DATA SHEET 1N4148-34 SWITCHING DIODES 100 Volts VOLTAGE POWER 500 mWatts DO-34 Unit: inch (mm) FEATURES .017(0.42)TYP. .106(2.9)MAX. 1.02(26.0)MIN. • Fast switching Speed. • Electrically ldentical to Standerd JEDEC • High Conductance • Axial lead Package ldeally Suited for Automatic lnsertion. • Both normal and Pb free product are available : Normal : 80~95% Sn, 5~20% Pb Pb free: 98.5% Sn above MECHANICAL DATA • Case: Molded Glass DO-34 • Terminals: Solderable per MIL-STD-202E, Method 208 • Approx. Weight: 0.09 grams • Mounting Position: Any • Ordering information: Suffix : “ -34 ” to order DO-34 Package .079(2.0)MAX. 1.02(26.0)MIN. • Polarity: See Diagram Below • Packing information B - 2K per Bulk box T/R - 10K per 13" plastic Reel T/B - 5K per horiz. tape & Ammo box MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS (TJ =25°C unless otherwise noted) PA R A M E TE R S YM B O L 1N 4148 U N ITS VR 75 V P eak R everse Voltage V RM 100 V R M S Voltage V RM S 50 V IAV 150 mA IFSM 500 mA P TO T 500 mW M axim um Forw ard Voltage atIF =10m A VF 1.0 V M axim um Leakage C urrent atV R =20V atV R =75V atV R =20V ,TJ= 150 O C IR 25 5 50 nA µA µA M axim um C apacitance (N ote 1) CJ 4 pF M axim um R everse R ecovery Tim e (N ote 2) TRR 4 ns M axim um Therm alR esistance RθJA 350 Junction Tem perature and S torage Tem perature R ange TJ,TS -65 to +175 R everse Voltage M axim um A verage Forw ard C urrentatTa=25O C A nd f> 50H z S urge Forw ard C urrentatt< 1s and Tj=25 P ow erD issipation atTam b= 25 O O C C 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-JUN.02.2004 PAGE . 1 RATING AND 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 -1 10 -5 10 10 -4 10 -3 10 -2 10 -1 10 0 10 1 S tp Fig.1 ADMISSIBLE REPETITIVE PEAK FORWARD CURRENT VERSUS PULSE DURATION 10 4 10 3 10 2 10 1 10 0 10 -1 10 -2 10 3 10 2 10 FORWARD CURRENT, mA FORWARD RESISTANCE, W O T J =25 C f=1KHz 1 0 10 -2 10 10 -1 10 0 10 1 10 2 0 FORWARD CURRENT, mA Fig.2-DYNAMIC FORWARD RESISTANCE VERSUS FORWARD CURRENT 1.1 O T J =25 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-JUN.02.2004 200 0 2 4 6 8 1.0 REVERSE VOLTAGE, VOLTS Fig.5 TYPICAL JUNCTION CAPACITANCE PAGE . 2