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1N4742A,113
Zener Single Diode, 12 V, 1 W, DO-41 (DO-204AL), 2 Pins, 200 °C, Through Hole
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- Manufacturer: NEXPERIA
- Product type: Zener Single Diodes
- Zener Voltage Vz Typ:12V; Power Dissipation Pd:1W; Diode Case Style:DO-41 (DO-204AL); Zener Tolerance ±:5%; No. of Pins:2Pins; Operating Temperature Max:200°C; Product Range:1N47xxA Series;
- SVHC: No SVHC (25-Jun-2025)
- No. of Pins: 2Pins
- Product Range: 1N47xxA
- Qualification: -
- Diode Mounting: Through Hole
- Diode Case Style: DO-41 (DO-204AL)
- Power Dissipation: 1W
- Zener Voltage Nom: 12V
- Operating Temperature Max: 200°C
| Delivery and price | |
|---|---|
| Units per pack | 5000 |
| Price | 0.064 € |
| Current stock | 1000+ |
| Lead time | 30 days |
Datasheet
## **1N4728A to 1N4749A** ## **Voltage regulator diodes** **Rev. 02 — 30 October 2009** ## **Product data sheet** ## **1.** ## **1.1 General description** Low voltage regulator diodes in hermetically sealed small SOD66 (DO-41) glass packages. The series consists of 22 types with nominal working voltages from 3.3 to 24 V. ## **1.2 Features** - I Total power dissipation: max. ≤ 1000 mW - I Working voltage range: nom. 3.3 V to 24 V - I Tolerance series: ±5 % - I Small hermetically sealed glass package ## **1.3 Applications** I Low voltage stabilizers ## **1.4 Quick reference data** |**Table 1.**|**Quick reference data**|||||| |---|---|---|---|---|---|---| |**Symbol**|**Parameter**|**Conditions**|**Min**|**Typ**|**Max**|**Unit**| |VF|forward voltage|IF= 200 mA|-|-|1.2|V| |Ptot|total power dissipation||-|-|1000|mW| ## **2. Pinning information** |**ormation**|**ormation**| |---|---| |**Table 2.**<br>**Pinning**|| |**Pin**<br>**Description**<br>**Simplifed outline**<br>**Graphic symbol**|| |1<br>cathode<br>[1]<br>2<br>anode<br>a<br>k<br>1|006aaa152<br>2<br>| - [1] The marking band indicates the cathode. **==> picture [211 x 101] intentionally omitted <==** **1N4728A to 1N4749A** **NXP Semiconductors** **Voltage regulator diodes** ## **3. Ordering information** ## **Table 3. Ordering information** |**Type number**|**Package**|**Package**|**Package**| |---|---|---|---| ||**Name**|**Description**|**Version**| |1N4728A to<br>1N4749~~A~~<br>[1]|-<br>hermetically sealed glass package; axial leaded;<br>2 leads<br>SOD66||| |[1]<br>The series consists of 22 types with nominal working voltages from 3.3 V to 24 V.|||| ## **4. Marking** |**Table 4.**|**Marking codes**|| |---|---|---| |**Type number**||**Marking code**| |1N4728A|to 1N4749A|The diodes are type branded.| ## **5. Limiting values** ## **Table 5. Limiting values** In accordance with the Absolute Maximum Rating System (IEC 60134). |**Symbol**|**Parameter**|**Conditions**|**Min**|**Max**||**Unit**| |---|---|---|---|---|---|---| |IF|forward current||-|500||mA| |IZ|working current||-|see||| |||||T<br>ab<br>le|8|| |IZSM|non-repetitive peak reverse||-|see||| ||current|||T<br>ab<br>le|8|| |Ptot|total power dissipation|Tamb= 50°C|-|1000||mW| |Tj|junction temperature||−65|+200||°C| |Tstg|storage temperature||−65|+200||°C| © NXP B.V. 2009. All rights reserved. 1N4728A_SER_2 **Product data sheet** **Rev. 02 — 30 October 2009** **2 of 10** **1N4728A to 1N4749A** **NXP Semiconductors** **Voltage regulator diodes** ## **6. Thermal characteristics** **==> picture [397 x 306] intentionally omitted <==** **----- Start of picture text -----**<br> Table 6. Thermal characteristics<br>Symbol Parameter Conditions Min Typ Max Unit<br>Rth(j-t) thermal resistance from lead length 4 mm - - 110 K/W<br>junction to tie-point<br>006aab843<br>10 [3]<br>Rth(j-t)<br>(K/W)<br>δ = 1<br>10 [2]<br>0.75<br>0.50<br>0.33<br>0.20<br>0.10<br>0.05<br>10<br>0.02<br>0.01<br>0<br>1<br>10 [−][1] 1 10 10 [2] 10 [3] 10 [4] tp (ms) 10 [5]<br>Fig 1. Thermal resistance from junction to tie-point as a function of pulse duration;<br>lead length 4 mm<br>**----- End of picture text -----**<br> ## **7. Characteristics** ## **Table 7. Characteristics** ## Tj = 25 ° |**Symbol**|**Parameter**|**Conditions**|**Min**|**Typ**|**Max**|**Unit**| |---|---|---|---|---|---|---| |VF|forward voltage|IF= 200 mA|-|-|1.2|V| © NXP B.V. 2009. All rights reserved. 