1N4448HWT SURFACE MOUNT FAST SWITCHING DIODE Please click here to visit our online spice models database. Features Mechanical Data • • • • • • • • Fast Switching Speed Ultra-Small Surface Mount Package For General Purpose Switching Applications High Conductance Lead Free by Design/RoHS Compliant (Note 1) "Green" Device (Notes 3 and 4) • • • • • • • Case: SOD-523 Case Material: Molded Plastic, "Green" Molding Compound, Note 4. UL Flammability Classification Rating 94V-0 Moisture Sensitivity: Level 1 per J-STD-020D Terminal Connections: Cathode Band Terminals: Solderable per MIL-STD-202, Method 208 Lead Free Plating (Matte Tin Finish) annealed over Alloy 42 leadframe. Marking Information: See Page 2 Ordering Information: See Page 2 Weight: 0.002 grams (approximate) SOD-523 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 Value 100 Unit V 80 V V mA mA IFSM 57 250 125 2.0 1.0 Symbol PD RθJA TJ, TSTG Value 150 833 -65 to +150 Unit mW °C/W °C @ t = 1.0μs @ t = 1.0s A Thermal Characteristics Characteristic Power Dissipation (Note 2) Thermal Resistance Junction to Ambient (Note 2) Operating and Storage Temperature Range Electrical Characteristics Characteristic Reverse Breakdown Voltage (Note 5) Forward Voltage @TA = 25°C unless otherwise specified Symbol V(BR)R VF Min 80 0.62 ⎯ ⎯ ⎯ Max ⎯ Unit V 0.72 0.855 1.0 1.25 V nA μA μA nA Peak Reverse Current (Note 5) IR ⎯ 100 50 30 25 Total Capacitance CT ⎯ 3.0 pF Reverse Recovery Time trr ⎯ 4.0 ns Notes: Test Conditions IR = 100μA IF = 5.0mA IF = 10mA IF = 100mA IF = 150mA VR = 80V VR = 75V, TJ = 150°C VR = 25V, TJ = 150°C VR = 20V VR = 0.5V, f = 1.0MHz IF = IR = 10mA, Irr = 0.1 x IR, RL = 100Ω 1. 2. 3. 4. No purposefully added lead. 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. Diode's Inc.'s "Green" Policy can be found on our website at http://www.diodes.com/products/lead_free/index.php. Product manufactured with date code 0627 (week 27, 2006) and newer are built with Green Molding Compound. Product manufactured prior to date code 0627 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants. 5. Short duration pulse test used to minimize self-heating effect. 1N4448HWT Document number: DS30395 Rev. 8 - 2 1 of 4 www.diodes.com July 2009 © Diodes Incorporated IF, INSTANTANEOUS FORWARD CURRENT (mA) 1N4448HWT PD, POWER DISSIPATION (mW) 200 150 100 50 0 125 25 100 50 75 TA, AMBIENT TEMPERATURE (°C) Fig. 1 Power Derating Curve 150 TA = 100°C 1.0 TA = 75° C 0.10 T A = 50°C TA = 25°C TA = 0° C 0.01 TA = -30°C 0.1 2.0 1.5 1.0 0.5 0 0 2 4 6 8 10 IF, FORWARD CURRENT (mA) Fig. 4 Reverse Recovery Time vs. Forward Current 40 60 80 20 VR, INSTANTANEOUS REVERSE VOLTAGE (V) Fig. 3 Typical Reverse Characteristics Ordering Information (Notes 4 & 6) Part Number 1N4448HWT-7 (Note 7) Notes: 1 2.5 10.0 0.001 0 10 0 1,000 800 400 600 200 VF, INSTANTANEOUS FORWARD VOLTAGE (mV) Fig. 2 Typical Forward Characteristics trr, REVERSE RECOVERY TIME (nS) IR, INSTANTANEOUS REVERSE CURRENT (μA) 0 100 Case SOD-523 Packaging 3000/Tape & Reel 6. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf. 7. Dispensed in every other cavity of the tape. Marking Information T8 T8 = Product Type Marking Code Cathode Band 1N4448HWT Document number: DS30395 Rev. 8 - 2 2 of 4 www.diodes.com July 2009 © Diodes Incorporated 1N4448HWT Package Outline Dimensions L C SOD-523 Dim Min Max A 0.25 0.35 B 0.70 0.90 C 1.50 1.70 H 1.10 1.30 K 0.55 0.65 L 0.10 0.30 M 0.10 0.12 All Dimensions in mm H M A K B Suggested Pad Layout C X Y G Dimensions Value (in mm) Z 2.3 G 1.1 X 0.8 Y 0.6 C 1.7 Z 1N4448HWT Document number: DS30395 Rev. 8 - 2 3 of 4 www.diodes.com July 2009 © Diodes Incorporated 1N4448HWT 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). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein 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 Diodes Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. 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. Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2009, Diodes Incorporated www.diodes.com 1N4448HWT Document number: DS30395 Rev. 8 - 2 4 of 4 www.diodes.com July 2009 © Diodes Incorporated