MMBD4448HT/HTA HTC/HTS Surface Mount Switching Diodes SWITCHING DIODES 250 mAMPERES 80 VOLTS P b Lead(Pb)-Free Features: * Ultra-Small Surface Mount Package * Fast switching Speed * For General Purpose Switching Applications * High Conductance 3 1 Mechanical Data: 2 SOT-523(SC-75) * Terminals: Solderable per MIL-STD-202, Method 208 * Polarity: See Diagrams Page.2 * Marking: See Diagrams Page.2 * Weight: 0.002 grams (approx) SOT-523 Outline Dimensions (SC-75) SOT-523 A B TOP VIEW Dim A B C D E G H J K L M C D E G H K J WEITRON http://www.weitron.com.tw Unit:mm L M 1/3 Min 0.30 0.70 1.45 0.15 0.80 1.40 0.00 0.70 0.37 0.10 Max 0.50 0.90 1.75 0.50 0.40 1.00 1.80 0.10 1.00 0.48 0.25 31-May-07 MMBD4448HT/HTA HTC/HTS Maximum Ratings (TA=25°C Unless otherwise noted) Characteristic Symbol Value Unit Non-Repetitve Peak Reverse Voltage Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage VRM 100 V VRRM VRRM VR 80 V Forward Continuous Current IFM 500 mA Average Rectified Output Current IO 250 mA IFSM 4.0 2.0 A Pd 150 mW RθJA 833 °C/W Junction Temperature Range Tj +150 °C Storage Temperature Range TSTG -65 to + 150 °C Non-Repetitive Peak Forward Surge Current @t=1.0µS @t=1.0S Power Dissipation Thermal Resistance Electrical Characteristics (TA=25˚C Unless otherwise noted) Characteristic Reverse Breakdown Voltage IR=2.5µA Forward Voltage IF=5mA IF=10mA IF=100mA IF=150mA Symbol Min Max Unit V(BR)R 80 - V 620 720 855 1000 1250 mV VF Total Capacitance VR=6V, f=1.0MHz Reverse Current VR=70V VR=20V Reverse Recover Time VR=6V, IF=5mA CT - 3.5 pF IR - 0.1 0.025 µA Trr - 4.0 nS Device Marking Item Marking MMBD4448HT A3 3 1 MMBD4448HTS AB 3 1 2 MMBD4448HTC A7 3 1 2 MMBD4448HTA A6 3 1 2 WEITRON http://www.weitron.com.tw Eqivalent Circuit diagram 2/3 31-May-07 MMBD4448HT/HTA HTC/HTS Electrical Characteristic curves(TA=25˚C) WEITRON http://www.weitron.com.tw 3/3 31-May-07