MMSZ5221B - MMSZ5259B 500mW SURFACE MOUNT ZENER DIODE Features Mechanical Data  500mW Power Dissipation  Case: SOD123  General Purpose, Medium Current  Case Material: Molded Plastic, “Green” Molding Compound.  Ideally Suited for Automated Assembly Processes UL Flammability Classification Rating 94V-0  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Moisture Sensitivity: Level 1 per J-STD-020  Halogen and Antimony Free. “Green” Device (Notes 3 & 4)  Terminals: Matte Tin Finish Annealed over Alloy 42 Leadframe  Qualified to AEC-Q101 Standards for High Reliability (Lead Free Plating). Solderable per MIL-STD-202, Method 208  Polarity: Cathode Band  Weight: 0.01 grams (Approximate) SOD123 Top View Ordering Information (Note 5) Part Number Qualification Case Packaging (Type Number)-7-F* Commercial SOD123 3,000/Tape & Reel (Type Number)Q-7-F* Automotive SOD123 3,000/Tape & Reel (Type Number)-13-F* Commercial SOD123 10,000/Tape & Reel (Type Number)Q-13-F* Automotive SOD123 10,000/Tape & Reel *For (Type Number), please see the Electrical Characteristics Table. Example: 6.2V Zener = MMSZ5234B-7-F. Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com 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. Product manufactured with Date Code V9 (week 33, 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. 5. For packaging details, go to our website at http://www.diodes.com. Marking Information xx = Product Type Marking Code (See Electrical Characteristics Table) YM = Date Code Marking Y = Year (ex: E = 2017) M = Month (ex: 9 = September) Date Code Key Year 2013 2014 2015 2016 2017 … 2020 2021 2022 2023 2024 Code A B C D E … H I J K L 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 MMSZ5221B - MMSZ5259B 1 of 5 October 2017 Document number: DS18010 Rev. 28 - 2 www.diodes.com © Diodes Incorporated

MMSZ5221B - MMSZ5259B Maximum Ratings (@TA = +25°C, unless otherwise specified.) Characteristic Symbol Value Unit Forward Voltage @ IF = 10mA VF 0.9 V Thermal Characteristics Characteristic Symbol Value Unit Power Dissipation (Note 4) @TL = +75°C PD 500 mW Power Dissipation (Note 5) @TA = +25°C PD 370 mW Thermal Resistance, Junction to Ambient Air (Note 5) RθJA 338 °C/W Operating and Storage Temperature Range TJ, TSTG -65 to +150 °C Electrical Characteristics (@TA = +25°C, unless otherwise specified.) Maximum Zener Test Maximum Reverse Zener Voltage Range (Note 6) Impedance Current Leakage Current (Note 6) Type Type f = 1KHz Number Code VZ @ IZT IZT ZZT @ IZT Z= Z0K. 2@5m IZAK IR @ VR Nom (V) Min (V) Max (V) mA Ω A V MMSZ5221B C1 2.4 2.28 2.52 20 30 1,200 100 1.0 MMSZ5223B C3 2.7 2.57 2.84 20 30 1,300 75 1.0 MMSZ5225B C5 3.0 2.85 3.15 20 30 1,600 50 1.0 MMSZ5226B G1 3.3 3.14 3.47 20 28 1,600 25 1.0 MMSZ5227B G2 3.6 3.42 3.78 20 24 1,700 15 1.0 MMSZ5228B G3 3.9 3.71 4.10 20 23 1,900 10 1.0 MMSZ5229B G4 4.3 4.09 4.52 20 22 2,000 5.0 1.0 MMSZ5230B G5 4.7 4.47 4.94 20 19 1,900 5.0 2.0 MMSZ5231B E1 5.1 4.85 5.36 20 17 1,600 5.0 2.0 MMSZ5232B E2 5.6 5.32 5.88 20 11 1,600 5.0 3.0 MMSZ5233B E3 6.0 5.70 6.30 20 7 1,600 5.0 3.5 MMSZ5234B E4 6.2 5.89 6.51 20 7 1,000 5.0 4.0 MMSZ5235B E5 6.8 6.46 7.14 20 5 750 3.0 5.0 MMSZ5236B F1 7.5 7.13 7.88 20 6 500 3.0 6.0 MMSZ5237B F2 8.2 7.79 8.61 20 8 500 3.0 6.5 MMSZ5238B F3 8.7 8.27 9.14 20 8 600 3.0 6.5 MMSZ5239B F4 9.1 8.65 9.56 20 10 600 3.0 7.0 MMSZ5240B F5 10 9.50 10.50 20 17 600 3.0 8.0 MMSZ5241B H1 11 10.45 11.55 20 22 600 2.0 8.4 MMSZ5242B H2 12 11.40 12.60 20 30 600 1.0 9.1 MMSZ5243B H3 13 12.35 13.65 9.5 13 600 0.5 9.9 MMSZ5245B H5 15 14.25 15.75 8.5 16 600 0.1 11 MMSZ5246B J1 16 15.20 16.80 7.8 17 600 0.1 12 MMSZ5248B J3 18 17.10 18.90 7.0 21 600 0.1 14 MMSZ5250B J5 20 19.00 21.00 6.2 25 600 0.1 15 MMSZ5251B K1 22 20.90 23.10 5.6 29 600 0.1 17 MMSZ5252B K2 24 22.80 25.20 5.2 33 600 0.1 18 MMSZ5254B K4 27 25.65 28.35 5.0 41 600 0.1 21 MMSZ5255B K5 28 26.60 29.40 4.5 44 600 0.1 21 MMSZ5256B M1 30 28.50 31.50 4.2 49 600 0.1 23 MMSZ5257B M2 33 31.35 34.65 3.8 58 700 0.1 25 MMSZ5258B M3 36 34.20 37.80 3.4 70 700 0.1 27 MMSZ5259B M4 39 37.05 40.95 3.2 80 800 0.1 30 Notes: 4. RΘJL = 132°C/W 5. Device mounted on FR-4 PCB with 1 inch copper pad layout. 6. Short duration pulse test used to minimize self-heating effect. MMSZ5221B - MMSZ5259B 2 of 5 October 2017 Document number: DS18010 Rev. 28 - 2 www.diodes.com © Diodes Incorporated

