1N4448W

Surface Mount Switching Diode P b Lead(Pb)-Free WEITRON 1N4448W SWITCHING DIODE 250m AMPERES 100 VOLTS Features: * High Conductance * Fast Switching Speed * Surface Mount Package Ideally Suited for Automatic Insertion * For General Purpose Switching Application Mechanical Data: * Case: SOD-323, Molded Plastic * Terminals: Plated Leads Solderable per MIL-STD-202, Method 208 * Polarity: Cathode Band * Weight: 0.01grams (approx) 1 2 SOD-123 SOD-123 Outline Dimensions Unit:mm SOD-123 Dim A B C D E H J K Min Max 2.55 2.85 1.40 1.80 0.95 1.35 0.50 0.70 0.30 REF 0.10 0.15 3.55 3.85 PIN 1. CATHODE 2. ANODE http://www.weitron.com.tw WEITRON 1/3 02-Oct-06 1N4448W Maximum Ratings Rating Reverse Voltage Nop-Reptitive Peak Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Vlotage RMS Reverse Voltage Forward Continuous Current Average Recfified Output Current Non-Repetitive Peak Forward Surge Current @ t=1.0µs @ t=1.0s Total Device Dissipation Thermal Resistance Junction to Ambient Air Junction and Storage Temperature Storage Temperature WEITRON Symbol VRM VRRM VRWM VR VR(RMS) IFM IO IFSM PD RθJA TJ Tstg (TA=25˚C Unless Otherwise note) Value 100 75 53 500 250 4.0 2.0 400 315 + 150 -65 to +150 Unit V V V mA mA A mW K/W °C °C Electrical Characteristics (TA=25˚C Unless Otherwise note) Characterictics Symbol Min Max Unit Off Characteristics Reverse Breakdown Voltage I R=10µA Forward Voltage I F=5.0mA I F=10mA I F=100mA I F=150mA VR 0.62 - 75 0.72 0.855 1.00 1.25 2.5 25 4.0 4.0 ns VF V Reverse Voltage Leakage Current VR=75V VR=20V Diode Capacitance VR=0, f=1.0MHz Revarse Recover Time IF=IR=10mA, Irr=0.1 x IR, RL=100Ω IR CT tr r µA nA pF ns Device Marking Item 1N4448W Marking T5 Eqivalent Circuitdiagram 1 2 http://www.weitron.com.tw WEITRON 2/3 02-Oct-06 1N4448W Typical Characteristics 500 Pd, POWER DISSIPATION (mW) 100 IF, F RWARD CURRENT (mA) 400 300 10 Ta = 25°C Ta = 50°C 200 Ta = 85°C 1 Ta = 0°C Ta = -30°C 100 0 0 25 50 75 100 125 150 TA, AMBIENT TEMPERATURE (°C) Fig. 1 Power Derating Curve 0.1 0 200 400 600 800 1000 VF, FORWARD VOLTAGE (mV) Fig. 2 Typical Forward Characteristics 10.0 trr, REVERSE RECOVERY TIME (nS) 2.5 IR, REVERSE CURRENT (µA) Ta = 100°C 2.0 1.0 1.5 Ta = 75°C 0.10 Ta = 50°C Ta = 25°C 1.0 0.01 Ta = -30°C Ta = 0°C 0.5 0.001 0 0 20 40 60 80 0 2 4 6 8 10 VR, REVERSE VOLTAGE (V) Fig. 3 Typical Reverse Characteristics 4 f = 1MHz IF, FORWARD CURRENT (mA) Fig. 4 Reverse Recovery Time vs. Forward Current CT, TOTAL CAPACITANCE (pF) 3 2 1 0 0 1 2 3 4 5 6 VR, REVERSE VOLTAGE (V) Fig. 5 Total Capacitance vs. Reverse Voltage http://www.weitron.com.tw WEITRON 3/3 02-Oct-06