Zener diodes are crucial components for voltage regulation and surge protection in electronic circuits. Selecting the appropriate Zener diode ensures circuit stability and longevity, preventing damage from voltage fluctuations. Understanding key specifications will help you find the perfect component for your electronic projects.
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Discover now our comparison of the best Zener Diodes. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Zener Diodes are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Zener Diodes in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.
No. 1
BOJACK 30 Values 600 pcs 1W Zener Diodes Assortment Kit
- BOJACK 30 Values 600 pcs 1W Zener Diodes Assortment kit with different voltage.
- Zener Diodes : IN4727A (3V),IN4728A (3.3V),IN4729A (3.6V),IN4730A (3.9V),IN4731A (4.3V),IN4732A (4.7V),IN4733A (5.1V),IN4734A (5.6V),IN4735A (6.2V),IN4736A (6.8V),IN4737A (7.5V),IN4738A (8.2V),IN4739A (9.1V),IN4740A (10V),IN4741A (11V),IN4742A...
- The diode assorted product is easy to store ,Use an anti-static bag with a clear mark for packaging,not easy to damage.
- Lead-Free / RoHS Compliant Electronics Component.
- This product is widely used in product development, student experiments, maintenance, production, etc.
SaleNo. 2
Chanzon 30 Values 300pc 1W Zener Diode Assorted Kit (3V 3.3V 3.6V 3.9V 4.3V 4.7V 5.1V 5.6V 6.2V 6.8V 7.5V 8.2V...
- 1 Watt Zener Diodes Bag (Pack of 30 Values, Each 10 Pieces, Total 300 Pieces)
- Lead-Free / RoHS Compliant Electronics Component / DO-41 Through Hole
- 1N4727A 1N4727 3Volt / 1N4728A 1N4728 3.3Volt / 1N4729A 1N4729 3.6Volt / 1N4730A 1N4730 3.9Volt / 1N4731A 1N4731 4.3Volt / 1N4732A 1N4732 4.7Volt / 1N4733A 1N4733 5.1Volt / 1N4734A 1N4734 5.6Volt / 1N4735A 1N4735 6.2Volt / 1N4736A 1N4736 6.8Volt
- 1N4737A 1N4737 7.5Volt / 1N4738A 1N4738 8.2Volt / 1N4739A 1N4739 9.1Volt / 1N4740A 1N4740 10Volt / 1N4741A 1N4741 11Volt / 1N4742A 1N4742 12Volt / 1N4743A 1N4743 13Volt / 1N4744A 1N4744 15Volt / 1N4745A 1N4745 16Volt / 1N4746A 1N4746 18Volt
- 1N4747A 1N4747 20Volt / 1N4748A 1N4748 22Volt / 1N4749A 1N4749 24Volt / 1N4750A 1N4750 27Volt / 1N4751A 1N4751 30Volt / 1N4752A 1N4752 33Volt / 1N4753A 1N4753 36Volt / 1N4754A 1N4754 39Volt / 1N4755A 1N4755 43Volt / 1N4756A 1N4756 47Volt
No. 3
25 Values 250pcs 1W Zener Diodes Assortment Kit 3V 3.3V 3.6V 3.9V 4.3V 4.7V 5.1V 5.6V 6.2V 6.8V 7.5V 8.2V 9.1V...
- ✔ Package List: 250PCS* Zener Diodes.25values 10pcs for each, total 250pcs.3V0, 3V3, 3V6, 3V9,4V3, 4V7, 5V1, 5V6, 6V2, 6V8, 7V5, 8V2, 9v1, 10V, 12V, 13V, 15V, 16V, 18V, 20V, 22V, 24V, 27V ,30V,33V
- ✔ Zener Diodes Different Voltage.1N4727A 1N4727(3V). 1N4728A 1N4728(3.3V). 1N4729A 1N4729(3.6V). 1N4730A 1N4730(3.9V). 1N4731A 1N4731(4.3V). 1N4732A 1N4732(4.7V). 1N4733A 1N4733(5.1V). 1N4734A 1N4734(5.6V). 1N4735A 1N4735(6.2V). 1N4736A 1N4736(6.8V...
- ✔ 1W Zener Diodes Assortment kit is widely used in product development, student experiments, maintenance, production, etc
- ✔ Diode assorted have varying voltage and current ratings, making them suitable for a wide range of applications, including power supplies, rectification, signal conditioning, and protection circuits in electronic devices and systems
- ✔ Zener Diodes:Compliant Electronics Component / DO-41 Through Hole.Easy to store,Use an anti-static bag,not easy to damage
No. 4
Chanzon 34 Values 0.5W Zener Diode Assorted Kit (2V 2.2V 2.4V 2.7V 3V 3.3V 3.6V 3.9V 4.3V 4.7V 5.1V 5.6V 6.2V...
