Onsemi Zener Diodes 2,400+

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Part RoHS Manufacturer Diode Type Terminal Position Terminal Form No. of Terminals Surface Mount Package Shape Package Body Material Working Test Current Config Maximum Voltage Temperature Coefficient Nominal Reference Voltage Maximum Output Current Maximum Non Repetitive Peak Reverse Power Dissipation Maximum Forward Voltage (VF) Nominal Breakdown Voltage Maximum Reverse Recovery Time Technology Maximum Reverse Current No. of Elements Reverse Test Voltage Package Style (Meter) Sub-Category Maximum Voltage Tolerance Maximum Repetitive Peak Reverse Voltage Maximum Knee Impedance Maximum Operating Temperature Maximum Dynamic Impedance Minimum Operating Temperature Terminal Finish JESD-30 Code Moisture Sensitivity Level (MSL) Polarity Case Connection Qualification Maximum Power Dissipation Additional Features JEDEC-95 Code Maximum Clamping Voltage Minimum Breakdown Voltage Maximum Non Repetitive Peak Forward Current JESD-609 Code Maximum Time At Peak Reflow Temperature (s) Peak Reflow Temperature (C) Diode Element Material Maximum Breakdown Voltage Reference Standard

SZBZX84C2V7LT1G

Onsemi

ZENER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

2.7 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

7.41 %

150 Cel

100 ohm

-65 Cel

MATTE TIN

R-PDSO-G3

1

UNIDIRECTIONAL

.25 W

TO-236AB

e3

30

260

SILICON

AEC-Q101

1N5341BG

Onsemi

ZENER DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

200 mA

SINGLE

6.2 V

ZENER

1

LONG FORM

Voltage Reference Diodes

5 %

200 Cel

1 ohm

-65 Cel

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

e3

SILICON

BZX84C9V1LT3G

Onsemi

ZENER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

9.1 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

6.08 %

150 Cel

15 ohm

-65 Cel

MATTE TIN

R-PDSO-G3

1

UNIDIRECTIONAL

Not Qualified

.25 W

TO-236AB

e3

30

260

SILICON

UL RECOGNIZED

MM5Z16VT1G

Onsemi

ZENER DIODE

DUAL

FLAT

2

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

16.2 V

.9 V

ZENER

.05 uA

1

11.2 V

SMALL OUTLINE

Voltage Reference Diodes

5.56 %

80 ohm

150 Cel

40 ohm

-65 Cel

MATTE TIN

R-PDSO-F2

1

UNIDIRECTIONAL

Not Qualified

.5 W

e3

30

260

SILICON

1N4744A-T50A

Onsemi

ZENER DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

17 mA

SINGLE

15 V

ZENER

1

LONG FORM

Voltage Reference Diodes

5 %

200 Cel

14 ohm

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

1 W

DO-41

e3

SILICON

MMSZ5242BT3G

Onsemi

ZENER DIODE

DUAL

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

20 mA

SINGLE

12 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5 %

150 Cel

30 ohm

-55 Cel

MATTE TIN

R-PDSO-G2

1

UNIDIRECTIONAL

Not Qualified

.5 W

e3

30

260

SILICON

BZX84C5V6LT3G

Onsemi

ZENER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

5.6 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

7.14 %

150 Cel

40 ohm

-65 Cel

MATTE TIN

R-PDSO-G3

1

UNIDIRECTIONAL

Not Qualified

.25 W

TO-236AB

e3

30

260

SILICON

UL RECOGNIZED

1N5343BRLG

Onsemi

ZENER DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

175 mA

SINGLE

7.5 V

ZENER

1

LONG FORM

Voltage Reference Diodes

5 %

200 Cel

1.5 ohm

-65 Cel

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

e3

SILICON

BZX84C2V7LT1G

Onsemi

ZENER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

2.7 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

7.41 %

150 Cel

100 ohm

-65 Cel

MATTE TIN

R-PDSO-G3

1

UNIDIRECTIONAL

Not Qualified

.25 W

TO-236AB

e3

30

260

SILICON

UL RECOGNIZED

MMSZ5228BT1G

Onsemi

ZENER DIODE

DUAL

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

20 mA

SINGLE

3.9 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5 %

150 Cel

23 ohm

-55 Cel

MATTE TIN

R-PDSO-G2

1

UNIDIRECTIONAL

Not Qualified

.5 W

e3

30

260

SILICON

BZX84C30LT1G

Onsemi

ZENER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

2 mA

SINGLE

30 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

6.6 %

150 Cel

80 ohm

-65 Cel

MATTE TIN

R-PDSO-G3

1

UNIDIRECTIONAL

Not Qualified

.25 W

TO-236AB

e3

30

260

SILICON

UL RECOGNIZED

SZ1SMB5937BT3G

Onsemi

ZENER DIODE

DUAL

L BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

11.4 mA

SINGLE

33 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5 %

150 Cel

33 ohm

-65 Cel

MATTE TIN

R-PDSO-L2

1

UNIDIRECTIONAL

.55 W

e3

30

260

SILICON

AEC-Q101

1SMA5937BT3G

Onsemi

ZENER DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

11.4 mA

SINGLE

