MMBD4448H 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 Free/RoHS Compliant (Note 3) Case: SOT-23 Case Material: Molded Plastic. UL Flammability Classification Rating 94V-0 Moisture Sensitivity: Level 1 per J-STD-020D 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 Average Rectified Output Current Non-Repetitive Peak Forward Surge Current (Note 1) (Note 1) @ t = 1.0μs @ t = 1.0s Value 100 Unit V 80 V V mA mA IFSM 57 500 250 4.0 2.0 Symbol PD RθJA TJ , TSTG Value 350 357 -65 to +150 Unit mW °C/W °C A Thermal Characteristics Characteristic Power Dissipation Thermal Resistance Junction to Ambient Air Operating and Storage Temperature Range Electrical Characteristics Characteristic Reverse Breakdown Voltage (Note 1) (Note 1) @TA = 25°C unless otherwise specified (Note 2) Forward Voltage Reverse Current Total Capacitance Reverse Recovery Time Notes: Symbol V(BR)R VF (Note 2) Min 80 0.62 ⎯ ⎯ ⎯ Max ⎯ Unit V 0.72 0.855 1.0 1.25 V nA μA μA nA pF ns IR ⎯ 100 50 30 25 CT trr ⎯ ⎯ 3.5 4.0 Test Condition IR = 2.5μA IF = 5.0mA IF = 10mA IF = 100mA IF = 150mA VR = 70V VR = 75V, TJ = 150°C VR = 25V, TJ = 150°C VR = 20V VR = 6V, f = 1.0MHz VR = 6V, IF = 5mA 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. MMBD4448H Document number: DS30176 Rev. 9 - 2 1 of 3 www.diodes.com April 2008 © Diodes Incorporated MMBD4448H IF, INSTANTANEOUS FORWARD CURRENT (mA) PD, POWER DISSIPATION (mW) 500 400 300 200 100 0 40 80 120 160 TA, AMBIENT TEMPERATURE (ºC) Fig. 1 Power Derating Curve 0 1,000 200 10 TA = -40ºC TA = 0ºC TA = 25ºC 1 TA = 75ºC TA = 125ºC 0.1 0 0.8 0.4 1.2 1.6 VF, INSTANTANEOUS FORWARD VOLTAGE (V) Fig. 2 Typical Forward Characteristics 3 f = 1MHz 1,000 CT, TOTAL CAPACITANCE (pF) IR, INSTANTANEOUS REVERSE CURRENT (nA) 10,000 100 100 10 1 0.1 0 1.5 1 0.5 0 10 20 30 40 50 VR, DC REVERSE VOLTAGE (V) Fig. 4 Total Capacitance vs. Reverse Voltage (Note 4) Part Number MMBD4448H-7-F Notes: 2 0 20 40 VR, INSTANTANEOUS REVERSE VOLTAGE (V) Fig. 3 Typical Reverse Characteristics Ordering Information 2.5 Case SOT-23 Packaging 3000/Tape & Reel 4. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf. KA3 YM Marking Information KA3 = Product Type Marking Code YM = Date Code Marking Y = Year ex: N = 2002 M = Month ex: 9 = September Date Code Key Year Code 2001 M 2002 N 2003 P 2004 R 2005 S 2006 T 2007 U 2008 V 2009 W 2010 X 2011 Y 2012 Z 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 MMBD4448H Document number: DS30176 Rev. 9 - 2 2 of 3 www.diodes.com April 2008 © Diodes Incorporated MMBD4448H Package Outline Dimensions SOT-23 Dim Min Max A 0.37 0.51 B 1.20 1.40 C 2.30 2.50 D 0.89 1.03 F 0.45 0.60 G 1.78 2.05 H 2.80 3.00 J 0.013 0.10 K 0.903 1.10 L 0.45 0.61 M 0.085 0.180 8° 0° α All Dimensions in mm A B C TOP VIEW G H K M J D F L Suggested Pad Layout Y Z C X Dimensions Value (in mm) Z 2.9 X 0.8 Y 0.9 C 2.0 E 1.35 E IMPORTANT NOTICE Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. LIFE SUPPORT Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the President of Diodes Incorporated. MMBD4448H Document number: DS30176 Rev. 9 - 2 3 of 3 www.diodes.com April 2008 © Diodes Incorporated