1N4728A_SER_2 **Rev. 02 — 30 October 2009** **Product data sheet** **3 of 10** **1N4728A to 1N4749A** **NXP Semiconductors** **Voltage regulator diodes** **Table 8. Characteristics per type** Tj = 25 °C unless otherwise specified. |**Type**<br>**number**|**Working**<br>**voltage**<br>**VZ (V**~~**)**~~<br>**[1]**|**Test**<br>**current**<br>**Itest**<br>**(mA)**|**Differential**<br>**resistance**<br>**rdif (**Ω**)**|**Differential**<br>**resistance**<br>**rdif (**Ω**)**|**Differential**<br>**resistance**<br>**rdif (**Ω**)**|**Reverse current**<br>**IR (**µ**A)**|**Reverse current**<br>**IR (**µ**A)**|**Working**<br>**current**<br>**IZ (mA)**|**Non-repetitive**<br>**peak reverse**<br>**current**<br>**IZSM (mA**~~**)**~~<br>**[2]**| |---|---|---|---|---|---|---|---|---|---| ||**at Itest**||**at Itest**|**at IZ**|**IZ (mA)**||||| ||**Nom**||**Max**|**Max**||**Max**|**VR (V)**|**Max**|**Max**| |1N4728A|3.3<br>76||10<br>400<br>1|||100<br>1<br>276<br>1380|||| |1N4729A|3.6<br>69||10<br>400<br>1|||100<br>1<br>252<br>1260|||| |1N4730A|3.9<br>64||9<br>400<br>1|||50<br>1<br>234<br>1190|||| |1N4731A|4.3<br>58||9<br>400<br>1|||10<br>1<br>217<br>1070|||| |1N4732A|4.7<br>53||8<br>500<br>1|||10<br>1<br>193<br>970|||| |1N4733A|5.1<br>49||7<br>550<br>1|||10<br>1<br>178<br>890|||| |1N4734A|5.6<br>45||5<br>600<br>1|||10<br>2<br>162<br>810|||| |1N4735A|6.2<br>41||2<br>700<br>1|||10<br>3<br>146<br>730|||| |1N4736A|6.8<br>37||3.5<br>700<br>1|||10<br>4<br>133<br>660|||| |1N4737A|7.5<br>34||4<br>700<br>0.5|||10<br>5<br>121<br>605|||| |1N4738A|8.2<br>31||4.5<br>700<br>0.5|||10<br>6<br>110<br>550|||| |1N4739A|9.1<br>28||5<br>700<br>0.5|||10<br>7<br>100<br>500|||| |1N4740A|10<br>25||7<br>700<br>0.25|||10<br>7.6<br>91<br>454|||| |1N4741A|11<br>23||8<br>700<br>0.25|||5<br>8.4<br>83<br>414|||| |1N4742A|12<br>21||9<br>700<br>0.25|||5<br>9.1<br>76<br>380|||| |1N4743A|13<br>19||10<br>700<br>0.25|||5<br>9.9<br>69<br>344|||| |1N4744A|15<br>17||14<br>700<br>0.25|||5<br>11.4<br>61<br>304|||| |1N4745A|16<br>15.5||16<br>700<br>0.25|||5<br>12.2<br>57<br>285|||| |1N4746A|18<br>14||20<br>750<br>0.25|||5<br>13.7<br>50<br>250|||| |1N4747A|20<br>12.5||22<br>750<br>0.25|||5<br>15.2<br>45<br>225|||| |1N4748A|22<br>11.5||23<br>750<br>0.25|||5<br>16.7<br>41<br>205|||| |1N4749A|24<br>10.5||25<br>750<br>0.25|||5<br>18.2<br>38<br>190|||| [1] VZ is measured with device at thermal equilibrium while held in clips at 10 mm from body in still air at 25 °C. [2] Half square wave or equivalent sine wave pulse 1/120 second duration superimposed on Itest. © NXP B.V. 2009. All rights reserved. 1N4728A_SER_2 **Rev. 02 — 30 October 2009** **Product data sheet** **4 of 10** **1N4728A to 1N4749A** **NXP Semiconductors** **Voltage regulator diodes** **==> picture [233 x 189] intentionally omitted <==** **----- Start of picture text -----**<br> mbg925<br>300<br>IF<br>(mA)<br>200<br>(1) (2)<br>100<br>0<br>0 0.5 VF (V) 1.0<br>**----- End of picture text -----**<br> **==> picture [58 x 23] intentionally omitted <==** **----- Start of picture text -----**<br> (1) Tj = 200 °C<br>(2) Tj = 25 °C<br>**----- End of picture text -----**<br> **Fig 2. Forward current as a function of forward voltage; typical values** © NXP B.V. 2009. All rights reserved. 1N4728A_SER_2 **Rev. 02 — 30 October 2009** **Product data sheet** **5 of 10** **1N4728A to 1N4749A** **NXP Semiconductors** **Voltage regulator diodes** ## **8. Package outline** **Hermetically sealed glass package; axial leaded; 2 leads** **SOD66** **==> picture [481 x 274] intentionally omitted <==** **----- Start of picture text -----**<br> (1)<br>k a<br>b<br>D L G1 L<br>Dimensions<br>Unit b D G1 L<br>max 0.81 2.6 4.8<br>0 2 4 mm<br>mm nom<br>min 25.4 scale<br>Note<br>1. The marking band indicates the cathode. sod066_po<br>Outline References European Issue date<br>version IEC JEDEC JEITA projection<br>97-06-20<br>SOD66 DO-41<br>09-10-09<br>**----- End of picture text -----**<br> **Fig 3. Package outline SOD66 (DO-41)** © NXP B.V. 2009. All rights reserved. 