MMBD4448 SURFACE MOUNT SWITCHING DIODE Features • • • • • • Mechanical Data • • Fast Switching Speed Surface Mount Package Ideally Suited for Automated Insertion For General Purpose Switching Applications High Conductance Lead, Halogen and Antimony Free, RoHS Compliant "Green' Device (Notes 3 and 4) Case: SOT-23 Case Material: Molded Plastic. UL Flammability Classification Rating 94V-0 Moisture Sensitivity: Level 1 per J-STD-020 Terminals: Solderable per MIL-STD-202, Method 208 Lead Free Plating (Matte Tin Finish annealed over Alloy 42 leadframe). Polarity: See Diagram Marking Information: See Page 2 Ordering Information: See Page 2 Weight: 0.008 grams (approximate) • • • • • • • SOT-23 TOP VIEW Internal Schematic TOP VIEW Maximum Ratings @TA = 25°C unless otherwise specified Characteristic Non-Repetitive Peak Reverse Voltage Symbol VRM VRRM VRWM VR VR(RMS) IFM IO Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage RMS Reverse Voltage Forward Continuous Current (Note 1) Average Rectified Output Current (Note 1) Non-Repetitive Peak Forward Surge Current Value 100 Unit V 75 V V mA mA IFSM 53 500 250 4.0 2.0 Symbol PD RθJA TJ , TSTG Value 350 357 -65 to +150 Unit mW °C/W °C @ t = 1.0μs @ t = 1.0s A Thermal Characteristics Characteristic Power Dissipation (Note 1) Thermal Resistance Junction to Ambient Air (Note 1) Operating and Storage Temperature Range Electrical Characteristics Characteristic Reverse Breakdown Voltage (Note 2) Forward Voltage @TA = 25°C unless otherwise specified Symbol V(BR)R VF Min 75 0.62 ⎯ ⎯ ⎯ Max ⎯ Unit V 0.72 0.855 1.0 1.25 V Reverse Current (Note 2) IR ⎯ 2.5 50 30 25 Total Capacitance CT ⎯ 4.0 μA μA μA nA pF Reverse Recovery Time trr ⎯ 4.0 ns Notes: Test Condition IR = 2.5μA IF = 5.0mA IF = 10mA IF = 100mA IF = 150mA VR = 75V VR = 75V, TJ = 150°C VR = 25V, TJ = 150°C VR = 20V VR = 0, f = 1.0MHz IF = IR = 10mA, Irr = 0.1 x IR, RL = 100Ω 1. Part mounted on FR-4 board with recommended pad layout, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. 2. Short duration pulse test used to minimize self-heating effect. 3. No purposefully added lead. Halogen and Antimony Free. 4. 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. MMBD4448 Document number: DS12011 Rev. 16 - 2 1 of 4 www.diodes.com August 2010 © Diodes Incorporated MMBD4448 1,000 400 IF, INSTANTANEOUS FORWARD CURRENT (mA) PD, POWER DISSIPATION (mW) 500 Note 1 300 200 100 0 0 80 40 120 160 TA, AMBIENT TEMPERATURE (°C) Fig. 1 Power Derating Curve 200 10 1 0.1 0 0.8 0.4 1.2 1.6 VF, INSTANTANEOUS FORWARD VOLTAGE (V) Fig. 2 Typical Forward Characteristics 3.0 CT, TOTAL CAPACITANCE (pF) IR, INSTANTANEOUS REVERSE CURRENT (nA) 10,000 100 1,000 100 10 1 2.5 f = 1MHz 2.0 1.5 1.0 0.5 0 0.1 0 0 20 40 60 80 100 VR, INSTANTANEOUS REVERSE VOLTAGE (V) Fig. 3 Typical Reverse Characteristics 10 20 30 40 VR, DC REVERSE VOLTAGE (V) Fig. 4 Total Capacitance vs. Reverse Voltage Ordering Information (Note 5) Part Number MMBD4448-7-F Notes: Case SOT-23 Packaging 3000/Tape & Reel 5. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf. YM Marking Information KA3 Date Code Key Year 1999 Code K 2000 L 2001 M 2002 N 2003 P 2004 R 2005 S KA3 = Product Type Marking Code YM = Date Code Marking Y = Year (ex: N = 2002) M = Month (ex: 9 = September) 2006 T 2007 U 2008 V 2009 W 2010 X 2011 Y 2012 Z 2013 A 2014 B 2015 C Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Code 1 2 3 4 5 6 7 8 9 O N D MMBD4448 Document number: DS12011 Rev. 16 - 2 2 of 4 www.diodes.com August 2010 © Diodes Incorporated MMBD4448 Package Outline Dimensions A B C H K M K1 D J F L G SOT-23 Dim Min Max Typ A 0.37 0.51 0.40 B 1.20 1.40 1.30 C 2.30 2.50 2.40 D 0.89 1.03 0.915 F 0.45 0.60 0.535 G 1.78 2.05 1.83 H 2.80 3.00 2.90 J 0.013 0.10 0.05 K 0.903 1.10 1.00 K1 0.400 L 0.45 0.61 0.55 M 0.085 0.18 0.11 0° 8° α All Dimensions in mm Suggested Pad Layout Y Z C X MMBD4448 Document number: DS12011 Rev. 16 - 2 Dimensions Value (in mm) Z 2.9 X 0.8 Y 0.9 C 2.0 E 1.35 E 3 of 4 www.diodes.com August 2010 © Diodes Incorporated MMBD4448 IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). 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Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. 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