NOT RECOMMENDED FOR NEW DESIGN USE 1N4148W / 1N4448W LL4148 / LL4448 FAST SWITCHING SURFACE MOUNT DIODE Features and Benefits Mechanical Data • • • • • • • • • Fast Switching Speed Surface Mount Package Ideally Suited for Automatic Insertion General Purpose Rectification Silicon Epitaxial Planar Construction Lead Free Finish, RoHS Compliant (Note 1) Case: MiniMELF Case Material: Glass: UL Flammability Classification Rating 94V-0 Moisture Sensitivity: Level 1 per J-STD-020 Terminals: Finish - Sn97.5Ag2.5. Solderable per MIL-STD-202, Method 208 Polarity: Cathode Band Marking: Cathode Band Only Weight: 0.05 grams (approximate) • • • Ordering Information (Note 2) Part Number LL4148-13 LL4448-7 Notes: Case MiniMELF MiniMELF Packaging 10K/Tape & Reel, 13-inch 2.5K/Tape & Reel, 7-inch 1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2). All applicable RoHS exemptions applied. 2. For Packaging Details, go to our website at http://www.diodes.com. 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 3) Average Rectified Output Current (Note 3) Non-Repetitive Peak Forward Surge Current @ t = 1.0s @ t = 1.0μs Power Dissipation (Note 3) Derate above 25°C Thermal Resistance, Junction to Ambient Air (Note 3) Operating and Storage Temperature Range LL4148 100 LL4448 Unit V 75 V 53 300 500 150 1.0 2.0 500 1.68 300 -65 TO +175 IFSM PD RθJA TJ, TSTG V mA mA A mW mW/°C K/W °C Electrical Characteristics @TA = 25°C unless otherwise specified Characteristic Maximum Peak Reverse Current (Note 4) IRM Capacitance CJ Min 0.62 - Reverse Recovery Time trr - Forward Voltage Notes: Symbol LL4148 LL4448 LL4448 VF Max 1.0 0.72 1.0 5.0 50 30 25 4.0 Unit 4.0 ns V μA μA μA nA pF Test Condition IF = 10mA IF = 5.0mA IF = 100mA VR = 75V VR = 75V, TJ = 150°C VR = 75V, TJ = 150°C VR = 75V VR = 0, f = 1.0MHz IF = 10mA, to IR = 1.0mA, VR = 6.0V, RL = 100Ω 3. Valid provided that device terminals are kept at ambient Temperature. 4. Short duration pulse test used to minimize self-heating effect. LL4148 / LL4448 Document number: DS12013 Rev. 10 - 3 1 of 3 www.diodes.com May 2012 © Diodes Incorporated 1,000 LL4148 / LL4448 10,000 100 IR, LEAKAGE CURRENT (nA) IF, INSTANTANEOUS FORWARD CURRENT (mA) NOT RECOMMENDED FOR NEW DESIGN USE 1N4148W / 1N4448W 10 1.0 0.1 1,000 100 10 1 0.01 0 1 0 100 200 Tj, JUNCTION TEMPERATURE (° C) Fig. 2 Typical Leakage Current vs. Junction Temperature 2 VF, INSTANTANEOUS FORWARD VOLTAGE (V) Fig. 1 Typical Forward Characteristics Package Outline Dimensions A B C LL4148 / LL4448 Document number: DS12013 Rev. 10 - 3 MiniMELF Dim Min Max A 3.30 3.70 B 1.30 1.60 C 0.28 0.50 All Dimensions in mm 2 of 3 www.diodes.com May 2012 © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN USE 1N4148W / 1N4448W LL4148 / LL4448 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 © 2012, Diodes Incorporated www.diodes.com LL4148 / LL4448 Document number: DS12013 Rev. 10 - 3 3 of 3 www.diodes.com May 2012 © Diodes Incorporated