1SMA5921BT3G

**DATA SHEET www.onsemi.com** 

## 1.5 Watt Plastic Surface Mount Zener Voltage Regulators 1SMA59xxBT3G Series, SZ1SMA59xxBT3G Series 

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SMA<br>CASE 403D<br>STYLE 1<br>**----- End of picture text -----**<br>


This complete new line of 1.5 Watt Zener Diodes offers the following advantages. 

CATHODE ANODE 

## **Features** 

- Standard Zener Breakdown Voltage Range − 3.3 V to 68 V 

## **MARKING DIAGRAM** 

- ESD Rating of Class 3 (> 16 kV) per Human Body Model 

- Flat Handling Surface for Accurate Placement 

- Package Design for Top Slide or Bottom Circuit Board Mounting 

- Low Profile Package 

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8xxB<br>AYWW �<br>**----- End of picture text -----**<br>


- Ideal Replacement for MELF Packages 

- AEC−Q101 Qualified and PPAP Capable − SZ1SMA59xxBT3G 

- SZ Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements 

- These are Pb−Free Devices* 

- 8xxB = Device Code (Refer to page 2) A = Assembly Location Y = Year WW = Work Week � = Pb−Free Package 

## **Mechanical Characteristics:** 

> **CASE:** Void-free, transfer-molded plastic 

**FINISH:** All external surfaces are corrosion resistant with readily solderable leads 

**MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES:** 260°C for 10 seconds 

**POLARITY:** Cathode indicated by molded polarity notch or cathode band 

**FLAMMABILITY RATING:** UL 94 V−0 @ 0.125 in 

## **MAXIMUM RATINGS** 

|**MAXIMUM RATINGS**||||
|---|---|---|---|
|**Rating**|**Symbol**|**Value**|**Unit**|
|DC Power Dissipation @ TL= 75°C,<br>Measured Zero Lead Length (Note 1)<br>Derate above 75°C<br>Thermal Resistance, Junction−to−Lead|PD<br>R�JL|1.5<br>20<br>50|W<br>mW/°C<br>°C/W|
|DC Power Dissipation @ TA= 25°C (Note 2)<br>Derate above 25°C<br>Thermal Resistance, Junction−to−Ambient|PD<br>R�JA|0.5<br>4.0<br>250|W<br>mW/°C<br>°C/W|
|Operating and Storage Temperature Range|TJ, Tstg|−65 to<br>+150|°C|



## **ORDERING INFORMATION** 

|**Device**|**Package**|**Shipping**†|
|---|---|---|
|1SMA59xxBT3G|SMA<br>(Pb−Free)|5,000 /<br>Tape & Reel|
|SZ1SMA59xxBT3G|SMA<br>(Pb−Free)|5,000 /<br>Tape & Reel|



†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. 

## **DEVICE MARKING INFORMATION** 

See specific marking information in the device marking column of the Electrical Characteristics table on page 2 of this data sheet. 

Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 

1. 1 in square copper pad, FR−4 board. 

2. FR−4 Board, using **onsemi** minimum recommended footprint. 

*For additional information on our Pb−Free strategy and soldering details, please download the **onsemi** Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. 

Publication Order Number: 

**1** 

© Semiconductor Components Industries, LLC, 2016 **August, 2021 − Rev. 11** 

**1SMA5913BT3/D** 

**1SMA59xxBT3G Series, SZ1SMA59xxBT3G Series** 

## **ELECTRICAL CHARACTERISTICS** (TA = 25 ° C unless 

otherwise noted, VF = 1.2 V Max. @ IF = 200 mA for all types) 

|otherwise n|oted, VF= 1.2 V Max. @ IF= 200 mA for all types)|
|---|---|
|**Symbol**|**Parameter**|
|VZ|Reverse Zener Voltage @ IZT|
|IZT|Reverse Current|
|ZZT|Maximum Zener Impedance @ IZT|
|IZK|Reverse Current|
|ZZK|Maximum Zener Impedance @ IZK|
|IR|Reverse Leakage Current @ VR|
|VR|Reverse Voltage|
|IF|Forward Current|
|VF|Forward Voltage @ IF|
|IZM|Maximum DC Zener Current|



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I<br>IF<br>VZ VR<br>V<br>IR VF<br>IZT<br>**----- End of picture text -----**<br>


