Home page

Zener Diodes

A ‌Zener Diode‌ is a specialized semiconductor device engineered to ‌maintain a stable reference voltage‌ in circuits by operating reliably in its ‌reverse breakdown region‌. Unlike standard diodes (which break down destructively under reverse bias), Zener diodes leverage controlled reverse breakdown for precise voltage regulation, surge protection, and signal clipping.

‌Core Working Principle‌:

1‌. Reverse Breakdown Mechanism‌:

Zener Effect‌: Dominates below ‌5.6V‌ – quantum tunneling of electrons across the PN junction.

Avalanche Effect‌: Dominates above ‌5.6V‌ – impact ionization creating electron "avalanches".
→ Both maintain near-constant voltage (VZ) across the diode during reverse conduction.

2‌.Self-Recovery:

Unlike fuses or MOVs, Zener diodes revert to blocking mode when voltage drops below VZ.

All Products

Part Number

Marking

Package

Vz @ Izt

Nom.
(V)

Min.
(V)

Max.
(V)

ZZT

Max.

(Ω)

@ Izt

(mA)

ZZK

Max.

(Ω)

@ Izk

(mA)

IR(μA)

Max.

@VR
(V)

1N5249B

DO-35

0.5

19.0

18.05

19.95

6.6

600

0.25

0.1

1N5250B

DO-35

0.5

20.0

19.00

21.00

6.2

600

0.25

0.1

1N5251B

DO-35

0.5

22.0

20.90

23.10

5.6

600

0.25

0.1

1N5252B

DO-35

0.5

24.0

22.80

25.20

5.2

600

0.25

0.1

1N5253B

DO-35

0.5

25.0

23.75

26.25

600

0.25

0.1

1N5254B

DO-35

0.5

27.0

25.65

28.35

4.6

600

0.25

0.1

1N5255B

DO-35

0.5

28.0

26.60

29.40

4.5

600

0.25

0.1

1N5256B

DO-35

0.5

30.0

28.50

31.50

4.2

600

0.25

0.1

1N5257B

DO-35

0.5

33.0

31.35

34.65

3.8

700

0.25

0.1

1N5258B

DO-35

0.5

36.0

34.20

37.80

3.4

700

0.25

0.1

1N5259B

DO-35

0.5

39.0

37.05

40.95

3.2

800

0.25

0.1

1N5260B

DO-35

0.5

43.0

40.85

45.15

900

0.25

0.1

1N5261B

DO-35

0.5

47.0

44.65

49.35

150

2.7

1000

0.25

0.1

1N5262B

DO-35

0.5

51.0

48.45

53.55

125

2.5

1100

0.25

0.1

1N5263B

DO-35

0.5

56.0

53.20

58.80

150

2.2

1300

0.25

0.1

Total 1435 < 1...14 15 16...96 > proceed page OK

General Purpose Rectifier Diodes

High Efficiency Rectifier Diodes

Fast Recovery Rectifier Diodes

Super Fast Recovery Rectifier Diodes

Bridge Rectifier Diodes

Small Signal Switching Diodes

product catalog ➜

About JUXIN ➜

Nantong JUXIN Semiconductor Co., Ltd.

Contact: Mr.Jacky

Address: No.196, East Qingyu Road‌, Rucheng Street, Rugao-226500, Jiangsu Province, China.

Phone(Wechat): +86-15190885420

Email: info@rectifier-diode.com

Anhui JUXIN Semiconductor Co., Ltd.

Address: No.99,Shuanglong Road,Chizhou Economic Technology Development Zone,Anhui Province,China.

Quick Navigation:

Website QR code

COOKIES

Our website uses cookies and similar technologies to personalize the advertising shown to you and to help you get the best experience on our website. For more information, see our Privacy & Cookie Policy

COOKIES

required

These cookies are necessary for basic functions such as payment. Standard cookies cannot be turned off and do not store any of your information.

analyze

These cookies collect information, such as how many people are using our site or which pages are popular, to help us improve the customer experience. Turning these cookies off will mean we can't collect information to improve your experience.

Feature

These cookies enable the website to provide enhanced functionality and personalization. They may be set by us or by third-party providers whose services we have added to our pages. If you do not allow these cookies, some or all of these services may not function properly.

advertise

These cookies help us understand what you are interested in so that we can show you relevant advertising on other websites. Turning these cookies off will mean we are unable to show you any personalized advertising.