Best DO-15 Zener Diodes of 2026

Harvey Wall Avatar
Harvey Wall
Last Updated: 2 Feb 2026

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DO-15 Zener Diodes are electronic components that are widely used in various applications such as voltage regulation, surge protection, and signal conditioning. These diodes are designed to stabilise voltage by maintaining a constant voltage level even when the input voltage fluctuates. They come in a cylindrical package with two leads and are available in a range of voltage ratings and power levels. DO-15 Zener Diodes are an essential part of many electronic circuits and are recommended for their reliability and performance.

At a Glance: Our Top Picks

Chanzon 1N4744A 1N4744 Power Zener Diode 1W 15V DO-41 Axial Diodes 1 Watt 15 Volt Cover #TOP 1
Chanzon 1N4744A 1N4744 Power Zener Diode 1W 15V DO-41 Axial Diodes 1 Watt 15 Volt
ftb score rating icon 9.8
20PCS 1N4744A 1N4744 Silicon Planar Power Zener Diode 1W 15V DO-41 Axial Diodes 1 Watt 15 Volt Cover #TOP 2
20PCS 1N4744A 1N4744 Silicon Planar Power Zener Diode 1W 15V DO-41 Axial Diodes 1 Watt 15 Volt
ftb score rating icon 9.7
HUABAN 10PCS 1N5380B 1N5380 Power Zener Diode 5W 120V DO-15 Axial Diodes 5 Watt 120 Volt Cover #TOP 3
HUABAN 10PCS 1N5380B 1N5380 Power Zener Diode 5W 120V DO-15 Axial Diodes 5 Watt 120 Volt
ftb score rating icon 9.5

Top 10 DO-15 Zener Diodes

#TOP 1

Chanzon 1N4744A 1N4744 Power Zener Diode 1W 15V DO-41 Axial Diodes 1 Watt 15 Volt

1N4744A x 100 Pieces
Chanzon 1N4744A 1N4744 Power Zener Diode 1W 15V DO-41 Axial Diodes 1 Watt 15 Volt Cover
(Pack of 100 Pieces) Chanzon 1N4744A 1N4744 Power Zener Diode 1W 15V DO-41 (DO-204AL) Axial Diodes 1 Watt 15 Volt

Features
Lead-Free / RoHS Compliant Electronics Component / Through Hole
IN4744A (4744A) 1Watt - 15 V
Very Sharp Reverse Characteristic / Low Reverse Current Level / Very High Stability
See Picture 2-7 For Specifications Datasheet
Pack In A ESD Bag With Main Specs Label,for Long Time Protection And Indetification.
#TOP 2

20PCS 1N4744A 1N4744 Silicon Planar Power Zener Diode 1W 15V DO-41 Axial Diodes 1 Watt 15 Volt

1N4744A
1N4744A 1W 15V
20PCS 1N4744A 1N4744 Silicon Planar Power Zener Diode 1W 15V DO-41 Axial Diodes 1 Watt 15 Volt Cover
20PCS 1N4744A 1N4744 Silicon Planar Power Zener Diode 1W 15V DO-41 (DO-204AL) Axial Diodes 1 Watt 15 Volt

Features
Lead-Free / RoHS Compliant Electronics Component / Through Hole
Part Number: 1N4744A
Power Dissipation : 1W ; Zener Voltage:15V
Package Quantity: 20PCS
Items Are Pack In A ESD Bag With Main Specs Label
#TOP 3

HUABAN 10PCS 1N5380B 1N5380 Power Zener Diode 5W 120V DO-15 Axial Diodes 5 Watt 120 Volt

1N5380B
1N5380B (5W 120V)
HUABAN 10PCS 1N5380B 1N5380 Power Zener Diode 5W 120V DO-15 Axial Diodes 5 Watt 120 Volt Cover
HUABAN 10PCS 1N5380B 1N5380 Power Zener Diode 5W 120V DO-15(CASE17-02) Axial Diodes 5 Watt 120 Volt

Features
P/N: 1N5380B
Product Type:Zener Diode
V(z): 120V ; V(r): 91.2V ; P: 5W
Package Quantity: 10PCS
Lead-Free / RoHS Compliant Electronics Component / DO-15
#TOP 4

HUABAN 10PCS 1N5363B 1N5363 Power Zener Diode 5W 30V DO-15 Axial Diodes 5 Watt 30 Volt

1N5363B
1N5363B (5W 30V)
HUABAN 10PCS 1N5363B 1N5363 Power Zener Diode 5W 30V DO-15 Axial Diodes 5 Watt 30 Volt Cover
HUABAN 10PCS 1N5363B 1N5363 Power Zener Diode 5W 30V DO-15(CASE17-02) Axial Diodes 5 Watt 30 Volt

Features
P/N: 1N5363B
Product Type:Zener Diode
V(z): 30V ; V(r): 22.8V ; P: 5W
Package Quantity: 10PCS
Lead-Free / RoHS Compliant Electronics Component / DO-15
#TOP 5

AEDIKO 270pcs Zener Diodes Assortment Kit

AE-1153_4
AEDIKO 270pcs Zener Diodes Assortment Kit Cover
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 6.8V 7.5V 8.2V 9.1V 10V 12V 13V 15V 16V 18V 20V 22V 24V 27V 30V 33V

The AEDIKO Zener Diodes Kit includes 270 pieces across 27 different voltage values, making it a versatile choice for various electronic projects. Each diode is designed for low leakage and high efficiency, ensuring minimal power loss during use. As these components are lead-free and RoHS compliant, you can feel confident about their safety and environmental impact. The kit is ideal for hobbyists and professionals alike, supporting everything from repairs to product development.

