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LS4448 SILICON EPITAXIAL PLANAR DIODE fast switching diode in QuadroMELF case especially suited for automatic surface mounting. Identical electrically to standard JEDEC 1N4448. LS-34 QuadroMELF Dimensions in mm Absolute Maximum Ratings (Ta = 25 OC) Parameter Peak Reverse Voltage Reverse Voltage Rectified Current (Average) Half Wave Rectification with Resist. Load (f 50 Hz) Surge Forward Current at t < 1 s and Tj = 25 OC Power Dissipation Junction Temperature Storage Temperature Range 1) Symbol VRM VR IO IFSM Ptot Tj TS Value 100 75 150 1) Unit V V mA mA mW O 500 500 1) 175 - 65 to + 175 C C O Valid provided that electrodes are kept at ambient temperature. Characteristics at Ta = 25 OC Parameter Forward Voltage at IF = 5 mA at IF = 100 mA Leakage Current at VR = 20 V at VR = 75 V Reverse Breakdown Voltage tested with 100 A Pulses Capacitance at VF = VR = 0 Reverse Recovery Time from IF = 10 mA to IR = 1 mA, VR = 6 V, RL = 100 Thermal Resistance Junction to Ambient Air Rectification Efficiency at f = 100 MHz, VRF = 2 V 1) Symbol VF Min. 0.62 100 0.45 Max. 0.72 1 25 5 4 4 0.35 1) - Unit V IR V(BR)R Ctot trr RthA v nA A V pF ns K/mW - Valid provided that electrodes are kept at ambient temperature. SEMTECH ELECTRONICS LTD. (R) (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 12/01/2007 LS4448 Forward characteristics mA 10 3 Dynamic forward resistance versus forward current LL 4448 LL 4448 10 4 5 2 Tj=25 oC f=1KHz 10 2 iF 10 o Tj=100 C o Tj=25 C 10 3 rf 5 2 10 2 1 5 2 10 -1 10 5 2 10 -2 0 1 VF 2V 1 10 -2 10 -1 1 10 IF 10 2 mA Admissible power dissipation versus ambient temperature Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature Relative capacitance versus reverse voltage mW 1000 900 800 700 600 500 400 300 200 100 0 0 100 LL 4448 LL 4448 Tj=25 oC f=1MHz 1.1 Ctot(VR) Ctot(0V) 1.0 Ptot 0.9 0.8 0.7 o 0 0 2 4 6 VR 8 10 V 200 C Tamb SEMTECH ELECTRONICS LTD. (R) (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 12/01/2007 LS4448 Leakage current versus junction temperature nA 10 4 5 2 LL 4448 10 3 IR 5 2 2nF 60 10 2 5 2 VRF =2V 5K ~ ~ ~ 10 5 Rectification Efficiency Measurement Circuit VR=20V 2 1 0 100 Tj 200 C o Admissible repetitive peak forward current versus pulse duratin A 100 5 4 3 2 I v=tp/T T=1/fp Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature LL 4448 IFRM v=0 tp t 10 IFRM 5 4 3 2 0.1 T 0.2 0.5 1 5 4 3 2 0.1 10 -5 2 5 10 -4 2 5 10 -3 2 5 10 -2 2 5 10 -1 2 5 1 2 5 10 s tp SEMTECH ELECTRONICS LTD. (R) (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 12/01/2007 Vo |
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