NOT RECOMMENDED FOR NEW DESIGN, USE 1N5221B - 1N5267B MMSZ52xxB 500mW EPITAXIAL ZENER DIODE Features • 500mW Power Dissipation • High Stability • Surface Mount Equivalents Available • Hermetic Package • VZ - Tolerance ±5% • Lead Free Finish, RoHS Compliant (Note 2) Mechanical Data DO-35 • Case: DO-35 Dim Min Max • Case Material: Glass A 25.40 ⎯ • Moisture Sensitivity: Level 1 per J-STD-020 B ⎯ 4.00 • Leads: Solderable per MIL-STD-202, Method 208 • Terminals: Finish - Sn96.5Ag3.5. Solderable per C ⎯ 0.60 MIL-STD-202, Method 208 D ⎯ 2.00 • Polarity: Cathode Band All Dimensions in mm • Marking: Type Number • Weight: 0.13 grams (approximate) Maximum Ratings and Electrical Characteristics @TA = 25°C unless otherwise specified Characteristic Symbol Value Unit Power Dissipation (Note 1) PD 500 mW Thermal Resistance, Junction to Ambient Air (Note 1) RθJA 300 °C/W Forward Voltage @ IF = 200mA VF 1.1 V Operating and Storage Temperature Range TJ, TSTG -65 to +200 °C Notes: 1. Valid provided that leads are kept at TL ≤75°C with lead length = 9.5mm (3/8”) from case; derate above 75°C. 2. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied, see EU Directive 2002/95/EC Annex Notes. DS18006 Rev. 17 - 3 1 of 3 1N5221B - 1N5267B www.diodes.com © Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN, USE MMSZ52xxB Electrical Characteristics Table 1 @TA = 25°C unless otherwise specified Zener Voltage Range Test Maximum Zener Maximum Reverse Maximum (Note 3) Current Impedance Current Temperature Type Number VZ @ IZT IZT ZZT @ IZT ZZ0K. 2@5m IZAK = IR @VR Coe@ff iIcZTie nt Nom (V) Min (V) Max (V) mA Ω Ω µA V %/°C 1N5221B 2.4 2.28 2.52 20 30 1200 100 1.0 -0.085 1N5222B 2.5 2.38 2.63 20 30 1250 100 1.0 -0.085 1N5223B 2.7 2.57 2.84 20 30 1300 75 1.0 -0.080 1N5224B 2.8 2.66 2.94 20 30 1400 75 1.0 -0.080 1N5225B 3.0 2.85 3.15 20 29 1600 50 1.0 -0.075 1N5226B 3.3 3.14 3.47 20 28 1600 25 1.0 -0.070 1N5227B 3.6 3.42 3.78 20 24 1700 15 1.0 -0.065 1N5228B 3.9 3.71 4.10 20 23 1900 10 1.0 -0.060 1N5229B 4.3 4.09 4.52 20 22 2000 5.0 1.0 +0.055 1N5230B 4.7 4.47 4.94 20 19 1900 5.0 2.0 +0.030 1N5231B 5.1 4.85 5.36 20 17 1600 5.0 2.0 +0.030 1N5232B 5.6 5.32 5.88 20 11 1600 5.0 3.0 +0.038 1N5233B 6.0 5.70 6.30 20 7.0 1600 5.0 3.5 +0.038 1N5234B 6.2 5.89 6.51 20 7.0 1000 5.0 4.0 +0.045 1N5235B 6.8 6.46 7.14 20 5.0 750 3.0 5.0 +0.050 1N5236B 7.5 7.13 7.88 20 6.0 500 3.0 6.0 +0.058 1N5237B 8.2 7.79 8.61 20 8.0 500 3.0 6.5 +0.062 1N5238B 8.7 8.27 9.14 20 8.0 600 3.0 6.5 +0.065 1N5239B 9.1 8.65 9.56 20 10 600 3.0 7.0 +0.068 1N5240B 10 9.50 10.50 20 17 600 3.0 8.0 +0.075 1N5241B 11 10.45 11.55 20 22 600 2.0 8.4 +0.076 1N5242B 12 11.40 12.60 20 30 600 1.0 9.1 +0.077 1N5243B 13 12.35 13.65 9.5 13 600 0.5 9.9 +0.079 1N5244B 14 13.30 14.70 9.0 15 600 0.1 10 +0.082 1N5245B 15 14.25 15.75 8.5 16 600 0.1 11 +0.082 1N5246B 16 15.20 16.80 7.8 17 600 0.1 12 +0.083 1N5247B 17 16.15 17.85 7.4 19 600 0.1 13 +0.084 1N5248B 18 17.10 18.90 7.0 21 600 0.1 14 +0.085 1N5249B 19 18.05 19.95 6.6 23 600 0.1 14 +0.086 1N5250B 20 19.00 21.00 6.2 25 600 0.1 15 +0.086 1N5251B 22 20.90 23.10 5.6 29 600 0.1 17 +0.087 1N5252B 24 22.80 25.20 5.2 33 600 0.1 18 +0.087 1N5253B 25 23.75 26.25 5.0 35 600 0.1 19 +0.089 1N5254B 27 25.65 28.35 4.6 41 600 0.1 21 +0.090 1N5255B 28 26.60 29.40 4.5 44 600 0.1 21 +0.091 1N5256B 30 28.50 31.50 4.2 49 600 0.1 23 +0.091 1N5257B 33 31.35 34.65 3.8 58 700 0.1 25 +0.092 1N5258B 36 34.20 37.80 3.4 70 700 0.1 27 +0.093 1N5259B 39 37.05 40.95 3.2 80 800 0.1 30 +0.094 1N5260B 43 40.85 45.15 3.0 93 900 0.1 33 +0.095 1N5261B 47 44.65 49.35 2.7 105 1000 0.1 36 +0.095 1N5262B 51 48.45 53.55 2.5 125 1100 0.1 39 +0.096 1N5263B 56 53.20 58.80 2.2 150 1300 0.1 43 +0.096 1N5264B 60 57.00 63.00 2.1 170 1400 0.1 46 +0.097 1N5265B 62 58.90 65.10 2.0 185 1400 0.1 47 +0.097 1N5266B 68 64.60 71.40 1.8 230 1600 0.1 52 +0.097 1N5267B 75 71.25 78.75 1.7 270 1700 0.1 56 +0.098 Notes: 3. Based on dc measurement at thermal equilibrium; lead length = 9.5mm (3/8”); thermal resistance of heat sink = 30°C/W. DS18006 Rev. 17 - 3 2 of 3 1N5221B - 1N5267B www.diodes.com © Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN, USE MMSZ52xxB Ordering Information (Notes 4 & 5) Device Packaging Shipping (Type Number)-A DO-35 5K/Ammo Pack (Type Number)-T DO-35 10K/Tape & Reel Notes: 4. Add "-A" or "-T" to the appropriate type number in Table 1. Example: 6.2V Zener = 1N5234B-A for ammo pack. 5. For packaging details, visit our website at http://www.diodes.com/datasheets/ap02008.pdf. 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 © 2011, Diodes Incorporated www.diodes.com DS18006 Rev. 17 - 3 3 of 3 1N5221B - 1N5267B www.diodes.com © Diodes Incorporated