- 0.5 Watt Zener Diodes Assortment Set (Pack of 34 Values, Each 10 Pieces, Total 340 Pieces)
- Lead-Free / RoHS Compliant Electronics Component / DO-35 Through Hole
- See Picture 4-7 for Specifications Datasheet
- BZX55C2V0 BZX55C2V2 BZX55C2V4 BZX55C2V7 BZX55C3V0 BZX55C3V3 BZX55C3V6 BZX55C3V9 BZX55C4V3 BZX55C4V7 BZX55C5V1 BZX55C5V6 BZX55C6V2 BZX55C6V8 BZX55C7V5 BZX55C8V2 BZX55C9V1 BZX55C10 BZX55C11 BZX55C12 BZX55C13 BZX55C15 BZX55C16 BZX55C18 BZX55C20 BZX55C...
- Zener Voltage: 2 / 2.2 / 2.4 / 2.7 / 3 / 3.3 / 3.6 / 3.9 / 4.3 / 4.7 / 5.1 / 5.6 / 6.2 / 6.8 / 7.5 / 8.2 / 9.1 / 10 / 11 / 12 / 13 / 15 / 16 / 18 / 20 / 22 / 24 / 27 / 30 / 33 / 36 / 39 / 43 / 47 Volts
No. 5
35 Values 0.5W Zener Diode Assorted Kit (2V 2.2V 2.4V 2.7V 3V 3.3V 3.6V 3.9V 4.3V 4.7V 5.1V 5.6V 6.2V 6.8V...
- 0.5 Watt Zener Diodes Assortment Set (Pack of 35 Values, Each 10 Pieces, Total 350 Pieces)
- Lead-Free / RoHS Compliant Electronics Component / DO-35 Through Hole
- BZX55C2V0 BZX55C2V2 BZX55C2V4 BZX55C2V7 BZX55C3V0 BZX55C3V3 BZX55C3V6 BZX55C3V9 BZX55C4V3 BZX55C4V7 BZX55C5V1 BZX55C5V6 BZX55C6V2 BZX55C6V8 BZX55C7V5 BZX55C8V2 BZX55C9V1 BZX55C10 BZX55C11 BZX55C12 BZX55C13 BZX55C15 BZX55C16 BZX55C18 BZX55C20 BZX55C...
- Zener Voltage: 2 / 2.2 / 2.4 / 2.7 / 3 / 3.3 / 3.6 / 3.9 / 4.3 / 4.7 / 5.1 / 5.6 / 6.2 / 6.8 / 7.5 / 8.2 / 9.1 / 10 / 11 / 12 / 13 / 15 / 16 / 18 / 20 / 22 / 24 / 27 / 30 / 33 / 36 / 39 / 43 / 47 / 51 Volts
- Application:This Product is Widely Used for Many Electronic Projects Hobbies and Repairs, Radios Powers Supplies and other Devices,Product Development,Student Experiments,Maintenance, Production etc
No. 6
AEDIKO 14 Value 140pcs 1W Zener Diodes Assortment Kit 3.3V 3.9V 4.7V 5.1V 6.2V 6.8V 8.2V 10V 12V 15V 16V 18V...
- 1 Watt Zener Diodes Assortment Kit (Pack of 14 Values, Each 10 Pieces, Total 140 Pieces)
- Lead-Free / RoHS Compliant Electronics Component / DO-41 Through Hole
- Diodes Range: 3.3V: 1N4728A 1N4728;3.9V: 1N4730A 1N4730;4.7V:1N4732A 1N4732; 5.1V:1N4733A 1N4733; 6.2V:1N4735A 1N4735; 6.8V: 1N4736A 1N4736; 8.2V: 1N4738A 1N4738; 10V:1N4740A 1N4740; 12V:1N4742A 1N4742;15V:1N4744A 1N4744;16V:1N4745A 1N4745; 18V:1N4746A...
- Clear Mark: The Diode Assorted Product is Easy to Store ,With a Clear Mark for Packaging,NOT Easy to Damage
- Application:This Product is Widely Used for Many Electronic Projects Hobbies and Repairs, Radios Powers Supplies and other Devices,Product Development,Student Experiments,Maintenance, Production etc.
No. 7
BOJACK 1N5349B 5W 12V Power Zener Diodes 1N5349 5 Watt 12 Volt Axial Diodes T-18 (Pack of 30)
- Product Type：Zener Diode
- P/N: 1N5349B
- V(z): 12V
- Power: 5W
- Package Quantity: 30PCS
No. 8
AEDIKO 27 Value 270pcs 1/2W Zener Diodes Assortment Kit 2.4V 2.7V 3.0V 3.3V 3.6V 3.9V 4.3V 4.7V 5.1V 5.6V 6.2V...
