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1SMB5929B-13
Zener Single Diode, 15 V, 3 W, DO-214AA (SMB), 2 Pins, 150 °C, Surface Mount
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- Manufacturer: DIODES INC.
- Product type: Zener Single Diodes
- SVHC: Lead (25-Jun-2025)
- No. of Pins: 2Pins
- Product Range: 1SMB59xxB Series
- Qualification: -
- Diode Mounting: Surface Mount
- Diode Case Style: DO-214AA (SMB)
- Power Dissipation: 3W
- Zener Voltage Nom: 15V
- Operating Temperature Max: 150°C
| Delivery and price | |
|---|---|
| Units per pack | 1000 |
| Price | 0.125 € |
| Current stock | 500+ |
| Lead time | 30 days |
Datasheet
**Green** ~~@,~~ **1SMB5920B – 1SMB5956B** Ot **3.0W SURFACE MOUNT POWER ZENER DIODE** ## **Features** ## **Mechanical Data** - 3.0W Power Dissipation - Ideally Suited for Automated Assembly - 6.2V - 200V Nominal Zener Voltage Range - Standard VZ Tolerance is ±5% - ESD Rating of Class 3 (>16kV) per Human Body Model - **Lead-Free Finish; RoHS Compliant (Notes 1 & 2)** - **Halogen and Antimony Free. “Green” Device (Note 3)** - Case: SMB - Case Material: Molded Plastic. UL Flammability Classification Rating 94V-0 - Moisture Sensitivity: Level 1 per J-STD-020 - Copper Alloy Leadframe with Lead-Free Plating (Matte Tin Finish). Solderable per MIL-STD-202, Method 208 - Polarity: Cathode Band - Weight: 0.096 grams (Approximate) ## **SMB** Top View Bottom View ## **Ordering Information** (Note 4) |**Ordering Informationg Information Information** (Note 4)||| |---|---|---| |**Device***|**Packaging**|**Shipping**| |1SMB59xxB-13|SMB|3000/Tape &Reel| - *x = Device Voltage, e.g., 1SMB5920B-13. - Notes: 1. EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. All applicable RoHS exemptions applied. 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/products/packages.html. ## **Marking Information** **SMB** **==> picture [40 x 29] intentionally omitted <==** **----- Start of picture text -----**<br> YWW<br>B9xx<br>**----- End of picture text -----**<br> B9xx = Product Type Marking Code (See Electric Characteristics Table) = Manufacturers’ Code Marking YWW = Date Code Marking Y = Last Digit of Year (ex: 4 for 2014) WW = Week Code (01 - 53) 1 of 7 **www.diodes.com** 1SMB5920B – 1SMB5956B Document number: DS32125 Rev. 8 - 2 May 2019 © Diodes Incorporated **1SMB5920B – 1SMB5956B** ## **Maximum Ratings** (@TA = +25°C, unless otherwise specified.) |**Maximum Ratingsgss** (@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|(@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)||| |---|---|---|---| |**Characteristic**|**Symbol**|**Value**|**Unit**| |Forward Voltage@IF= 200mA|VF|1.5|V| |Zener Current(See Page 3)|IZM|PD/ VZ|mA| ## **Thermal Characteristics** |**Thermal Characteristics**|||| |---|---|---|---| |**Characteristic**|**Symbol**|**Value**|**Unit**| |Power Dissipation @TL= +75°C<br>Derate Above +75°C(Note 5)|PD|3.0<br>40|W<br>mW/°C| |Thermal Resistance - Junction to Terminal(Note 5)|RϴJT|25|°C/W| |Power Dissipation @TA= +25°C<br>DerateAbove+25°C (Note 5)|PD|550<br>4.4|mW<br>mW/°C| |Thermal Resistance - Junction to Ambient(Note 5)|RϴJA|226|°C/W| |Operatingand Storage Temperature Range|TJ,TSTG|-65 to +150|°C| Note: 5. Device mounted on FR-4 PCB; pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com. 2 of 7 **www.diodes.com** 