Image not available
Illustrative purposes only
1N4733A
Zener Single Diode, 5.1 V, 1.3 W, DO-41 (DO-204AL), 2 Pins, 175 °C, Through Hole
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: VISHAY
- Product type: Zener Single Diodes
- Zener Voltage Vz Typ:5.1V; Power Dissipation Pd:1.3W; Diode Case Style:DO-41 (DO-204AL); Zener Tolerance ±:5%; No. of Pins:2Pins; Operating Temperature Max:200°C; Product Range:1N47xxA S
- 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: 1.3W
- Zener Voltage Nom: 5.1V
- Operating Temperature Max: 175°C
| Delivery and price | |
|---|---|
| Units per pack | 5000 |
| Price | 0.031 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**1N4728A to 1N4764A** www.vishay.com ## Vishay Semiconductors ## **Zener Diodes** ## **FEATURES** - Silicon planar power Zener diodes - For use in stabilizing and clipping circuits with high power rating - Standard Zener voltage tolerance is ± 5 % - Compliant to RoHS Directive 2002/95/EC and in accordance to WEEE 2002/96/EC - Halogen-free according to IEC 61249-2-21 definition ## **APPLICATIONS** ## **PRIMARY CHARACTERISTICS** - Voltage stabilization |**PRIMARY CHARACTERISTICS**|**PRIMARY CHARACTERISTICS**|**PRIMARY CHARACTERISTICS**| |---|---|---| |**PARAMETER**|**VALUE**|**UNIT**| |VZrange nom.|3.3 to 100|V| |Test current IZT|2.5 to 76|mA| |VZspecification|Thermal equilibrium|| |Int. construction|Single|| ## **ORDERING INFORMATION** |**ORDERING INFORMATION**|**ORDERING INFORMATION**|**ORDERING INFORMATION**|**ORDERING INFORMATION**| |---|---|---|---| |**DEVICE NAME**|**ORDERING CODE**|**TAPED UNITS PER REEL**|**MINIMUM ORDER QUANTITY**| |1N4728A to 1N4764A|1N4728A to 1N4764A -series-TR|5000 per 13" reel|25 000/box| |1N4728A to 1N4764A|1N4728A to 1N4764A-series-TAP|5000 per ammopack<br>(52 mm tape)|25 000/box| ## **PACKAGE** |**PACKAGE**|**PACKAGE**|**PACKAGE**|**PACKAGE**|**PACKAGE**| |---|---|---|---|---| |**PACKAGE NAME**|**WEIGHT**|**MOLDING COMPOUND**<br>**FLAMMABILITY RATING**|**MOISTURE SENSITIVITY**<br>**LEVEL**|**SOLDERING**<br>**CONDITIONS**| |DO-41|310 mg|UL 94 V-0|MSL level 1<br>(accordingJ-STD-020)|260 °C/10 s at terminals| ## **ABSOLUTE MAXIMUM RATINGS** (Tamb = 25 °C, unless otherwise specified) |**ABSOLUTE MAXIMUM RATINGS**(Tamb = 25 °C, unless otherwise specified)Tamb = 25 °C, unless otherwise specified)amb = 25 °C, unless otherwise specified)= 25 °C, unless otherwise specified), unless otherwise specified)unless otherwise specified)pecified)ecified))|**ABSOLUTE MAXIMUM RATINGS**(Tamb = 25 °C, unless otherwise specified)Tamb = 25 °C, unless otherwise specified)amb = 25 °C, unless otherwise specified)= 25 °C, unless otherwise specified), unless otherwise specified)unless otherwise specified)pecified)ecified))|**ABSOLUTE MAXIMUM RATINGS**(Tamb = 25 °C, unless otherwise specified)Tamb = 25 °C, unless otherwise specified)amb = 25 °C, unless otherwise specified)= 25 °C, unless otherwise specified), unless otherwise specified)unless otherwise specified)pecified)ecified))|**ABSOLUTE MAXIMUM RATINGS**(Tamb = 25 °C, unless otherwise specified)Tamb = 25 °C, unless otherwise specified)amb = 25 °C, unless otherwise specified)= 25 °C, unless otherwise specified), unless otherwise specified)unless otherwise specified)pecified)ecified))|**ABSOLUTE MAXIMUM RATINGS**(Tamb = 25 °C, unless otherwise specified)Tamb = 25 °C, unless otherwise specified)amb = 25 °C, unless otherwise specified)= 25 °C, unless otherwise specified), unless otherwise specified)unless otherwise specified)pecified)ecified))| |---|---|---|---|---| |**PARAMETER**|**TEST CONDITION**|**SYMBOL**|**VALUE**|**UNIT**| |Power dissipation|Valid provided that leads at a distance of 4 mm<br>from case are kept at ambient temperature|Ptot|1300|mW| |Zener current||IZ|PV/VZ|mA| |Junction to ambient air|Valid provided that leads at a distance of 4 mm<br>from case are kept at ambient temperature|RthJA|110|K/W| |Junction temperature||Tj|175|°C| |Storage temperature range||Tstg|- 65 to + 175|°C| |Forward voltage (max.)