Best DO-204AL Zener Diodes of 2026

Harvey Wall Avatar
Harvey Wall
Last Updated: 2 Feb 2026

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DO-204AL Zener Diodes are electronic components widely used in voltage regulation and protection circuits. These diodes are designed to maintain a constant voltage level across a circuit, regardless of any fluctuations in the input voltage. They are available in a variety of voltage ratings and can be used in various applications such as power supplies, automotive electronics, and industrial control systems. DO-204AL Zener Diodes are reliable and efficient, making them a popular choice among engineers and hobbyists alike.

At a Glance: Our Top Picks

Chanzon 1N4739A 1N4739 Power Zener Diode 1W 9.1V DO-41 Axial Diodes 1 Watt 9.1 Volt 9V1 Cover #TOP 1
Chanzon 1N4739A 1N4739 Power Zener Diode 1W 9.1V DO-41 Axial Diodes 1 Watt 9.1 Volt 9V1
ftb score rating icon 9.8
20PCS 1N4742A 1N4742 Silicon Planar Power Zener Diode 1W 12V DO-41 Axial Diodes 1 Watt 12 Volt Cover #TOP 2
20PCS 1N4742A 1N4742 Silicon Planar Power Zener Diode 1W 12V DO-41 Axial Diodes 1 Watt 12 Volt
ftb score rating icon 9.7
Chanzon 1N4733A 1N4733 Power Zener Diode 1W 5.1V DO-41 Axial Diodes 1 Watt 5.1 Volt 5V1 Cover #TOP 3
Chanzon 1N4733A 1N4733 Power Zener Diode 1W 5.1V DO-41 Axial Diodes 1 Watt 5.1 Volt 5V1
ftb score rating icon 9.5

Top 10 DO-204AL Zener Diodes

#TOP 1

Chanzon 1N4739A 1N4739 Power Zener Diode 1W 9.1V DO-41 Axial Diodes 1 Watt 9.1 Volt 9V1

1N4739A x 100 Pieces
Chanzon 1N4739A 1N4739 Power Zener Diode 1W 9.1V DO-41 Axial Diodes 1 Watt 9.1 Volt 9V1 Cover
(Pack of 100 Pieces) Chanzon 1N4739A 1N4739 Power Zener Diode 1W 9.1V DO-41 (DO-204AL) Axial Diodes 1 Watt 9.1 Volt 9V1

Features
Lead-Free / RoHS Compliant Electronics Component / Through Hole
IN4739A (4739A) 1Watt - 9.1 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 1N4742A 1N4742 Silicon Planar Power Zener Diode 1W 12V DO-41 Axial Diodes 1 Watt 12 Volt

1N4742A
1N4742A 1W 12V
20PCS 1N4742A 1N4742 Silicon Planar Power Zener Diode 1W 12V DO-41 Axial Diodes 1 Watt 12 Volt Cover
20PCS 1N4742A 1N4742 Silicon Planar Power Zener Diode 1W 12V DO-41 (DO-204AL) Axial Diodes 1 Watt 12 Volt

Features
Lead-Free / RoHS Compliant Electronics Component / Through Hole
Part Number: 1N4742A
Power Dissipation : 1W ; Zener Voltage:12V
Package Quantity: 20PCS
Items Are Pack In A ESD Bag With Main Specs Label
#TOP 3

Chanzon 1N4733A 1N4733 Power Zener Diode 1W 5.1V DO-41 Axial Diodes 1 Watt 5.1 Volt 5V1

1N4733A x 100 Pieces
Chanzon 1N4733A 1N4733 Power Zener Diode 1W 5.1V DO-41 Axial Diodes 1 Watt 5.1 Volt 5V1 Cover
(Pack of 100 Pieces) Chanzon 1N4733A 1N4733 Power Zener Diode 1W 5.1V DO-41 (DO-204AL) Axial Diodes 1 Watt 5.1 Volt 5V1

Features
Lead-Free / RoHS Compliant Electronics Component / Through Hole
IN4733A (4733A) 1Watt - 5.1 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 4

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 5

100PCS 1N4733A 1N4733 Silicon Planar Power Zener Diode 1W 5.1V DO-41 Axial Diodes 1 Watt 5.1 Volt