**Zener Voltage Regulator** 

## **ELECTRICAL CHARACTERISTICS** (TA = 25 ° C unless otherwise noted, VF = 1.2 V Max. @ IF = 200 mA for all types) 

|**Device***(Note 3)|**Device**<br>**Marking**|**Zener Voltage**(Note 4)|**Zener Voltage**(Note 4)|**Zener Voltage**(Note 4)|**Zener Voltage**(Note 4)|**Zener Impedance**|**Zener Impedance**|**Zener Impedance**|**Leakage Current**|**Leakage Current**|**IZM**|
|---|---|---|---|---|---|---|---|---|---|---|---|
|||**VZ (Volts)**|||**@ IZT**|**ZZT @ IZT**|**ZZK @ IZK**||**IR @ VR**|||
|||**Min**|**Nom**|**Max**|**mA**|**�**|**�**|**mA**|**�A**|**Volts**|**mA(dc)**|
|1SMA5913BT3G<br>1SMA5914BT3G<br>1SMA5915BT3G<br>1SMA5916BT3G|813B<br>814B<br>815B<br>816B|3.13<br>3.42<br>3.70<br>4.08|3.3<br>3.6<br>3.9<br>4.3|3.47<br>3.78<br>4.10<br>4.52|113.6<br>104.2<br>96.1<br>87.2|10<br>9.0<br>7.5<br>6.0|500<br>500<br>500<br>500|1.0<br>1.0<br>1.0<br>1.0|50<br>35.5<br>12.5<br>2.5|1.0<br>1.0<br>1.0<br>1.0|455<br>417<br>385<br>349|
|1SMA5917BT3G<br>1SMA5918BT3G<br>1SMA5919BT3G<br>1SMA5920BT3G|817B<br>818B<br>819B<br>820B|4.46<br>4.84<br>5.32<br>5.89|4.7<br>5.1<br>5.6<br>6.2|4.94<br>5.36<br>5.88<br>6.51|79.8<br>73.5<br>66.9<br>60.5|5.0<br>4.0<br>2.0<br>2.0|500<br>350<br>250<br>200|1.0<br>1.0<br>1.0<br>1.0|2.5<br>2.5<br>2.5<br>2.5|1.5<br>2.0<br>3.0<br>4.0|319<br>294<br>268<br>242|
|1SMA5921BT3G<br>1SMA5922BT3G<br>1SMA5923BT3G<br>1SMA5924BT3G|821B<br>822B<br>823B<br>824B|6.46<br>7.12<br>7.79<br>8.64|6.8<br>7.5<br>8.2<br>9.1|7.14<br>7.88<br>8.61<br>9.56|55.1<br>50<br>45.7<br>41.2|2.5<br>3.0<br>3.5<br>4.0|200<br>400<br>400<br>500|1.0<br>0.5<br>0.5<br>0.5|2.5<br>2.5<br>2.5<br>2.5|5.2<br>6.0<br>6.5<br>7.0|221<br>200<br>183<br>165|
|1SMA5925BT3G<br>1SMA5926BT3G<br>1SMA5927BT3G<br>1SMA5928BT3G|825B<br>826B<br>827B<br>828B|9.5<br>10.45<br>11.4<br>12.35|10<br>11<br>12<br>13|10.5<br>11.55<br>12.6<br>13.65|37.5<br>34.1<br>31.2<br>28.8|4.5<br>5.5<br>6.5<br>7.0|500<br>550<br>550<br>550|0.25<br>0.25<br>0.25<br>0.25|2.5<br>0.5<br>0.5<br>0.5|8.0<br>8.4<br>9.1<br>9.9|150<br>136<br>125<br>115|
|1SMA5929BT3G<br>1SMA5930BT3G<br>1SMA5931BT3G<br>1SMA5932BT3G|829B<br>830B<br>831B<br>832B|14.25<br>15.2<br>17.1<br>19|15<br>16<br>18<br>20|15.75<br>16.8<br>18.9<br>21|25<br>23.4<br>20.8<br>18.7|9.0<br>10<br>12<br>14|600<br>600<br>650<br>650|0.25<br>0.25<br>0.25<br>0.25|0.5<br>0.5<br>0.5<br>0.5|11.4<br>12.2<br>13.7<br>15.2|100<br>94<br>83<br>75|
|1SMA5933BT3G<br>1SMA5934BT3G<br>1SMA5935BT3G<br>1SMA5936BT3G|833B<br>834B<br>835B<br>836B|20.9<br>22.8<br>25.65<br>28.5|22<br>24<br>27<br>30|23.1<br>25.2<br>28.35<br>31.5|17<br>15.6<br>13.9<br>12.5|17.5<br>19<br>23<br>26|650<br>700<br>700<br>750|0.25<br>0.25<br>0.25<br>0.25|0.5<br>0.5<br>0.5<br>0.5|16.7<br>18.2<br>20.6<br>22.8|68<br>63<br>56<br>50|
|1SMA5937BT3G<br>1SMA5938BT3G<br>1SMA5939BT3G<br>1SMA5940BT3G|837B<br>838B<br>839B<br>840B|31.35<br>34.2<br>37.05<br>40.85|33<br>36<br>39<br>43|34.65<br>37.8<br>40.95<br>45.15|11.4<br>10.4<br>9.6<br>8.7|33<br>38<br>45<br>53|800<br>850<br>900<br>950|0.25<br>0.25<br>0.25<br>0.25|0.5<br>0.5<br>0.5<br>0.5|25.1<br>27.4<br>29.7<br>32.7|45<br>42<br>38<br>35|
|1SMA5941BT3G<br>1SMA5942BT3G<br>1SMA5943BT3G<br>1SMA5945BT3G|841B<br>842B<br>843B<br>845B|44.65<br>48.45<br>53.2<br>64.6|47<br>51<br>56<br>68|49.35<br>53.55<br>58.8<br>71.4|8.0<br>7.3<br>6.7<br>5.5|67<br>70<br>86<br>120|1000<br>1100<br>1300<br>1700|0.25<br>0.25<br>0.25<br>0.25|0.5<br>0.5<br>0.5<br>0.5|35.8<br>38.8<br>42.6<br>51.7|32<br>29<br>27<br>22|