1SMB5920B – 1SMB5956B Document number: DS32125 Rev. 8 - 2 May 2019 © Diodes Incorporated **1SMB5920B – 1SMB5956B** **Electrical Characteristics** (@TA = +25°C, unless otherwise specified.) |**Electrical Characteristics** (@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Electrical Characteristics** (@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Electrical Characteristics** (@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Electrical Characteristics** (@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Electrical Characteristics** (@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Electrical Characteristics** (@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Electrical Characteristics** (@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Electrical Characteristics** (@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Electrical Characteristics** (@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Electrical Characteristics** (@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Electrical Characteristics** (@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)|**Electrical Characteristics** (@TA = +25°C, unless otherwise specified.)A = +25°C, unless otherwise specified.)= +25°C, unless otherwise specified.)| |---|---|---|---|---|---|---|---|---|---|---|---| |~~aee~~|||||||||||| |**Type**<br>**Number**|**Marking**<br>**Code**|**Zener Voltage**<br>**Range (Note 6)**<br>~~a~~<br>~~pt~~|||**Test**<br>**Current**<br>~~ee~~<br>~~pt~~|**Maximum Zener Impedance**<br>**(Note 7)**<br>~~tft~~|||**Maximum**<br>**Reverse**<br>**Current(Note 6) I**<br>~~tft~~||**IZM Max**<br>~~tft~~| |||**VZ @IZT**<br>~~a~~<br>~~pt~~|||**IZT**<br>~~ee~~<br>~~pt~~|**ZZT @IZT**<br>~~tft~~|**ZZK @IZK**<br>~~tft~~||**IR @VR**<br>~~tft~~||| |||**Min(V)**<br>~~a~~<br>~~pt~~|**Typ (V)**<br>~~a~~<br>~~pt~~|**Max(V)**<br>~~a ~~<br>~~pt~~|**mA**<br> ~~ee~~<br>~~pt~~|**Ω**<br>~~tft~~|**Ω**<br>~~tft~~|**mA**<br>~~tft~~|**µA **<br>~~tft~~|**V**<br>~~tft~~|**mA**<br>~~tft~~| |1SMB5920B|B920|5.89<br>~~pt~~|6.2<br>~~pt~~|6.51<br>~~pt~~|60.5<br>~~pt ~~|2<br> ~~tft~~|200<br>~~tft~~|1<br>~~tft~~|5<br>~~tft~~|4<br>~~tft~~|241<br>~~tft~~| |1SMB5921B|B921|6.46|6.8|7.14|55.1|2.5|200|1|5|5.2|220| |1SMB5922B|B922|7.12|7.5|7.88|50|3|400|0.5|5|6|200| |1SMB5923B|B923|7.79|8.2|8.61|45.7|3.5|400|0.5|5|6.5|182| |1SMB5924B|B924|8.64|9.1|9.56|41.2|4|500|0.5|5|7|164| |1SMB5925B|B925|9.5|10|10.5|37.5|4.5|500|0.25|5|8|150| |1SMB5926B|B926|10.45|11|11.55|34.1|5.5|550|0.25|1|8.4|136| |1SMB5927B|B927|11.4|12|12.6|31.2|6.5|550|0.25|1|9.1|125| |1SMB5928B|B928|12.35|13|13.65|28.8|7|550|0.25|1|9.9|115| |1SMB5929B|B929|14.25|15|15.75|25|9|600|0.25|1|11.4|100| |1SMB5930B|B930|15.2|16|16.8|23.4|10|600|0.25|1|12.2|93| |1SMB5931B|B931|17.1|18|18.9|20.8|12|650|0.25|1|13.7|83| |1SMB5932B|B932|19|20|21|18.7|14|650|0.25|1|15.2|75| |1SMB5933B|B933|20.9|22|23.1|17|17.5|650|0.25|1|16.7|68| |1SMB5934B|B934|22.8|24|25.2|15.6|19|700|0.25|1|18.2|62| |1SMB5935B|B935|25.65|27|28.35|13.9|23|700|0.25|1|20.6|55| |1SMB5936B|B936|28.5|30|31.5|12.5|28|750|0.25|1|22.8|50| |1SMB5937B|B937|31.35|33|34.65|11.4|33|800|0.25|1|25.1|45| |1SMB5938B|B938|34.2|36|37.8|10.4|38|850|0.25|1|27.4|41| |1SMB5939B|B939|37.05|39|40.95|9.6|45|900|0.25|1|29.7|38| |1SMB5940B|B940|40.85|43|45.15|8.7|53|950|0.25|1|32.7|34| |1SMB