SEMICONDUCTOR
TECHNICAL DATA
SWITCHING TYPE POWER SUPPLY APPLICATIONS.
SMFB23
SCHOTTKY BARRIER TYPE DIODE
FEATURES
Low Profile Surface Mount Package.
Low Forward Voltage.
A
B
Low Power Loss, High Efficiency.
APPLICATION
Switching Power Supply.
Reversed Battery Connection Protection.
DC/DC Converter.
Cellular Phones.
G
H
C
D
DIM
A
B
C
D
E
F
G
H
MILLIMETERS
_
2.6 + 0.05
_
3.5 + 0.1
_
0.9 + 0.05
_
1.6 + 0.05
_
0.65 + 0.05
_ 0.05
0.11 +
0 ~ 0.1
_
0.98 + 0.05
MAXIMUM RATING (Ta=25
CHARACTERISTIC
)
SYMBOL
V
RRM
I
O
I
FSM
T
j
T
stg
RATING
30
2
33
-40 125
-40 150
UNIT
V
A
A
SMF
Maximum Repetitive Peak Reverse Voltage
Average Output Rectitifed Current
Peak One Cycle Surge Forward Current
(Non-Repetitive 60Hz)
Junction Temperature
Storage Temperature Range
Marking
E
F
E
Lot No.
B23
Type Name
ELECTRICAL CHARACTERISTICS (Ta=25 )
CHARACTERISTIC
Peak Forward Voltage
Repetitive Peak Reverse Current
SYMBOL
V
FM
I
RRM
R
th(j-1)
Thermal Resistance
R
th(j-a)
R
th(j-a)
I
FM
=2A
V
RRM
=Rated
Junction to lead
Junction to ambient
(on a ceramic board)
Junction to ambient
(on a grass-epoxy board)
TEST CONDITION
MIN.
-
-
-
-
-
TYP.
-
-
-
-
-
MAX.
0.42
1.0
20
70
135
/W
UNIT
V
mA
2008. 9. 11
Revision No : 2
1/2
SMFB23
AVERAGE FORWARD POWER DISSIPATION
P
F(AV)
(W)
I
F
- V
F
10
FORWARD CURRENT I
F
(A)
5
3
1
0.5
0.3
0.1
0.05
0.03
0.01
T
j
=125 C
25 C
P
F(AV)
- I
F(AV)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
0.4
0.8
1.2
1.6
0
DC
180
120
α=60
RECTANGULAR
WAVEFORM
α
360
CONDUCTION
ANGLE
α
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
2.0
2.4
FORWARD VOLTAGE V
F
(V)
AVERAGE FORWARD CURRENT I
F(AV)
(A)
MAXIMUM ALLOWABLE TEMPERATURE
Ta MAX ( C)
SURGE FORWARD CURRENT
(NON - REPETITIVE)
PEAK SURGE FORWARD CURRENT
I
FSM
(A)
40
Ta=25 C
f=60Hz
Ta -
140
120
100
80
60
40
20
0
0
0
α
360
I
F(AV)
ON A GRASS-EPOXY
BOARD
30
α=60
RECTANGULAR
WAVEFORM
I
F(AV)
20
DC
120
180
10
0
1
10
NUMBER OF CYCLES
100
CONDUCTION
ANGLE
α
V
R
=15V
0.4
0.8
1.2
1.6
2.0
2.4
AVERAGE FORWARD CURRENT I
F(AV)
(A)
2008. 9. 11
Revision No : 2
2/2
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