3. Tolerance and Voltage Regulation Designation − The type number listed indicates a tolerance of ± 5%. 

4. VZ limits are to be guaranteed at thermal equilibrium. 

- Include SZ-prefix devices where applicable. 

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**2** 

**1SMA59xxBT3G Series, SZ1SMA59xxBT3G Series** 

## **RATING AND TYPICAL CHARACTERISTIC CURVES (TA = 25** ° **C)** 

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4 100<br>3.2<br>10<br>2.4<br>T L<br>1.6<br>1<br>0.8<br>T A<br>0 0.1<br>0 25 50 75 100 125 150 0 2 4 6 8 10<br>T, TEMPERATURE (°C) VZ, ZENER VOLTAGE (VOLTS)<br>IZ, ZENER CURRENT (mA)<br>PD, MAXIMUM POWER DISSIPATION (WATTS)<br>**----- End of picture text -----**<br>


**Figure 1. Steady State Power Derating** 

**Figure 2. VZ − 3.3 thru 10 Volts** 

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100 10<br>8 V Z  @ I ZT<br>6<br>10<br>4<br>2<br>1<br>0<br>-2<br>0.1 -4<br>0 10 20 30 40 50 60 70 80 2 4 6 8 10 12<br>VZ, ZENER VOLTAGE (VOLTS) VZ, ZENER VOLTAGE (VOLTS)<br>Figure 3. VZ = 12 thru 68 Volts Figure 4. Zener Voltage − 3.3 to 12 Volts<br>100<br>70 VZ @ IZT 100<br>IZ(dc) = 1 mA<br>50<br>30<br>10 10 mA<br>20<br>IZ(rms) = 0.1 IZ(dc)<br>20 mA<br>10<br>10 20 30 50 70 100 10 100<br>VZ, ZENER VOLTAGE (VOLTS) VZ, ZENER VOLTAGE (VOLTS)<br>°<br>, ZENER CURRENT (mA)<br>IZ<br>, TEMPERATURE COEFFICIENT (mV/  C)<br>VZ<br>θ<br>°<br>, TEMPERATURE COEFFICIENT (mV/  C) ZZ, DYNAMIC IMPEDANCE (OHMS)<br>VZ<br>θ<br>**----- End of picture text -----**<br>


**Figure 5. Zener Voltage − 12 to 68 Volts** 

**Figure 6. Effect of Zener Voltage** 

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**3** 

**1SMA59xxBT3G Series, SZ1SMA59xxBT3G Series** 

## **RATING AND TYPICAL CHARACTERISTIC CURVES (TA = 25** ° **C)** 

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1000 10<br>NONREPETITIVE, EXPONENTIAL<br>MEASURED @ PULSE WAVEFORM, TJ = 25°C<br>ZERO BIAS<br>1<br>MEASURED @<br>100 VZ/2<br>0.1<br>TJ = 25°C<br>10 0.01<br>10 100 0.01 0.1 1 10<br>BREAKDOWN VOLTAGE (VOLTS) TP, PULSE WIDTH (ms)<br>Figure 7. Capacitance Curve Figure 8. Typical Pulse Rating Curve<br>120 120<br>100 ≤ 10 �s TPW (IA = 25D) IS DEFINED AS THE°C 100 8/20 AS DEFINED BY ANSI C62.1�s WAVEFORM<br>POINT WHERE THE PEAK CURRENT<br>PEAK VALUE DECAYS TO 50% OF Ipp. 0.9 IPEAK AND IEC 801-5.<br>80 I 80<br>ppm<br>60 HALF VALUE - Ipp/2 60 0.5 IPEAK<br>40 40<br>10/1000 �s WAVEFORM<br>AS DEFINED BY R.E.A.<br>20 20<br>t d<br>0.1 IPEAK T = 8 �s<br>0 0<br>0 1 2 3 4 5 0 0.02 0.04 0.06 0.08 0.1<br>t, TIME (ms) T t, TIME (ms)<br>20 �s<br>, PEAK POWER (kW)<br>C, CAPACITANCE (pF) Ppk<br>CURRENT (%)<br>Ippm, PEAK PULSE<br>Ippm, PEAK PULSE CURRENT (%)<br>**----- End of picture text -----**<br>