5941B|B941|44.65|47|49.35|8|67|1000|0.25|1|35.8|31| |1SMB5942B|B942|48.45|51|53.55|7.3|70|1100|0.25|1|38.8|29| |1SMB5943B|B943|53.2|56|58.8|6.7|86|1300|0.25|1|42.6|26| |1SMB5944B|B944|58.9|62|65.1|6|100|1500|0.25|1|47.1|24| |1SMB5945B|B945|64.6|68|71.4|5.5|120|1700|0.25|1|51.7|22| |1SMB5946B|B946|71.25|75|78.75|5|140|2000|0.25|1|56|20| |1SMB5947B|B947|77.9|82|86.1|4.6|160|2500|0.25|1|62.2|18| |1SMB5948B|B948|86.45|91|95.55|4.1|200|3000|0.25|1|69.2|16| |1SMB5949B|B949|95|100|105|3.7|250|3100|0.25|1|76|15| |1SMB5950B|B950|104.5|110|115.5|3.4|300|4000|0.25|1|83.6|13| |1SMB5951B|B951|114|120|128|3.1|380|4500|0.25|1|91.2|12| |1SMB5952B|B952|123.5|130|136.5|2.9|450|5000|0.25|1|98.8|11| |1SMB5953B|B953|142.5|150|157.5|2.5|600|6000|0.25|1|114|10| |1SMB5954B|B954|152|160|168|2.3|700|6500|0.25|1|121.6|9| |1SMB5955B|B955|171|180|189|2.1|900|7000|0.25|1|136.8|8| |1SMB5956B|B956|190|200|210|1.9|1200|8000|0.25|1|152|7| - Notes: 6. Short duration pulse test used to minimize self-heating effect. 7. ZENER IMPEDANCE (ZZ) DERIVATION ZZT and ZZK are measured by dividing the AC voltage drop across the device by the AC current applied. The specified limits are for IZ(AC) = 0.1 IZ(DC) with the AC frequency = 60 Hz. 3 of 7 **www.diodes.com** 1SMB5920B – 1SMB5956B Document number: DS32125 Rev. 8 - 2 May 2019 © Diodes Incorporated **1SMB5920B – 1SMB5956B** **==> picture [213 x 429] intentionally omitted <==** **----- Start of picture text -----**<br> 6<br>5 Note 5<br>4<br>TL<br>3<br>2<br>1<br>TA<br>0 NN<br>0 25 50 75 100 125 150<br>TA, AMBIENT TEMPERATURE ( °C)<br>Figure Power Dissipation<br>vs. Ambient Temperature<br>100<br>a |<br>S08 008 |ee<br>15V 39V<br>6.2V 13V<br>10<br>SSS SSSS<br>Seo soo i iceeeseoseeetaoe<br>B08 008te<br>8Oe 1<br>1<br>OE<br>EEREre ee 0eeeeeeteee<br>S08 00 ee<br>0.1 CPLECHPIEETEEETEETTTELLE<br>0 10 20 30 40 50<br>VZ, ZENER VOLTAGE (V)<br>Figure 3 Typical Zener Breakdown Characteristics<br>, MAXIMUM POWER DISSIPATION (W)<br>D<br>P<br>, ZENER CURRENT (mA)<br>IZ<br>**----- End of picture text -----**<br> **==> picture [214 x 645] intentionally omitted <==** **----- Start of picture text -----**<br> 250<br>200<br>150<br>100<br>50<br>0<br>0 50 100 150 200<br>VZ, ZENER VOLTAGE (V)<br>Figure 2 Typical Temperature Coefficient of<br>Zener Voltage vs. Zener Voltage<br>100<br>a a GG GO OO A<br>i<br>200V<br>10 a<br>SSS<br>i SSS SS FSRSSEE<br>PET TTT TP rr yy ey ey ye<br>1<br>BOERU ERDEOUEUERUERUE<br>ERReeeRRR RRRRReeeEH<br>a<br>0.1 PEEECCEPPEEEE<br>50 100 150 200 ET 250<br>VZ, ZENER VOLTAGE (V)<br>Figure 4 Typical Zener Breakdown Characteristics<br>1000<br>ECAFONON 200V TT<br>eae cae<br>100<br>IIITHN 3.3V TTTa UT<br>SSRNSSS aa<br>STEN \ ‘<br>13V MN<br>\<br>mn SNOT<br>10 LAINIE ANUNUTT<br>Eee RS<br>Se ee eeesetea<br>oS 6.2V<br>On No<br>LE TPT et<br>1<br>0.1 TAH 1 EE 10 Et 100 TAT 1000<br>IZ, ZENER TEST CURRENT (mA)<br>Figure 6 Effect of Zener Current<br>, TEMPERATURE COEFFICIENT<br>Z<br>OF ZENER VOLTAGE (mV/°C)<br>TC of V<br>, ZENER CURRENT (mA)<br>IZ<br>)Ω<br>ZZ, DYNAMIC IMPEDANCE (<br>**----- End of picture text -----**<br> 4 of 7 **www.diodes.com** 1SMB5920B – 1SMB5956B Document number: DS32125 Rev. 8 - 2 May 2019 © Diodes Incorporated **1SMB5920B – 1SMB5956B** **==> picture [478 x 439] intentionally omitted <==** **----- Start of picture text -----**<br> 1800<br>f = 1MHz<br>1600<br>1400 at Seat 100 Peak Value I pp -<br>1200<br>Bn a Be<br>1000 |<br>Half Value I /2<br>pp<br>UN Sa<br>800<br>SA V R = 0V 50 Al, |b<br>600 CNNTE AT<br>400 V R = VZ [/2]<br>200<br>t<br>p 8x20 Waveform<br>0 NG = ENT<br>1 CC 10 SST 100 100 0 0 Poa as defined by R.E.A.