1N4148

1N4148 SMALL SIGNAL SWITCHING DIODE DO-34(GLASS) DO-35(GLASS) FEATURES 1.0 2(26.0) MIN. 0.079(2.0) MAX 1.0 2(26.0) MIN. 0.079(2.0) MAX 0.106 (2.9) MAX Silicon epitaxial planar diode Switching diodes 500mw power dissipation High temperature soldering guaranteed 250 C/10 seconds,0.375”(9.5mm) lead length, 5 lbs. (2.3kg) tension 0.165 (4.2) MAX MECHANICAL DATA 1.0 2(26.0) MIN. 0.017(0.42) TYP 1.0 2(26.0) MIN. 0.018(0.45) TYP Case: DO-34\DO-35 glass sealed envelope. Terminals: Plated axial leads, solderable per MIL-STD-750, Method 2026 Polarity: Color band denotes cathode end Mounting Position: Any Weight:0.003 ounce, 0.09 grams(DO-34) 0.005 ounce, 0.14 grams(DO-35) 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%. Maximum repetitive peak reverse voltage Maximum RMS voltage Maximum average forward rectified current 0.375”(9.5mm) lead length at TA=25 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) 1N4148 UNITS 100 75 VOLTS VOLTS I(AV) 150 mAmps IFSM 500 mAmps VF 1.0 Volts IR 5.0 50 µA trr 4.0 ns 4.0 -65 to +200 pF C SYMBOLS VRRM VRMS CJ Operating junction and storage temperature range TJ,TSTG NOTES: 1.Test condition:IF=10mA,IR=10mA,Irr=1mA,VR=6V,RL=100Ω. 2.Measured at 1.0 MHz and applied reverse voltage of 4.0 volts 198 STAR SEA INSTANTANEOUS REVERSE CURRENT, MICROAMPERES P,POWER DISSIPATION,MILLIWATTS RATINGS AND CHARACTERISTIC CURVES 1N4148 FIG. 1-ADMISSIBLE POWER DISSIPATION VERSUS AMBIENT TEMPERATURE 800 700 600 500 400 300 200 100 0 0 100 200 C AMBIENT TEMPERATURE, C FIG. 2-REVERSE CURRENT VERSUS CONTINUOUS REVERSE VOLTAGE (TYPICAL VALUES) 1 0.1 0.01 TJ=25 C 0.001 0.0001 40 60 80 100 120 PERCENT OF PEAK REVERSE VOLTAGE,% FIG. 4-RELATIVE CAPACTANCE VERSUS REVERSE VOLTAGE INSTANTANEOUS FORWARD CURRENT,MILLIAMPERES FIG. 3-FORWARD CHARACTERISTICS Ctot(vR) RELATIVE CAPACTANCE Ctot(0v) 16 14 12 10 8 6 4 2 0 0 1 2V 1.2 1.0 0.8 0.6 0.4 0 INSTANTANEOUS FORWARD VOLTAGE, VOLTS 5 10V REVERSE VOLTAGE,VOLTS. FIG. 5-MAXIMUM PERMISSIBLE NON-REPETITIVE PEAK FORWARD CURRENT AS A FUNCTION OF PULSE DURATION 10 2 IFSM (A) 10 1 10 -1 1 10 10 2 Based on square wave currents. 199 10 3 tp(*s) 10 4 Tj=25* prior to surge. STAR SEA