**Figure 9. Pulse Waveform** 

**Figure 10. Pulse Waveform** 

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**4** 

MECHANICAL CASE OUTLINE **PACKAGE DIMENSIONS** 

**SMA** CASE 403D ISSUE H 

STYLE 1 STYLE 2 **SCALE 1:1** 

DATE 23 SEP 2015 

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HE<br>NOTES:<br>1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M,<br>E 1982.<br>2. CONTROLLING DIMENSION: INCH.<br>3. DIMENSION b SHALL BE MEASURED WITHIN DIMENSION L.<br>=<br>MILLIMETERS INCHES<br>DIM MIN NOM MAX MIN NOM<br>b D A 1.97 2.10 2.20 0.078 0.083<br>A1 0.05 0.10 0.20 0.002 0.004<br>b 1.27 1.45 1.63 0.050 0.057<br>c 0.15 0.28 0.41 0.006 0.011<br>i POLARITY INDICATOR D 2.29 2.60 2.92 0.090 0.103<br>OPTIONAL AS NEEDED Ep EREEEES E 4.06 4.32 4.57 0.160 0.170<br>(SEE STYLES) H E 4.83 5.21 5.59 0.190 0.205<br>L 0.76 1.14 1.52 0.030 0.045<br>GENERIC<br>A MARKING DIAGRAM*<br>A1 xxxx xxxx<br>fe L c [ee] ou AYWW AYWW<br>STYLE 1 STYLE 2<br>SOLDERING FOOTPRINT*<br>xxxx = Specific Device Code<br>4.000 A = Assembly Location<br>0.157 Y = Year<br>WW = Work Week<br>= Pb−Free Package<br>2.000 *This information is generic. Please refer to<br>0.079 device data sheet for actual part marking.<br>Pb−Free indicator, “G” or microdot “ ”,<br>may or may not be present.<br>E E<br>2.000<br>an |<br>0.079<br>SCALE 8:1 mm<br>(—) inches<br>**----- End of picture text -----**<br>


|**DIM**|**MILLIMETERS**|**MILLIMETERS**|**MILLIMETERS**|**INCHES**|**INCHES**|**INCHES**|
|---|---|---|---|---|---|---|
||**MIN**|**NOM**|**MAX**|**MIN**|**NOM**|**MAX**|
|**A**|1.97|2.10|2.20|0.078|0.083|0.087|
|**A1**<br>EREEEES|0.05<br>EREEEES|0.10<br>EREEEES|0.20<br>EREEEES|0.002<br>EREEEES|0.004<br>EREEEES|0.008<br>EREEEES|
|**b**<br>EREEEES|1.27<br>EREEEES|1.45<br>EREEEES|1.63<br>EREEEES|0.050<br>EREEEES|0.057<br>EREEEES|0.064<br>EREEEES|
|**c**<br>EREEEES|0.15<br>EREEEES|0.28<br>EREEEES|0.41<br>EREEEES|0.006<br>EREEEES|0.011<br>EREEEES|0.016<br>EREEEES|
|**D**<br>EREEEES|2.29<br>EREEEES|2.60<br>EREEEES|2.92<br>EREEEES|0.090<br>EREEEES|0.103<br>EREEEES|0.115<br>EREEEES|
|**E**<br>EREEEES|4.06<br>EREEEES|4.32<br>EREEEES|4.57<br>EREEEES|0.160<br>EREEEES|0.170<br>EREEEES|0.180<br>EREEEES|
|**HE**<br>EREEEES|4.83<br>EREEEES|5.21<br>EREEEES|5.59<br>EREEEES|0.190<br>EREEEES|0.205<br>EREEEES|0.220<br>EREEEES|
|**L**|0.76|1.14|1.52|0.030|0.045|0.060|



STYLE 1: STYLE 2: PIN 1. CATHODE (POLARITY BAND) NO POLARITY 2. ANODE 

*For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. 

Electronic versions are uncontrolled except when accessed directly from the Document Repository. **DOCUMENT NUMBER: 98AON04079D** Printed  versions are uncontrolled  except when stamped  “CONTROLLED COPY” in red. **DESCRIPTION: SMA PAGE 1 OF 1** ~~ee~~ ON Semiconductor and          are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. ON Semiconductor does not convey any license under its patent rights nor the rights of others. 

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