|IF= 200 mA|VF|1.2|V| Rev. 2.1, 24-Nov-11 Document Number: 85816 **1** For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 **1N4728A to 1N4764A** Vishay Semiconductors **==> picture [59 x 48] intentionally omitted <==** www.vishay.com |**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)|**ELECTRICAL CHARACTERISTICS**(Tamb= 25 °C,unless otherwise specified)| |---|---|---|---|---|---|---|---|---|---| |**PART**<br>**NUMBER**|**ZENER VOLTAGE**<br>**RANGE (1)**|**TEST**<br>**CURRENT**||**REVERSE LEAKAGE**<br>**CURRENT**||**DYNAMIC**<br>**RESISTANCE**||**SURGE**<br>**CURRENT(3)**|**REGULATOR**<br>**CURRENT(2)**| ||**VZ at IZT1**|**IZT1**|**IZT2**|**IR at VR**||**ZZT at IZT1**|**ZZK at IZT2**|**IR**|**IZM**| ||**V**|**mA**|**mA**|**μA**|**V**|Ω||**mA**|**mA**| ||**NOM.**|||**MAX.**||**TYP.**|**MAX.**||**MAX.**| |1N4728A|3.3|76|1|100|1|10|400|1380|276| |1N4729A|3.6|69|1|100|1|10|400|1260|252| |1N4730A|3.9|64|1|50|1|9|400|1190|234| |1N4731A|4.3|58|1|10|1|9|400|1070|217| |1N4732A|4.7|53|1|10|1|8|500|970|193| |1N4733A|5.1|49|1|10|1|7|550|890|178| |1N4734A|5.6|45|1|10|2|5|600|810|162| |1N4735A|6.2|41|1|10|3|2|700|730|146| |1N4736A|6.8|37|1|10|4|3.5|700|660|133| |1N4737A|7.5|34|0.5|10|5|4|700|605|121| |1N4738A|8.2|31|0.5|10|6|4.5|700|550|110| |1N4739A|9.1|28|0.5|10|7|5|700|500|100| |1N4740A|10|25|0.25|10|7.6|7|700|454|91| |1N4741A|11|23|0.25|5|8.4|8|700|414|83| |1N4742A|12|21|0.25|5|9.1|9|700|380|76| |1N4743A|13|19|0.25|5|9.9|10|700|344|69| |1N4744A|15|17|0.25|5|11.4|14|700|304|61| |1N4745A|16|15.5|0.25|5|12.2|16|700|285|57| |1N4746A|18|14|0.25|5|13.7|20|750|250|50| |1N4747A|20|12.5|0.25|5|15.2|22|750|225|45| |1N4748A|22|11.5|0.25|5|16.7|23|750|205|41| |1N4749A|24|10.5|0.25|5|18.2|25|750|190|38| |1N4750A|27|9.5|0.25|5|20.6|35|750|170|34| |1N4751A|30|8.5|0.25|5|22.8|40|1000|150|30| |1N4752A|33|7.5|0.25|5|25.1|45|1000|135|27| |1N4753A|36|7|0.25|5|27.4|50|1000|125|25| |1N4754A|39|6.5|0.25|5|29.7|60|1000|115|23| |1N4755A|43|6|0.25|5|32.7|70|1500|110|22| |1N4756A|47|5.5|0.25|5|35.8|80|1500|95|19| |1N4757A|51|5|0.25|5|38.8|95|1500|90|18| |1N4758A|56|4.5|0.25|5|42.6|110|2000|80|16| |1N4759A|62|4|0.25|5|47.1|125|2000|70|14| |1N4760A|68|3.7|0.25|5|51.7|150|2000|65|13| |1N4761A|75|3.3|0.25|5|56|175|2000|60|12| |1N4762A|82|3|0.25|5|62.2|200|3000|55|11| |1N4763A|91|2.8|0.25|5|69.2|250|3000|50|10| |1N4764A|100|2.5|0.25|5|76|350|3000|45|9| ## **Notes** > (1) Based on DC measurement at thermal equilibrium while maintaining the lead temperature (TL) at 30 °C + 1 °C, 9.5 mm (3/8") from the diode body > (2) Valid provided that electrodes at a distance of 4 mm from case are kept at ambient temperature > (3) tp = 10 ms. Rev. 2.1, 24-Nov-11 Document Number: 85816 **2** For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 **1N4728A to 1N4764A** **==> picture [59 x 48] intentionally omitted <==** www.vishay.com Vishay Semiconductors ## **BASIC CHARACTERISTICS** (Tamb = 25 °C, unless otherwise specified) **==> picture [214 x 152] intentionally omitted <==** **----- Start of picture text -----**<br> W 1.0<br>0.8<br>P<br>tot<br>0.6<br>0.4<br>0.2<br>18481 0 100 T 200 °C<br>amb<br>**----- End of picture text -----**<br> Fig. 1 - Admissible Power Dissipation vs. Ambient Temperature ## **PACKAGE DIMENSIONS** in millimeters (inches): **DO-41** **==> picture [361 x 191] intentionally omitted <==** **----- Start of picture text -----**<br> Cathode identification<br>26 (1.024) min. 4.1 (0.161) max. 26 (1.024) min.