BAS21T SURFACE MOUNT FAST SWITCHING DIODE Features Mechanical Data Ultra-Small Surface Mount Package Fast Switching Speed For General Purpose Switching Applications High Reverse Breakdown Voltage Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. "Green" Device (Note 3) Case: SOT-523 Case Material: Molded Plastic, "Green" Molding Compound (Note 5). 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 Weight: 0.002 grams (Approximate) SOT-523 TOP VIEW TOP VIEW Internal Schematic Ordering Information (Notes 4) Part Number BAS21T-7-F Notes: Compliance Commercial Case SOT-523 Packaging 3000/Tape & Reel 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated's definitions of Halogen- and Antimony-free, "Green and Lead-free. 3. Halogen- and Antimony-free "Green" products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. 4. For packaging details, go to our website at http://www.diodes.com/package-outlines.html. 5. Product manufactured with Date Code UO (week 40, 2007) and newer are built with Green Molding Compound. Product manufactured prior to Date Code UO are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants. Marking Information T3 = Product Type Marking Code YM = Date Code Marking Y = Year (ex: F = 2018) M = Month (ex: 9 = September) T3YM Date Code Key Year Code Month Code 2017 2018 2019 2020 2021 2022 2023 2024 P ..... ..... E F G H I J K L Mar 3 Apr 4 May 5 Jun 6 Jul 7 Aug 8 Sep 9 Oct O Nov N Dec D 2001 2002 2003 M N Jan 1 Feb 2 BAS21T Document number: DS30264 Rev. 11 - 2 1 of 5 www.diodes.com June 2018 (c) Diodes Incorporated BAS21T Maximum Ratings @TA = 25C unless otherwise specified Characteristic Repetitive Peak Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage RMS Reverse Voltage Forward Continuous Current (Note 6) Average Rectified Output Current (Note 6) Non-Repetitive Peak Forward Surge Current Symbol VRRM VRWM VR VR(RMS) IFM IO Value 250 Unit V 200 V V mA mA IFRM 141 400 200 2.5 0.5 625 Symbol PD RJA TJ, TSTG Value 150 833 -65 to +150 Unit mW C/W C @ t = 1.0s @ t = 1.0s IFSM Repetitive Peak Forward Surge Current A mA Thermal Characteristics Characteristic Power Dissipation (Note 6) Thermal Resistance Junction to Ambient (Note 6) Operating and Storage Temperature Range Electrical Characteristics @TA = 25C unless otherwise specified Characteristic Reverse Breakdown Voltage (Note 7) Symbol V(BR)R Min 250 Forward Voltage VF Reverse Current @ Rated DC Blocking Voltage (Note 7) IR Total Capacitance Reverse Recovery Time Notes: Unit V Max 1.0 1.25 100 15 CT 5.0 pF trr 50 ns V nA A Test Condition IR = 100A IF = 100mA IF = 200mA TJ = 25C TJ = 100C VR = 0, f = 1.0MHz IF = IR = 30mA, Irr = 0.1 x IR, RL = 100 6. Device mounted on FR-4 PCB with recommended pad layout, which can be found on our website at http://www.diodes.com/package-outlines.html. IFM, IO are valid provided that terminals are kept at ambient temperature. 7. Short duration pulse test used to minimize self-heating effect. BAS21T Document number: DS30264 Rev. 11 - 2 2 of 5 www.diodes.com June 2018 (c) Diodes Incorporated IF, INSTANTANEOUS FORWARD CURRENT (A) BAS21T 200 P D, POWER DISSIPATION (mW) Note61 Note 150 100 50 0 1 0.1 0.01 0.001 0 100 TA, AMBIENT TEMPERATURE ( C) Fig. 1 Power Derating Curve 200 0 0.2 0.4 0.8 1.0 0. 6 1.2 1.4 VF, INSTANTANEOUS FORWARD VOLTAGE (V) Fig. 2 Typical Forward Characteristics 0 10 30 40 20 VR, DC REVERSE VOLTAGE (V) Fig. 4 Total Capacitance vs. Reverse Voltage 4.0 100 TA = 150C 3.5 10 CT, TOTAL CAPACITANCE (pF) TA = 125C TA = 75C 1 0.1 TA = 25C 0.01 TA = 0C 0.001 TA = -40C 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0.0001 0 150 200 250 50 100 VR, INSTANTANEOUS REVERSE VOLTAGE (V) Fig. 3 Typical Reverse Characteristics BAS21T Document number: DS30264 Rev. 11 - 2 3 of 5 www.diodes.com June 2018 (c) Diodes Incorporated BAS21T Package Outline Dimensions Please see http://www.diodes.com/package-outlines.html for the latest version. SOT523 E E1 SOT523 Dim Min Max Typ A1 0.00 0.10 0.05 A2 0.60 0.80 0.75 A3 0.45 0.65 0.50 b 0.15 0.30 0.22 c 0.10 0.20 0.12 D 1.50 1.70 1.60 E 1.45 1.75 1.60 E1 0.75 0.85 0.80 e 0.50 BSC e1 0.90 1.10 1.00 L 0.20 0.40 0.33 a 0 -8 All Dimensions in mm b e1 D A2 A3 c a e A1 L Suggested Pad Layout Please see http://www.diodes.com/package-outlines.html for the latest version. SOT523 Y1 C Dimensions Y X1 BAS21T Document number: DS30264 Rev. 11 - 2 X 4 of 5 www.diodes.com C X X1 Y Y1 Value (in mm) 1.29 0.40 0.70 0.51 1.80 June 2018 (c) Diodes Incorporated BAS21T 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. This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the final and determinative format released by Diodes Incorporated. 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 (c) 2018, Diodes Incorporated www.diodes.com BAS21T Document number: DS30264 Rev. 11 - 2 5 of 5 www.diodes.com June 2018 (c) Diodes Incorporated