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| MC4148 / MCL4448 SMALL SIGNAL SWITCHING DIODE FEATURES Silicon epitaxial planar diode Fast switching diodes 500mw power dissipation High temperature soldering guaranteed 250/10S at terminals MICRO-MELF .040(1.0) .048(1.2)DIA. MECHANICAL DATA Case: MICRO MELF, Glass Terminals: Solderable per MIL-STD-750, Method 2026 Polarity : Color band denotes cathode end Mounting Position: Any Weight :0.011 grams .043(1.1) .008(0.2) .079(2.0) .071(1.8) .008(0.2) Dimensions in inches and (millimeters) Maximum Ratings ( PARAMETER Peak Reverse Voltage T =25 C Unless otherwise noted) A SYMBOL VR M O MCL4148 / MCL4448 100 150 500 500 1.0 25 5 50 4 4 300 -65 to +175 UNITS V mA mA mW V nA A A pF ns O Maximum Average Forward Current at Ta=25 Surge Forward Current at t < 1s and Tj= =25 Power Dissipation at Tamb= 25 O C And f >50Hz IF (A V ) IF S M PT O T VF IR CJ trr RJ A TJ ,TS O C C Maximum Forward Voltage at IF =10mA Maximum Leakage Current at VR =20V at VR =75V at VR =20V ,TJ= 150O C Maximum Capacitance at VF =VR =0 Maximum Reverse Recovery Time From IF =-IR =10mA to IR R =-1mA ,VR =6V RL =100 Typical Thermal Resistance Junction Temperature and Storage Temperature Range C/W O C NOTE: 1. CJ at VR=0, f=1MHZ 2. From IF=10mA to IR=1mA, VR=6Volts, RL=100 MCL4148 / MCL4448 RATINGS AND CHARACTERISTIC CURVES FIG. 1-ADMISSIBLE POWER DISSIPATION VERSUS AMBIENT TEMPERATURE 700 600 500 400 300 200 100 0 0 100 200 FIG. 2-REVERSE CURRENT VERSUS CONTINUOUS REVERSE VOLTAGE (TYPICAL VALUES) INSTANTANEOUS REVERSE CURRENT, MICROAMPERES 1 P,POWER DISSIPATION,MILLIWATTS 800 0.1 0.01 0.001 TJ=25 C AMBIENT TEMPERATURE, 0.0001 40 60 80 100 120 PERCENT OF PEAK REVERSE VOLTAGE,% FIG. 3-FORWARD CHARACTERISTICS 16 INSTANTANEOUS FORWARD CURRENT,MILLIAMPERES 12 10 8 6 4 2 0 0 1 2V Ctot(vR) RELATIVE CAPACTANCE Ctot(0v) 14 FIG. 4-RELATIVE CAPACTANCE VERSUS REVERSE VOLTAGE 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 100 n=tp/T V=tp/T T=1/fp 10 tp IFRM,PEAK FORWARD CURRENT,AMPERES n=0 0.1 IFRM T 1 0.2 0.5 0.1 0.01 0.1 1 10 100 1000ms tp,PULSE DURATION,ms |
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