1N4728A_SER_2 **Rev. 02 — 30 October 2009** **Product data sheet** **6 of 10** **1N4728A to 1N4749A** **NXP Semiconductors** **Voltage regulator diodes** ## **9. Packing information** ## **Table 9. Packing methods** The indicated -xxx are the last three digits of the 12NC ordering code ~~.~~ [1] |**Type number**<br>**Package**|**Description**|**Packing quantity**| |---|---|---| |||**10000**| |1N4728A to<br>1N4749~~A~~<br>[2]<br>SOD66|52 mm tape ammopack, axial|-133| ||52 mm reel pack, axial|-113| - [1] For further information and the availability of packing methods, see Section 11. - [2] The series consists of 22 types with nominal working voltages from 3.3 V to 24 V. © NXP B.V. 2009. All rights reserved. 1N4728A_SER_2 **Rev. 02 — 30 October 2009** **Product data sheet** **7 of 10** **1N4728A to 1N4749A** **NXP Semiconductors** **Voltage regulator diodes** ## **10. Revision history** **Table 10. Revision history** |**Document ID**|**Release date**<br>**Data sheet status**|**Release date**<br>**Data sheet status**|**Change notice**<br>**Supersedes**| |---|---|---|---| |1N4728A_SER_2|20091030<br>Product data sheet||-<br>1N4728A_1| |Modifcations:|**•**|The format of this data sheet has been redesigned to comply with the new identity|| |||guidelines of NXP Semiconductors.|| ||**•**|Legal texts have been adapted to|the new company name where appropriate.| ||**•**|T<br>ab<br>le 5“Limitingv<br>alues”: IZMredefned to IZworking current|| ||**•**|T<br>ab<br>le<br>6: Rth(j-tp)redefned to Rth(j-t)|thermal resistance from junction to tie-point| ||**•**|Figure<br>1: Rth(j-tp)redefned to Rth(j-t)thermal resistance from junction to tie-point|| ||**•**|T<br>ab<br>le 8“Char<br>acter<br>istics pertype”:|IZtestredefned to Itesttest current| ||**•**|Figure 3“P<br>ac<br>kage outline SOD66|(DO-41)”: updated| |1N4728A_1|19960426<br>Product data sheet||-<br>-| © NXP B.V. 2009. All rights reserved. 1N4728A_SER_2 **Rev. 02 — 30 October 2009** **Product data sheet** **8 of 10** **1N4728A to 1N4749A** **NXP Semiconductors** **Voltage regulator diodes** ## **11. Legal information** ## **11.1 Data sheet status** |**Document statu**|**s**<br>**[1]**<br>**[2]**<br>**Product status**<br>**[3]**<br>**Defnition**| |---|---| |Objective [short] data sheet<br>Development<br>This document contains data from the objective specifcation for product development.|| |Preliminary [short] data sheet<br>Qualifcation<br>This document contains data from the preliminary specifcation.|| |Product [short] data sheet<br>Production<br>This document contains the product specifcation.|| [1] Please consult the most recently issued document before initiating or completing a design. [2] [3] The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nxp.com. ## **11.2** **Draft —** The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. **Short data sheet —** A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. ## **11.3 Disclaimers** **General —** Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. **Right to make changes —** NXP Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. **Suitability for use —** NXP Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk. **Applications —** Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. **Limiting values —** the Absolute Maximum Ratings System of IEC 60134) may cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the Characteristics sections of this document is not implied. Exposure to limiting values for extended periods may affect device reliability. **Terms and conditions of sale —** NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms, including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by NXP Semiconductors. In case of any inconsistency or conflict between information in this document and such terms and conditions, the latter will prevail. **No offer to sell or license —** Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. **Export control —** This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from national authorities. **Quick reference data —** The Quick reference data is an extract of the product data given in the Limiting values and Characteristics sections of this document, and as such is not complete, exhaustive or legally binding. ## **11.4 Trademarks** Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. ## **12. Contact information** For more information, please visit: **http://www.nxp.com** **salesaddresses@nxp.com** © NXP B.V. 2009. All rights reserved. 