Diodes SMD Type Schottky Diodes SS34AF (KS34AF) Unit:mm 1.60 (max) 1.30 (min) SMAF 3.70 (max) 3.30 (min) ● For surface mounted applications ● Reverse Voltage 45V 2.40 (min) 2.70 (max) ■ Features + - 2.80 1.80 1.60 ● High forward surge current capability 0.18-0.23 4.90 (max) 4.40 (min) 1.3 (max) 1.0 (min) 1.30(max) ● Forward Current 3.0A Recommended Land Pattern 1 Cathode 1.1 (min) ● Low power loss, high efficiency 2 Anode ■ Absolute Maximum Ratings Ta = 25℃ Parameter Symbol Rating Repetitive Peak Reverse Voltage VRRM 45 RMS Voltage VRMS 31.5 Maximum DC Blocking Voltage VDC 45 Forward Voltage @ IF=2A VF 0.7 Averaged Forward Current. IFAV 3 Peak Forward Surge Current @ 8.3ms IFSM 80 Maximum DC Reverse Current Ta=25℃ Ta=100℃ IR 0.5 10 Junction Temperature Tj 125 Storage Temperature Tstg -55 to 150 Unit V A mA ℃ ■ Marking Marking SS34A www.kexin.com.cn 1 Diodes SMD Type Schottky Diodes SS34AF (KS34AF) ■ Typical Characterisitics Fig.2 Typical Reverse Characteristics 3.0 100L FM 2.5 2.0 1.5 1.0 Si n g l e p h as e h al f -w av e 60 Hz r es i s t i v e o r i n d u c t i v e l o ad 0.5 0.0 25 50 75 100 125 150 Instaneous Reverse Current ( μA) Average Forward Current (A) Fig.1 Forward Current Derating Curve Ambient Temperature (° C) 10 4 T J =100° C 10 3 T J =75° C 10 2 10 1 10 0 T J =25° C 0 20 10 1.0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 Instaneous Forward Voltage (V) 2 www.kexin.com.cn 40 60 80 100 Fig.5 Maximum Non-Repetitive Peak Forward Surage Current Peak Forward Surage Current (A) Instaneous Forward Current (A) Fig.3 Typical Forward Characteristic 0.1 20 Percent of Rated Peak Reverse Voltage（%） 1.6 1.8 80 8.3 ms Single Half Sine Wave (JEDEC Method) 70 60 50 40 30 20 1 10 Number of Cycles at 60Hz 100