MMSZ5221B - MMSZ5259B 0.6 50 Note 5 0.5 W) PD vs.TL A) 40 ON ( 0.4 T (m ATI REN 30 SSIP 0.3 CUR DI PD vs.TA R R E 20 E N W 0.2 E PO , ZZ P, D I 10 0.1 0 0 0 25 50 75 100 125 150 0 1 2 3 4 5 6 7 8 9 10 T, TEMPERATURE (°C) V , ZENER VOLTAGE (V) Z Figure 1 Power Derating Curve Figure 2 Typical Zener Breakdown Characteristics 30 1,000 TJ = 25°C 10 12 F) p A) E ( NT (m 20 15 Nominal Zener Voltage TANC CURRE Test current IZ 18 CAPACI100 R L E 22 A N 10 T E 27 O Z T I, Z 33 36 39 C, T 0 10 0 10 20 30 40 1 10 100 V , ZENER VOLTAGE (V) V , NOMINAL ZENER VOLTAGE (V) Z Z Figure 3 Typical Zener Breakdown Characteristics Figure 4 Typical Total Capacitance vs. Nominal Zener Voltage 1,000 0.14 T 0.12 N E DANCE ()100 E COEFFICIGE (%/°C) 000...001680 E RA P UT 0.04 M TL R I RAVO 0.02 E ER EN MPNE 0 Z 10 EE Z, Z , TZF Z -0.02 VO F -0.04 O C -0.06 T 1 -0.08 1 10 100 0 5 10 15 20 25 30 35 40 VZ, ZENER VOLTAGE (V) VZ, ZENER VOLTAGE (V) Figure 5 Typical Zener Impedance Characteristics Figure 6 Typical Temperature Coefficient of Zener Voltage vs. Zener Voltage (MMSZ5227B - MMSZ5258B) MMSZ5221B - MMSZ5259B 3 of 5 October 2017 Document number: DS18010 Rev. 28 - 2 www.diodes.com © Diodes Incorporated

MMSZ5221B - MMSZ5259B Package Outline Dimensions Please see http://www.diodes.com/package-outlines.html for the latest version. SOD123 All 7° All R 0.1 0 0 All R 0.1 0 0 SOD123 A Dim Min Max Typ a A 1.00 1.35 1.05 A1 0.00 0.10 0.05 c L All 7° A1 b 0.52 0.62 0.57 c 0.10 0.15 0.11 He D 1.40 1.70 1.55 E 2.55 2.85 2.65 E He 3.55 3.85 3.65 L 0.25 0.40 0.30 a 0º 8º -- All Dimensions in mm b D Suggested Pad Layout Please see http://www.diodes.com/package-outlines.html for the latest version. SOD123 X1 Dimensions Value (in mm) X 0.900 Y X1 4.050 Y 0.950 X MMSZ5221B - MMSZ5259B 4 of 5 October 2017 Document number: DS18010 Rev. 28 - 2 www.diodes.com © Diodes Incorporated

MMSZ5221B - MMSZ5259B 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 © 2017, Diodes Incorporated www.diodes.com MMSZ5221B - MMSZ5259B 5 of 5 October 2017 Document number: DS18010 Rev. 28 - 2 www.diodes.com © Diodes Incorporated