1N4728A_SER_2 **Rev. 02 — 30 October 2009** **Product data sheet** **9 of 10** **1N4728A to 1N4749A** **NXP Semiconductors** **Voltage regulator diodes** ## **13. Contents** |**1**|**Product profle . . . . . . . . . . . . . . . . . . . . . . . . . . 1**| |---|---| |1.1|General description. . . . . . . . . . . . . . . . . . . . . . 1| |1.2|Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1| |1.3|Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . 1| |1.4|Quick reference data. . . . . . . . . . . . . . . . . . . . . 1| |**2**|**Pinning information. . . . . . . . . . . . . . . . . . . . . . 1**| |**3**|**Ordering information . . . . . . . . . . . . . . . . . . . . . 2**| |**4**|**Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2**| |**5**|**Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 2**| |**6**|**Thermal characteristics. . . . . . . . . . . . . . . . . . . 3**| |**7**|**Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . 3**| |**8**|**Package outline . . . . . . . . . . . . . . . . . . . . . . . . . 6**| |**9**|**Packing information. . . . . . . . . . . . . . . . . . . . . . 7**| |**10**|**Revision history. . . . . . . . . . . . . . . . . . . . . . . . . 8**| |**11**|**Legal information. . . . . . . . . . . . . . . . . . . . . . . . 9**| |11.1|Data sheet status . . . . . . . . . . . . . . . . . . . . . . . 9| |11.2|Defnitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9| |11.3|Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9| |11.4|Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9| |**12**|**Contact information. . . . . . . . . . . . . . . . . . . . . . 9**| |**13**|**Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10**| **==> picture [151 x 121] intentionally omitted <==** Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. **© NXP B.V. 2009.** **All rights reserved.** For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com **Date of release: 30 October 2009 Document identifier: 1N4728A_SER_2**
Updated at April 28, 2026
Nexperia is a dedicated global leader in discretes, logic, and MOSFET devices. Built on over half a century of semiconductor expertise and operating independently since 2017, the company produces consistently reliable components at an exceptional volume of 85 billion units annually. With its own manufacturing facilities, Nexperia delivers industry-leading small packages that combine power and thermal efficiency with best-in-class quality, meeting the rigorous standards of the automotive sector. Our extensive Nexperia portfolio is heavily focused on discrete semiconductors, providing engineers with a robust selection of core building blocks. This includes a comprehensive range of diodes and rectifiers, featuring a vast selection of Zener single diodes and Schottky diodes designed for precise voltage regulation and efficient power routing. Additionally, we offer an expansive array of bipolar transistors and single MOSFETs tailored for reliable switching and amplification in demanding applications. Beyond these primary offerings, the lineup extends into specialized circuit protection and passive components. This includes transient voltage suppressor (TVS) diodes, Zener array diodes, and small signal diodes, alongside dual MOSFETs and fast recovery rectifiers. For comprehensive design needs, the selection also encompasses integrated passive filters, common mode chokes, and precision timers and oscillators, ensuring a complete solution for high-performance electronic systems.
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