LL4448 FAST SWITCHING SURFACE MOUNT DIODES POWER 100 Volts VOLTAGE 500 mW MINI-MELF/LL-34 Unit : inch (mm) MECHANICAL DATA .063(1.6) • Fast switching Speed. • Surface Mount Package Ideally Suited For Automatic Insertion. • Silicon Epitaxal Planar Construction. • In compliance with EU RoHS 2002/95/EC directives .020(0.5) .012(0.3) .055(1.4)DIA. FEATURES .020(0.5) .012(0.3) • Case: Mini MELF • Terminals: Solderable per MIL-STD-750, Method 2026 • Polarity: Cathode Band • Marking: Cathode Band Only • Weight: 0.05 grams(approx) .146(3.7) .130(3.3) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS (TJ =25°C unless otherwise noted) SYMBOL LL4448 UNITS Peak Reverse Voltage VRM 100 V Maximum DC Blocking Voltage VDC 75 V IAV 150 mA IFSM 500 mA PTOT 500 mW PARAMETER Maximum Average Forward Current at Ta=25 Surge Forward Current at t < 1s and Tj= =25 Power Dissipation at Tamb= 25 O O O C And f >50Hz C C Maximum Forward Voltage at IF =100mA VF 1.0 V Maximum Leakage Current at VR =20V at VR =20V ,TJ= 150O C IR 30 50 nA µA Maximum Capacitance at VF =VR =0 CJ 4 pF Maximum Reverse Recovery Time From IF =-IR =10mA to IR R =-1mA ,VR =6V RL =100 Ω trr 4 ns Maximum Thermal Resistance RθJ A 300 Junction Temperature and Storage Temperature Range TJ,TS -65 to +175 O 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 I FRM t T 10 1 V=0 V=0.1 10 V=0.2 0 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 10 2 10 1 10 0 10 -1 10 -2 O 10 3 10 2 10 FORWARD CURRENT, mA FORWARD RESISTANCE, T J =25 C f=1KHz 1 O O T J =100 C~T J =25 C 0 10 10 -2 10 -1 10 0 10 1 10 2 0 FORWARD CURRENT, mA Fig.2-DYNAMIC FORWARD RESISTANCE VERSUS FORWARD CURRENT 1.1 T J =25 O C f=1KHz 500 300 2 Fig.3 FORWARD CHARACTERISTICS CAPACITANCE, pF POWER DISSIPATION, mW 1 FORWARD VOLTAGE, VOLTS 1.0 0.9 0.8 100 0.7 0 100 AMBIENT TEMPERATURE Fig.4 DERATING CURVE STAD-JUL.31.2007 200 0 2 4 6 8 1.0 REVERSE VOLTAGE, VOLTS Fig.5 TYPICAL JUNCTION CAPACITANCE 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