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SEMICONDUCTOR
TECHNICAL DATA
SWITCHING TYPE POWER SUPPLY APPLICATIONS. FEATURES
Low Profile Surface Mount Package. Low Power Loss, High Efficiency. For Use in Low Voltage, High Frequency inverters, Free Wheeling, and Polarity Protection Applications.
2
SMAB33
SCHOTTKY BARRIER TYPE DIODE
H
A
D
APPLICATION
Switching Power Supply. DC/DC Converter. Home Appliances, Office Equipment. Telecommunication.
1 C B
G
1. ANODE
DIM A B C D E F G H
MILLIMETERS _ 4.5 + 0.2 _ 2.6 + 0.2 _ 1.5 + 0.2 _ 5.0 + 0.3 _ 1.2 + 0.3 _ 2.0 + 0.2 0 ~ 0.15 R 0.5
MAXIMUM RATING (Ta=25
CHARACTERISTIC
)
SYMBOL VRRM IO IFSM Tj Tstg RATING 30 3 70 -40 125 -40 125 UNIT V A A
2. CATHODE
Maximum Repetitive Peak Reverse Voltage Average Output Rectitifed Current Peak One Cycle Surge Forward Current (Non-Repetitive 60Hz) Junction Temperature Storage Temperature Range
Marking
F
SMA
Type Name
B33
Lot No.
ELECTRICAL CHARACTERISTICS (Ta=25
CHARACTERISTIC Peak Forward Voltage Repetitive Peak Reverse Current Thermal Resistance VFM IRRM Rth(j-1) Rth(j-a)
)
TEST CONDITION IFM=3.0A VRRM=Rated Junction to lead Junction to ambient (on alumina substrate) MIN. TYP. MAX. 0.45 2.0 23 108 /W UNIT V mA
SYMBOL
2002. 3. 7
Revision No : 3
E
E
1/2
SMAB33
AVERAGE FORWARD POWER DISSIPATION P F(AV) (W)
I F - VF
10 FORWARD CURRENT I F (A) 5 3
T j =125 C 25 C
P F(AV) - I F(AV)
1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 0.6 1.2 1.8 2.4
180 360
1 0.5 0.3
RECTANGULAR WAVEFORM
0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
3.0
3.6
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) 80
Ta=25 C f=60Hz
Ta - I F(AV)
140 120 100
180
RECTANGULAR WAVEFORM
60
80 60 40 20 0 0 0.6 1.2 1.8 2.4
360
40
20
0 1 10 NUMBER OF CYCLES AT 60Hz 100
3.0
3.6
AVERAGE FORWARD CURRENT I F(AV) (A)
2002. 3. 7
Revision No : 3
2/2

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