SEMICONDUCTOR SMAB34A TECHNICAL DATA SCHOTTKY BARRIER TYPE DIODE SWITCHING TYPE POWER SUPPLY APPLICATIONS. FEATURES B Low Profile Surface Mount Package. E 2 Low Power Loss, High Efficiency. A D For Use in Low Voltage, High Frequency inverters, Free E Wheeling, and Polarity Protection Applications. APPLICATION 1 C Switching Power Supply. DC/DC Converter. DIM A B C D E F G F Home Appliances, Office Equipment. Telecommunication. G 1. ANODE 2. CATHODE MAXIMUM RATING (Ta=25 ) CHARACTERISTIC SYMBOL RATING UNIT Maximum Repetitive Peak Reverse Voltage VRRM 40 V IO 3 A IFSM 70 A Tj -40 150 Tstg -40 150 Average Output Rectitifed Current Peak One Cycle Surge Forward Current (Non-Repetitive 60Hz) Junction Temperature Storage Temperature Range Unit : mm MILLIMETERS _ 0.3 4.3 + _ 0.12 2.525 + _ 0.18 1.45 + _ 0.2 5.0 + _ 0.35 1.15 + _ 0.175 2.075 + _ 0.08 0.23 + SMA(1) Marking Cathode Mark Type Name B34A Lot No. ELECTRICAL CHARACTERISTICS (Ta=25 ) CHARACTERISTIC SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Peak Forward Voltage VFM IFM=3.0A - - 0.52 V Repetitive Peak Reverse Current IRRM VRRM=Rated - - 0.2 mA Rth(j-l) Junction to lead - - 23 - - 108 Thermal Resistance 2007. 3. 20 Rth(j-a) Revision No : 2 Junction to ambient (on FR-4 PCB) /W 1/2 SMAB34A PF - IF IF - VF 2.5 Tl=150 C 1 Tl=100 C 0.1 Tl=25 C 200 400 600 D=tp/T T D=0.8 Tj=125 C 1.5 0.5 0.2 1.0 0.1 0.5 800 0 1 2 3 4 5 FORWARD VOLTAGE VF (mV) FORWARD CURRENT IF (A) SURGE FORWARD CURRENT (NON - REPETITIVE) Tl - IF 80 6 MAXIMUM ALLOWABLE TEMPERATURE Tl MAX ( C) 160 Ta=25 C f=60Hz 60 I FSM (A) DC tp 2.0 0.0 0.01 0 PEAK SURGE FORWARD CURRENT FORWARD POWER PF (W) FORWARD CURRENT IF (A) 10 40 20 0 140 120 100 80 60 40 20 0 1 10 100 0 1 2 3 FORWARD CURRENT (A) NUMBER OF CYCLES AT 60Hz IR - VR REVERSE CURRENT IR (A) 100 Tl=150 C 10 Tl=125 C Tl=100 C 1 Tl=75 C 0.1 Tl=50 C 0.01 Tl=25 C 0.001 0 5 10 15 20 25 30 35 40 45 REVERSE VOLTAGE VR (V) 2007. 3. 20 Revision No : 2 2/2