<br>94 9368<br>0.86 (0.034) max.<br>2.6 (0.102) max.<br>**----- End of picture text -----**<br> Rev. 2.1, 24-Nov-11 Document Number: 85816 **3** For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 **Legal Disclaimer Notice** Vishay **==> picture [59 x 48] intentionally omitted <==** ## **Disclaimer** ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other disclosure relating to any product. Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special, consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular purpose, non-infringement and merchantability. Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular product with the properties described in the product specification is suitable for use in a particular application. Parameters provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed therein. Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining applications or for any other application in which the failure of the Vishay product could result in personal injury or death. Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk and agree to fully indemnify and hold Vishay and its distributors harmless from and against any and all claims, liabilities, expenses and damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that Vishay or its distributor was negligent regarding the design or manufacture of the part. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 11-Mar-11 www.vishay.com 1
Updated at April 11, 2026
Vishay is a global leader in the manufacturing of discrete semiconductors and passive electronic components. Renowned for its exceptional quality and engineering expertise, the company produces highly reliable solutions that drive innovation across the industrial, automotive, telecommunications, and consumer electronics markets. From advanced factory automation to vehicle electrification, Vishay components provide the foundational building blocks for modern electronic design. The company's expansive portfolio is heavily focused on efficient power management, signal routing, and energy storage. Within its passive component lineup, Vishay is recognized for its extensive array of high-performance capacitors, including robust aluminium electrolytic, film, and polymer variants, alongside highly efficient power inductors. In the realm of discrete semiconductors, Vishay is a premier manufacturer of single and dual MOSFETs, as well as a vast selection of Schottky, Zener, and fast-recovery rectifier diodes designed for demanding power applications. Furthermore, Vishay delivers industry-leading circuit protection and thermal management solutions. With a broad offering of transient voltage suppressors (TVS diodes) and temperature-sensing NTC thermistors, these components are engineered to safeguard sensitive circuitry against both electrical and thermal overstress. By combining this vital mix of advanced discretes and passives, Vishay enables engineers to develop robust, space-saving, and highly resilient electronic systems.
About Novapart
Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 410,000+ components from 500+ manufacturers.
Learn more →Stock Shortage Specialist
When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
Request a quote →Compliant Alternatives
We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →