Frontier Electronics Corp. 667 E. COCHRAN STREET, SIMI VALLEY, CA 93065 TEL: (805) 522-9998 FAX: (805) 522-9989 E-mail: [email protected] Web: http://www.frontierusa.com CHIP HIGH SPEED SWITCHING DIODES SN4148-LFR FEATURES z DESIGNED FOR MOUNTING ON SMALL SURFACE z HIGH SPEED z HIGH MOUNTING CAPABILITY , STRONG SURGE WITHSTAND , HIGH RELIABILITY z ROHS 0.124 ( 3.15 ) 0.116 ( 2.95 ) 0.020 ( 0.5 ) Typ. 0.010 ( R0.25 ) Typ. 0.063 ( 1.6 ) 0.055 ( 1.4 ) MECHANICAL DATA z CASE: 1206(3216),MOLDED PLASTIC, DIMENSIONS IN MILLIMETERS z TERMINALS: SOLDER PLATED , SOLDERABLE PER MIL-STD-750 , METHOD 2026 z POLARITY :INDICATED BY CATHODE BAND z MOUNTING POSITION: ANY RATINGS 0.043 ( 1.1 ) 0.031 ( 0.8 ) SYMBOL SN4148-LFR UNITS REVERSE VOLTAGE VR 75 V PEAK REVERSE VOLTAGE VRM 100 V RECTIFIED CURRENT（AVERAGE） HALF WAVE RECTIFICATION WITH RESIST LOAD IO SURGE FORWARD CURRENT AT TP =1μ S AND TJ＝25℃ SURGE FORWARD CURRENT AT TP =1 S AND TJ＝25℃ POWER DISSIPATION AT Tamb=25℃ mA 150 AT Tamb＝25℃ AND f ≧ 50HZ （NOTE 1） IFSM 4.0 1.0 mA PD 350 mW JUNCTION TEMPERATURE TJ 175 ℃ STORAGE TEMPERATURE RANGE TS - 55 TO + 175 ℃ SYMBOL MIN TYP MAX FORWARD VOLTAGE AT IF=10mA VF - - 1 V LEAKAGE CURRENT AT VR=20V IR - - 25 nA IR - - 2.5 μA VR 100 - - V CTOT - - 4 PF TRR - - 4 nS CHARACTERISTICS TJ=25℃ AT VR=75V REVERSE BREAKDOWN VOLTAGE TESTED WITH 100μA PULSES CAPACITANCE AT VF=VR=0 REVERSE RECOVERY TIME FROM IF=10mA TO IR=1mA VR=6V RL=50Ω UNITS NOTE ： 1. LEADS KEPT AT AMBIENT TEMP. SN4148-LFR Page: 1 RATINGS AND CHARACTERISTIC CURVE SN4148-LFR FIG. 1 -FORWARD CHARACTERISTICS FIG. 2 -REVERSE CHARACTERISTICS 100u 1000 REVERSE CURRENT (A) FORWARD CURRENT (mA) 150℃ 125℃ 75℃ 25℃ -25℃ 100 10 10u 125℃ 1u 75℃ 100n 25℃ 10n 1 0 0.2 0.4 0.6 0.8 1.0 1.2 0 10 20 30 40 50 60 70 REVERSE VOLTAGE (V) 1.4 FORWARD VOLTAGE (V) FIG. 3 -CAPACITANCE BETWEEN 80 FIG. 4 -DERATING CURVE TERMINALS CHARACTERISTICS 5.0 120 F=1MHZ 4.0 100 Io CURRENT % TERMINALS (A) CAPACITANCE BETWEEN Ta=25℃ 3.0 2.0 1.0 80 60 40 20 0 0 0 2 4 6 8 10 12 REVERSE VOLTAGE ( V ) SN4148-LFR 14 0 25 50 75 100 125 150 175 200 AMBIENT TEMPERATURE ( Ta℃) Page: 2