MMBD4448 SURFACE MOUNT SWITCHING DIODE Features Mechanical Data Fast Switching Speed Case: SOT-23 Surface Mount Package Ideally Suited for Automated Insertion Case Material: Molded Plastic. UL Flammability Classification Rating 94V-0 For General Purpose Switching Applications Moisture Sensitivity: Level 1 per J-STD-020 High Conductance Terminals: Matte Tin Finish annealed over Alloy 42 leadframe Lead, Halogen and Antimony Free, RoHS Compliant (Lead Free Plating). Solderable per MIL-STD-202, Method 208 Green Device (Notes 1 and 2) Polarity: See Diagram Weight: 0.008 grams (approximate) SOT-23 Top View Top View Internal Schematic Ordering Information (Note 3) Part Number Case Packaging MMBD4448-7-F SOT-23 3000/Tape & Reel Notes: 1. No purposefully added lead. Halogen and Antimony Free. 2. Product manufactured with Date Code V9(week 34, 2008) and newer are built with Green Molding Compound. Product manufactured prior to Date Code V9 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants. 3. For packaging details, go to our website at MMBD4448 Maximum Ratings T = 25C unless otherwise specified A Characteristic Symbol Value Unit Non-Repetitive Peak Reverse Voltage V 100 V RM V Peak Repetitive Reverse Voltage RRM Working Peak Reverse Voltage V 75 V RWM DC Blocking Voltage V R RMS Reverse Voltage 53 V V R(RMS) Forward Continuous Current (Note 4) I 500 mA FM Average Rectified Output Current (Note 4) I 250 mA O Non-Repetitive Peak Forward Surge Current t = 1.0s 4.0 A I FSM t = 1.0s 1.0 Thermal Characteristics Characteristic Symbol Value Unit Power Dissipation (Note 4) P 350 mW D Thermal Resistance Junction to Ambient Air (Note 4) 357 R C/W JA Operating and Storage Temperature Range T , T -65 to +150 C J STG Electrical Characteristics T = 25C unless otherwise specified A Characteristic Symbol Min Max Unit Test Condition Reverse Breakdown Voltage (Note 5) 75 V V I = 2.5A (BR)R R 0.62 I = 5.0mA 0.72 F 0.855 I = 10mA F Forward Voltage V V F 1.0 I = 100mA F 1.25 I = 150mA F V = 75V 2.5 A R 50 V = 75V, T = 150C A R J Reverse Current (Note 5) I R 30 A V = 25V, T = 150C R J 25 nA V = 20V R Total Capacitance C 4.0 pF V = 0, f = 1.0MHz T R I = I = 10mA, F R Reverse Recovery Time t 4.0 ns rr I = 0.1 x I , R = 100 rr R L Notes: 4. Part mounted on FR-4 board with recommended pad layout, which can be found on our website at