<br>V Z, NOMINAL ZENER BREAKDOWN VOLTAGE (V) 0 20 40 60<br>Figure 7 Typical Total Capacitance t, TIME (µs)<br>vs. Nominal Zener Breakdown Voltage Figure 8 Pulse Waveform<br>10<br>100 Peak Value I<br>pp<br>1<br>Half Value I /2<br>pp<br>50<br>0.1<br>t<br>p 10 X 1000 Waveform 0.01<br>as defined by R.E.A. 0.01 0.1 1 10<br>0<br>0 PS 1 MSE] 2 3 SHEP td , PULSE DURATION (ms)<br>t, TIME (ms) Figure 10 Max. Peak Pulse Power<br>Figure 9 Pulse Waveform vs. Pulse Duration<br>)pp<br>, TOTAL CAPACITANCE (pF)T<br>C<br>, PEAK PULSE CURRENT (%I<br>PP<br>I<br>)pp<br>, PEAK PULSE POWER (kW)<br>PK<br>P<br>, PEAK PULSE CURRENT (%I<br>IP<br>**----- End of picture text -----**<br> 5 of 7 **www.diodes.com** 1SMB5920B – 1SMB5956B Document number: DS32125 Rev. 8 - 2 May 2019 © Diodes Incorporated **1SMB5920B – 1SMB5956B** ## **Package Outline Dimensions** Please see http://www.diodes.com/package-outlines.html for the latest version. **==> picture [21 x 7] intentionally omitted <==** **----- Start of picture text -----**<br> SMB<br>**----- End of picture text -----**<br> **==> picture [127 x 157] intentionally omitted <==** **----- Start of picture text -----**<br> B<br>— —<br>A C<br>:( po e<br>D<br>+ an<br>J<br>—<br>H G<br>E<br>a<br>**----- End of picture text -----**<br> |**SMB**|**SMB**|**SMB**| |---|---|---| |**Dim**|**Min**|**Max**| |**A**|3.30|3.94| |**B**|4.06|4.57| |**C**|1.96|2.21| |**D**|0.15|0.31| |**E**|5.00|5.59| |**G**|0.05|0.20| |**H**|0.76|1.52| |**H**<br>**J**|0.76<br>2.00|1.52<br>2.50| |**All Dimensions in mm**||| ## **Suggested Pad Layout** Please see http://www.diodes.com/package-outlines.html for the latest version. **==> picture [21 x 7] intentionally omitted <==** **----- Start of picture text -----**<br> SMB<br>**----- End of picture text -----**<br> **==> picture [111 x 68] intentionally omitted <==** **----- Start of picture text -----**<br> X1<br>X<br>ene<br>Y<br>as G<br>C<br>**----- End of picture text -----**<br> |**Dimensions**|**Value**<br>**(in mm)**| |---|---| |**C**|4.30| |**G**|1.80| |**X**|2.50| |**X1**|6.80| |**Y**|2.30| 6 of 7 **www.diodes.com** 1SMB5920B – 1SMB5956B Document number: DS32125 Rev. 8 - 2 May 2019 © Diodes Incorporated **1SMB5920B – 1SMB5956B** ## **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<br>trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume<br>all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated<br>website, harmless against all damages.<br>Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.<br>Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and<br>hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or<br>indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.<br>Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings<br>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 © 2019, Diodes Incorporated| |**www.diodes.com**| 7 of 7 **www.diodes.com** 1SMB5920B – 1SMB5956B Document number: DS32125 Rev. 8 - 2 May 2019 © Diodes Incorporated
Updated at June 7, 2026
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