LL4448

LL4448 FAST SWITCHING SURFACE MOUNT DIODES VOLTAGE 100 Volts POWER 500 mW MINI-MELF/LL-34 Unit : inch (mm) FEATURES • Fast switching Speed. • Surface Mount Package Ideally Suited For Automatic Insertion. • Silicon Epitaxal Planar Construction. • In compliance with EU RoHS 2002/95/EC directives MECHANICAL DATA • Case: Mini MELF • Terminals: Solderable per MIL-STD-750, Method 2026 • Polarity: Cathode Band • Marking: Cathode Band Only • Weight: 0.05 grams(approx) .020(0.5) .012(0.3) .146(3.7) .130(3.3) .020(0.5) .012(0.3) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS (TJ =25°C unless otherwise noted) PARAMETER Peak Reverse Voltage Maximum DC Blocking Voltage Maximum Average Forward Current at Ta=25 Surge Forward Current at t < 1s and Tj= =25 Power Dissipation at Tamb= 25 O O SYMBOL VRM VDC C And f >50Hz LL4448 100 75 150 500 500 1.0 30 50 4 4 300 -65 to +175 .055(1.4)DIA. .063(1.6) UNITS V V mA mA mW V nA µA pF ns O IAV IFSM PTOT VF IR CJ trr RθJ A TJ,TS O C C Maximum Forward Voltage at IF =100mA Maximum Leakage Current at VR =20V at VR =20V ,TJ= 150O C Maximum Capacitance at VF =VR =0 Maximum Reverse Recovery Time From IF =-IR =10mA to IR R =-1mA ,VR =6V RL =100 Ω Maximum Thermal Resistance Junction Temperature and Storage Temperature Range C/W O C NOTE: 1. CJ at VR=0, f=1MHZ 2. From IF=10mA to IR=1mA, VR=6Volts, RL=100Ω STAD-JUL.31.2007 PAGE . 1 LL4448 RATING A ND CHARACTERISTIC CURVES A 10 2 I v=tp / T T =1/fp tp I FRM T t I FRM 10 1 V=0 V=0.1 10 0 V=0.2 V=0.3 10 -1 10 -5 10 -4 10 -3 10 -2 10 -1 10 0 10 1 S tp Fig.1 A DMISSIBLE REPETITIVE PEAK FORWARD CURRENT VERSUS PULSE DURATION 10 4 10 3 T J =25 C f=1KHz O FORWARD RESISTANCE, W 10 3 FORWARD CURRENT, mA 10 2 10 1 10 2 10 0 10 1 10 -1 T J =100 C~T J =25 C 10 10 -2 0 O O 10 -2 10 -1 10 0 10 1 10 2 0 1 FORWARD VOLTAGE, VOLTS 2 FORWARD CURRENT, mA Fig.2-DYNAMIC FORWARD RESISTANCE VERSUS FORWARD CURRENT Fig.3 FORWARD CHARACTERISTICS POWER DISSIPATION, mW 1.1 500 T J =25 O C f=1KHz 300 CAPACITANCE, pF 100 200 1.0 0.9 0.8 100 0.7 0 AMBIENT TEMPERATURE 0 2 4 6 8 1.0 REVERSE VOLTAGE, VOLTS Fig.4 DERATING CURVE Fig.5 TYPICAL JUNCTION CAPACITANCE STAD-JUL.31.2007 PAGE . 2 LL4448 MOUNTING PAD LAYOUT ORDER INFORMATION • Packing information T/R - 10K per 13" plastic Reel T/R - 2.5K per 7" plastic Reel LEGAL STATEMENT Copyright PanJit International, Inc 2007 The information presented in this document is believed to be accurate and reliable. The specifications and information herein are subject to change without notice. Pan Jit makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose. Pan Jit products are not authorized for use in life support devices or systems. Pan Jit does not convey any license under its patent rights or rights of others. STAD-JUL.31.2007 PAGE . 3