- 1/2 Watt Zener Diodes Assortment Kit (Pack of 27 Values, Each 10 Pieces, Total 270 Pieces)
- High Quality: Zener Diodes Low Leakage, Forward Voltage Drop, High Efficiency and Low Power Loss
- Lead-Free / RoHS Compliant Electronics Component / DO-41 Through Hole
- Zener Voltage: 2.4V 2.7V 3.0V 3.3V 3.6V 3.9V 4.3V 4.7V 5.1V 5.6V 6.2V 6.8V 7.5V 8.2V 9.1V 10V 12V 13V 15V 16V 18V 20V 22V 24V 27V 30V 33V
- Application:This Product is Widely Used for Many Electronic Projects Hobbies and Repairs, Radios Powers Supplies and other Devices,Product Development,Student Experiments,Maintenance, Production etc.
No. 9
ALLECIN 20Values Diodes Kit 1N4001 1N4002 1N4003 1N4004 1N4005 1N4006 1N4007 1N4148 1N5404 1N5406 1N5408 RL...
- ALLECIN Diodes Assortment Kit Contain Rectifier Fast Recovery Schottky Switching Diode - Reliable quality & Stable performance.
- 1N4001 / IN4001 (1A 50V) ; 1N4002 / IN4002 (1A 100V) ; 1N4003 / IN4003 (1A 200V) ; 1N4004 / IN4004 (1A 400V) ; 1N4005 / IN4005 (1A 600V) ; 1N4006 / IN4006 (1A 800V) ; 1N4007 / IN4007 (1A 1000V) ; 1N4148 / IN4148 (200mA 100V) ;
- 1N5404 / IN5404 (3A 400V) ; 1N5406 / IN5406 (3A 600V) ; 1N5408 / IN5408 (3A 1000V) ; 1N5817 / IN5817 (1A 20V) ; 1N5819 / IN5819 (1A 40V) ; 1N5822 / IN5822 (3A 40V) ; RL207 (2A 1000V) ; UF4007 (1A 1000V) ; FR107 (1A 1000V) ; FR207 (2A 1000V) ; 15SQ045 (15A...
- Features & Advantages : Stable performance, circuit protection, strong corrosion resistance, good high temperature resistance.
- Humanized packaging for easy storage and use. # Please confirm the model, amp and volt before purchasing.
No. 10
MTDELE 600Pcs 30 Values 1W Zener Diodes Kit 3 - 47V Assortment Set
- MTDELE 600Pcs 30 Values 1W Zener Diodes Kit 3 - 47V Assortment Set
- Zener Diodes：IN4727A (3V)/IN4728A (3.3V)/IN4729A (3.6V)/IN4730A (3.9V)/IN4731A (4.3V)/IN4732A (4.7V)/IN4733A (5.1V)/IN4734A (5.6V)/IN4735A (6.2V)/IN4736A (6.8V)
- Zener Diodes：IN4737A (7.5V)/IN4738A (8.2V)/IN4739A (9.1V)/IN4740A (10V)/IN4741A (11V)/IN4742A (12V)/IN4743A (13V)/IN4744A (15V)/IN4745A (16V)/IN4746A (18V)
- Zener Diodes：IN4747A (20V)/IN4748A (22V)/IN4749A (24V)/IN4750A (27V)/IN4751A (30V)/IN4752A (33V)/IN4753A (36V)/IN4754A (39V)/IN4755A (43V)/IN4756A (47V)
- Compatible with for product development student experiments maintenance production etc
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Last update on 2026-04-16 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Zener Diodes
Key Factors for Choosing a Zener Diode
When selecting a Zener diode, consider the following essential factors:- Zener Voltage (Vz): This is the primary specification, indicating the stable voltage the diode will maintain when reverse-biased. Ensure this voltage matches your circuit's required regulation point. Common values range from a few volts to over 100 volts.
- Power Dissipation (Pd): This rating specifies the maximum power the diode can safely dissipate without damage. Calculate the expected power dissipation in your circuit (Voltage x Current) and choose a diode with a Pd rating significantly higher than this value to ensure reliability and prevent overheating.
- Tolerance: Zener diodes have a tolerance percentage, indicating the acceptable deviation from their rated Zener voltage. For precise applications, opt for diodes with lower tolerance (e.g., 1% or 5%) for more accurate voltage regulation.
Frequently Asked Questions
What is the main function of a Zener diode?
The primary function of a Zener diode is to maintain a constant voltage across itself when operated in its reverse breakdown region. This characteristic makes it ideal for voltage regulation and voltage reference applications in electronic circuits.
How does Zener voltage (Vz) affect my circuit?
The Zener voltage (Vz) determines the specific voltage that the diode will regulate. You must choose a Zener diode with a Vz that matches the desired stable output voltage for your application. Using an incorrect Vz will lead to improper circuit operation.
Why is power dissipation important for Zener diodes?
Power dissipation (Pd) indicates how much heat the diode can safely handle. If the power dissipated by the diode in your circuit exceeds its Pd rating, it can overheat and fail. Always select a diode with a Pd rating comfortably above your circuit's expected power dissipation.
What is the significance of Zener diode tolerance?
Tolerance specifies the maximum allowable variation from the stated Zener voltage. A lower tolerance means the diode will provide a more precise and stable regulated voltage. For critical voltage regulation needs, choose diodes with tighter tolerances.
