LL4148

LL4148/MM4148 SMALL SIGNAL SWITCHING DIODE MINI MELF FEATURES Silicon epitaxial planar diode Fast switching diodes 500mw power dissipation High temperature soldering guaranteed 250 C/10S at terminals 0.063(1.6) 0.055(1.4) DIA. 0.020(0.5) 0.012(0.3) 0.146(3.7) 0.130(3.3) 0.020(0.5) 0.012(0.3) MECHANICAL DATA Case: MINI MELF glass sealed envelope. Terminals: Plated axial leads, solderable per MIL-STD-750, Method 2026 Polarity: Color band denotes cathode end Mounting Position: Any Weight:0.002 ounce, 0.05 grams Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 C ambient temperature unless otherwise specified. Single phase half-wave 60Hz,resistive or inductive load,for capacitive load current derate by 20%. SYMBOLS LL4148/MM4148 UNITS VOLTS VOLTS mAmps Maximum repetitive peak reverse voltage Maximum RMS voltage Maximum average forward rectified current 0.375”(9.5mm) lead length at TA=75 C Peak forward surge current 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) Maximum instantaneous forward voltage at 10mA Maximum DC reverse current TA=25 C VR=75V at rated DC blocking voltage TA=100 C VR=20V Maximum reverse recovery time (NOTE 1) Typical junction capacitance (NOTE 2) Operating junction and storage temperature range NOTES: 1.Test condition:IF=10mA,IR=10mA,Irr=1mA,VR=6V,RL=100W. 2.Measured at 1.0 MHz and applied reverse voltage of 4.0 volts VRRM VRMS I(AV) 100 75 150 IFSM VF IR trr CJ TJ,TSTG 500 1.0 5.0 50 4.0 4.0 -65 to +200 mAmps Volts uA ns pF C www.shunyegroup.com RATINGS AND CHARACTERISTIC CURVES LL4148/MM4148 FIG. 2-REVERSE CURRENT VERSUS CONTINUOUS REVERSE VOLTAGE (TYPICAL VALUES) INSTANTANEOUS REVERSE CURRENT, MICROAMPERES 1 FIG. 1-ADMISSIBLE POWER DISSIPATION VERSUS AMBIENT TEMPERATURE P,POWER DISSIPATION,MILLIWATTS 800 700 600 500 400 300 200 100 0 0 100 200 C 0.1 0.01 0.001 TJ=25 C AMBIENT TEMPERATURE, C 0.0001 40 60 80 100 120 PERCENT OF PEAK REVERSE VOLTAGE,% FIG. 3-FORWARD CHARACTERISTICS 16 INSTANTANEOUS FORWARD CURRENT,MILLIAMPERES FIG. 4-RELATIVE CAPACTANCE VERSUS REVERSE VOLTAGE Ctot(vR) RELATIVE CAPACTANCE Ctot(0v) 14 12 10 8 6 4 2 0 0 1 2V 1.2 1.0 0.8 0.6 INSTANTANEOUS FORWARD VOLEAGE, V0LTS 0.4 0 5 10V REVERSE VOLTAGE,VOLTS. FIG. 5-ADMISSIBLE REPETITIVE PEAK FORWARD CURRENT VERSUS PULSE DURATION IFRM,PEAK FORWARD CURRENT,AMPERES 100 n=tp/T V=tp/T T=1/fp tp 10 IFRM n=0 0.1 0.2 T 1 0.5 0.1 0.01 0.1 1 10 100 1000ms tp,PULSE DURATION,ms www.shunyegroup.com