000
T
J
=25°C
Junction Capacitance - pF
versus
Reverse Voltage - Volts
www.mccsemi.com
Revision:
B
2 of 4
2013/01/01
MMBD4448
Figure 4
Typical Reverse Characteristics
1000
600
400
200
100
60
40
20
10
NanoAmps
6
4
2
1
.6
.4
.2
.1
20
40
60
T
J
Instantaneous Reverse Leakage Current - NanoAmperes
versus
Junction Temperature -
°C
80
100
120
140
T
A
=25°C
Amps
2.4
2.0
1.6
1.2
0.8
0.4
0
1
4
6
MCC
Micro Commercial Components
Figure 5
Peak Forward Surge Current
TM
2
8 10
Cycles
20
40
60 80 100
Peak Forward Surge Current - Amperes
versus
Number Of Cycles At 60Hz - Cycles
www.mccsemi.com
Revision:
B
3 of 4
2013/01/01
MCC
Micro Commercial Components
TM
Ordering Information :
Device
Part Number-TP
Note : Adding "-HF" suffix for halogen free, eg. Part Number-TP-HF
Packing
Tape&Reel:
3Kpcs/Reel
***IMPORTANT NOTICE***
Micro Commercial Components Corp.
reserves the right to make changes without further notice to any product herein to
make corrections, modifications , enhancements , improvements , or other changes .
Micro Commercial Components
Corp .
does not assume any liability arising out of the application or use of any product described herein; neither does it
convey any license under its patent rights ,nor the rights of others . The user of products in such applications shall assume all
risks of such use and will agree to hold
Micro Commercial Components Corp .
and all the companies whose products are
represented on our website, harmless against all damages.
***LIFE SUPPORT***
MCC's products are not authorized for use as critical components in life support devices or systems without the express written
approval of Micro Commercial Components Corporation.
***CUSTOMER AWARENESS***
Counterfeiting of semiconductor parts is a growing problem in the industry. Micro Commercial Components (MCC) is taking
strong measures to protect ourselves and our customers from the proliferation of counterfeit parts. MCC strongly encourages
customers to purchase MCC parts either directly from MCC or from Authorized MCC Distributors who are listed by country on
our web page cited
below.
Products customers buy either from MCC directly or from Authorized MCC Distributors are genuine
parts, have full traceability, meet MCC's quality standards for handling and storage.
MCC will not provide any warranty
coverage or other assistance for parts bought from Unauthorized Sources.
MCC is committed to combat this global
problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized
distributors.
www.mccsemi.com
Revision:
B
4 of 4
2013/01/01
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