What We Like
Wide voltage range available
High efficiency and low power loss
Lead-free and RoHS compliant
Perfect for various projects
#TOP 6

HUABAN 10PCS 1N5378B 1N5378 Power Zener Diode 5W 100V DO-15 Axial Diodes 5 Watt 100 Volt

1N5378B
1N5378B (5W 100V)
HUABAN 10PCS 1N5378B 1N5378 Power Zener Diode 5W 100V DO-15 Axial Diodes 5 Watt 100 Volt Cover
HUABAN 10PCS 1N5378B 1N5378 Power Zener Diode 5W 100V DO-15(CASE17-02) Axial Diodes 5 Watt 100 Volt

Features
P/N: 1N5378B
Product Type:Zener Diode
V(z): 100V ; V(r): 76V ; P: 5W
Package Quantity: 10PCS
Lead-Free / RoHS Compliant Electronics Component / DO-15
#TOP 7

Pack of 10 Switch Electronics 15V Zener Diodes

Pack of 10 Switch Electronics 15V Zener Diodes Cover
15V 1.3W Zener Diode DO-41 BZX85C15 (Pack of 10)

The Switch Electronics Zener Diodes are designed to provide reliable voltage regulation with a 15V rating. This feature ensures that your electronic circuits operate within safe voltage levels, protecting sensitive components from damage. With a power dissipation of 1.3W, these diodes can handle moderate power loads, making them suitable for various applications. They are specifically made for through-hole installations, allowing for easy integration into your projects. The cathode is clearly identified by a polarity band, simplifying the installation process for users.

What We Like
Reliable voltage regulation
Moderate power handling
Easy through-hole installation
Clear polarity identification
#TOP 8

AUKENIEN 1/2W Zener Diode Assortment Kit

AKN-ZENER DIODE-1/2W
1/2W Zener Diode
AUKENIEN 1/2W Zener Diode Assortment Kit Cover
AUKENIEN 1/2W Zener Diode Set 34 Values 0.5W Zener Diodes Diodos Assortment Kit

The AUKENIEN Zener Diodes Kit offers a comprehensive selection of 34 different values of 0.5W Zener diodes, perfect for various electronics projects. Each diode is clearly labelled, allowing you to quickly identify and organise them without the hassle of deciphering colour bands. With complete RoHS certification, these lead-free diodes ensure high precision and stability, giving you confidence in their performance. The practical packaging makes it easy for you to store and access the diodes whenever needed, enhancing your overall efficiency.

What We Like
34 different Zener diode values
Clear labelling for easy identification
High precision and stability
Lead-free and RoHS certified
Convenient storage packaging
#TOP 9

DollaTek 300Pcs Zener Diode Assortment Kit

DollaTek 300Pcs Zener Diode Assortment Kit Cover
DollaTek 300Pcs (2V ~ 39V) 30 values 1/2W 0.5W Zener Diode set mixed assortment KIT

The DollaTek Zener Diode Kit offers a comprehensive assortment of 300 pieces, including 30 different voltage values, with 10 diodes for each type. This variety ensures that you have the right component for various applications, providing convenience in your projects. Each diode is RoHS certified, ensuring they are lead-free and environmentally friendly, while also offering high precision and stability. Additionally, the clear labelling of each diode allows for easy organisation, helping you find the right part without the hassle of deciphering colour bands.

What We Like
Wide range of voltage values
High precision and stability
RoHS certified, lead-free
Easy organisation with labels
#TOP 10

100PCS 1N4744A 1N4744 Silicon Planar Power Zener Diode 1W 15V DO-41 Axial Diodes 1 Watt 15 Volt

1N4744A
1N4744A 1W 15V
100PCS 1N4744A 1N4744 Silicon Planar Power Zener Diode 1W 15V DO-41 Axial Diodes 1 Watt 15 Volt Cover
100PCS 1N4744A 1N4744 Silicon Planar Power Zener Diode 1W 15V DO-41 (DO-204AL) Axial Diodes 1 Watt 15 Volt

Features
Lead-Free / RoHS Compliant Electronics Component / Through Hole
Part Number: 1N4744A
Power Dissipation : 1W ; Zener Voltage:15V
Package Quantity: 100PCS
Items Are Pack In A ESD Bag With Main Specs Label
Buying Guide Image
Editor's Notes

During our do-15 zener diode research, we found 26 do-15 zener diode products and shortlisted 10 quality products. We collected and analyzed 5,594 customer reviews through our big data system to write the do-15 zener diodes list. We found that most customers choose do-15 zener diodes with an average price of £7.08.

The do-15 zener diodes are available for purchase. We have researched hundreds of brands and picked the top brands of do-15 zener diodes, including CHANZON, HUABAN, AEDIKO, Switch Electronics, AUKENIEN.

Written by
Harvey Wall Avatar

Harvey Wall was born and raised in Norwich. He mastered the art of tool production and finished at the prestigious Norwich University. His area of interest include cutting tools, abrasive finishing and power tools. Harvey is always looking for ways to improve the finesse of industrial tools via his myriads of researches. He also shares some of his experiences on many platforms while writing on tool products.