1N4733A
1N4733A 1W 5.1V
100PCS 1N4733A 1N4733 Silicon Planar Power Zener Diode 1W 5.1V DO-41 Axial Diodes 1 Watt 5.1 Volt Cover
100PCS 1N4733A 1N4733 Silicon Planar Power Zener Diode 1W 5.1V DO-41 (DO-204AL) Axial Diodes 1 Watt 5.1 Volt

Features
Lead-Free / RoHS Compliant Electronics Component / Through Hole
Part Number: 1N4733A
Power Dissipation : 1W ; Zener Voltage:5.1V
Package Quantity: 100PCS
Items Are Pack In A ESD Bag With Main Specs Label
#TOP 6

Chanzon 1N4747A 1N4747 Power Zener Diode 1W 20V DO-41 Axial Diodes 1 Watt 20 Volt

1N4747A x 100 Pieces
Chanzon 1N4747A 1N4747 Power Zener Diode 1W 20V DO-41 Axial Diodes 1 Watt 20 Volt Cover
(Pack of 100 Pieces) Chanzon 1N4747A 1N4747 Power Zener Diode 1W 20V DO-41 (DO-204AL) Axial Diodes 1 Watt 20 Volt

Features
Lead-Free / RoHS Compliant Electronics Component / Through Hole
IN4747A (4747A) 1Watt - 20 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 7

100PCS 1N4742A 1N4742 Silicon Planar Power Zener Diode 1W 12V DO-41 Axial Diodes 1 Watt 12 Volt

1N4742A
1N4742A 1W 12V
100PCS 1N4742A 1N4742 Silicon Planar Power Zener Diode 1W 12V DO-41 Axial Diodes 1 Watt 12 Volt Cover
100PCS 1N4742A 1N4742 Silicon Planar Power Zener Diode 1W 12V DO-41 (DO-204AL) Axial Diodes 1 Watt 12 Volt

Features
Lead-Free / RoHS Compliant Electronics Component / Through Hole
Part Number: 1N4742A
Power Dissipation : 1W ; Zener Voltage:12V
Package Quantity: 100PCS
Items Are Pack In A ESD Bag With Main Specs Label
#TOP 8

Chanzon 1N4734A 1N4734 Power Zener Diode 1W 5.6V DO-41 Axial Diodes 1 Watt 5.6 Volt 5V6

1N4734A x 100 Pieces
Chanzon 1N4734A 1N4734 Power Zener Diode 1W 5.6V DO-41 Axial Diodes 1 Watt 5.6 Volt 5V6 Cover
(Pack of 100 Pieces) Chanzon 1N4734A 1N4734 Power Zener Diode 1W 5.6V DO-41 (DO-204AL) Axial Diodes 1 Watt 5.6 Volt 5V6

Features
Lead-Free / RoHS Compliant Electronics Component / Through Hole
IN4734A (4734A) 1Watt - 5.6 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 9

Chanzon 1N4728A 1N4728 Power Zener Diode 1W 3.3V DO-41 Axial Diodes 1 Watt 3.3 Volt 3V3

1N4728A x 100 Pieces
Chanzon 1N4728A 1N4728 Power Zener Diode 1W 3.3V DO-41 Axial Diodes 1 Watt 3.3 Volt 3V3 Cover
(Pack of 100 Pieces) Chanzon 1N4728A 1N4728 Power Zener Diode 1W 3.3V DO-41 (DO-204AL) Axial Diodes 1 Watt 3.3 Volt 3V3

Features
Lead-Free / RoHS Compliant Electronics Component / Through Hole
IN4728A (4728A) 1Watt - 3.3 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 10

ZENER DIODE, 3W, 3.3V

1N5913BRLG
ZENER DIODE, 3W, 3.3V Cover
ZENER DIODE, 3W, 3.3V, DO-204AL | ZENER DIODES 5 X Qty - 1N5913BRLG

Features
ZENER DIODE, 3W, 3.3V, DO-204AL
Buying Guide Image
Editor's Notes

During our do-204al zener diode research, we found 31 do-204al zener diode products and shortlisted 10 quality products. We collected and analyzed 6,962 customer reviews through our big data system to write the do-204al zener diodes list. We found that most customers choose do-204al zener diodes with an average price of £20.00.

The do-204al zener diodes are available for purchase. We have researched hundreds of brands and picked the top brands of do-204al zener diodes, including CHANZON, HUABAN, ONSEMI.

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.