33 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5 %

150 Cel

33 ohm

-65 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

Not Qualified

.5 W

e3

30

260

SILICON

SZ1SMB5938BT3G-VF01

Onsemi

ZENER DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

10.4 mA

SINGLE

36 V

1.5 V

ZENER

1 uA

1

27.4 V

SMALL OUTLINE

5 %

850 ohm

150 Cel

38 ohm

-65 Cel

Matte Tin (Sn) - annealed

R-PDSO-C2

1

UNIDIRECTIONAL

.55 W

e3

30

260

SILICON

AEC-Q101

SZMMSZ4698T1G

Onsemi

ZENER DIODE

DUAL

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

.05 mA

SINGLE

11 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5 %

150 Cel

-55 Cel

MATTE TIN

R-PDSO-G2

1

UNIDIRECTIONAL

.5 W

e3

30

260

SILICON

AEC-Q101

BZX84C6V2LT3G

Onsemi

ZENER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

6.2 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

6.45 %

150 Cel

10 ohm

-65 Cel

MATTE TIN

R-PDSO-G3

1

UNIDIRECTIONAL

Not Qualified

.25 W

TO-236AB

e3

30

260

SILICON

UL RECOGNIZED

SZMM3Z16VT1G

Onsemi

ZENER DIODE

DUAL

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

16.2 V

.9 V

ZENER

.05 uA

1

11.2 V

SMALL OUTLINE

5.56 %

80 ohm

150 Cel

40 ohm

-65 Cel

MATTE TIN

R-PDSO-G2

1

UNIDIRECTIONAL

.3 W

e3

30

260

SILICON

AEC-Q101

MM3Z6V2T1G

Onsemi

ZENER DIODE

DUAL

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

6.2 V

.9 V

ZENER

3 uA

1

4 V

SMALL OUTLINE

Voltage Reference Diodes

6.45 %

100 ohm

150 Cel

10 ohm

-65 Cel

MATTE TIN

R-PDSO-G2

1

UNIDIRECTIONAL

Not Qualified

.3 W

e3

30

260

SILICON

1SMB5946BT3G

Onsemi

ZENER DIODE

DUAL

L BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

75 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5 %

150 Cel

140 ohm

-65 Cel

MATTE TIN

R-PDSO-L2

1

UNIDIRECTIONAL

Not Qualified

.55 W

e3

30

260

SILICON

SZMM3Z10VST1G

Onsemi

ZENER DIODE

DUAL

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

10 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

2 %

150 Cel

15 ohm

-65 Cel

MATTE TIN

R-PDSO-G2

1

UNIDIRECTIONAL

.3 W

e3

30

260

SILICON

AEC-Q101

1SMA5915BT3G

Onsemi

ZENER DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

96.1 mA

SINGLE

3.9 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5 %

150 Cel

500 ohm

-65 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

Not Qualified

.5 W

e3

30

260

SILICON

BZX84C33LT1G

Onsemi

ZENER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

2 mA

SINGLE

33 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

6.06 %

150 Cel

80 ohm

-65 Cel

MATTE TIN

R-PDSO-G3

1

UNIDIRECTIONAL

Not Qualified

.25 W

TO-236AB

e3

30

260

SILICON

UL RECOGNIZED

BZX84C3V0LT1G

Onsemi

ZENER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

3 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

6.67 %

150 Cel

95 ohm

-65 Cel

MATTE TIN

R-PDSO-G3

1

UNIDIRECTIONAL

Not Qualified

.25 W

TO-236AB

e3

30

260

SILICON

UL RECOGNIZED

BZX84C4V3LT1G

Onsemi

ZENER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

4.3 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

6.98 %

150 Cel

90 ohm

-65 Cel

MATTE TIN

R-PDSO-G3

1

UNIDIRECTIONAL

Not Qualified

.25 W

TO-236AB

e3

30

260

SILICON

UL RECOGNIZED

SZMM3Z3V6T1G

Onsemi

ZENER DIODE

DUAL

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

3.6 V

.9 V

ZENER

5 uA

1

1 V

SMALL OUTLINE

Voltage Reference Diodes

5.56 %

1000 ohm

150 Cel

90 ohm

-65 Cel

MATTE TIN

R-PDSO-G2

1

UNIDIRECTIONAL

.3 W

e3

30

260

SILICON

AEC-Q101

SZMMSZ12T1G

Onsemi

ZENER DIODE

DUAL

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

12 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5 %

150 Cel

25 ohm

-55 Cel

MATTE TIN

R-PDSO-G2

1

UNIDIRECTIONAL

.5 W

e3

30

260

SILICON

AEC-Q101

SZ1SMB5936BT3G-VF01

Onsemi

ZENER DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

12.5 mA

SINGLE

30 V

1.5 V

ZENER

1 uA

1

22.8 V

SMALL OUTLINE

5 %

750 ohm

150 Cel

28 ohm

-65 Cel

Matte Tin (Sn) - annealed

R-PDSO-C2

1

UNIDIRECTIONAL

.55 W

e3

30

260

SILICON

AEC-Q101

MM3Z12VST1G

Onsemi

ZENER DIODE

DUAL

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

10 mV/Cel

12 V

ZENER

.1 uA

1

8 V

SMALL OUTLINE

Voltage Reference Diodes

2.09 %

80 ohm

150 Cel

25 ohm

-65 Cel

MATTE TIN

R-PDSO-G2

1

UNIDIRECTIONAL

Not Qualified

.3 W

e3

30

260

SILICON

SZMMSZ5237BT1G

Onsemi

ZENER DIODE

DUAL

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

20 mA

SINGLE

8.2 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5 %

150 Cel

8 ohm

-55 Cel

MATTE TIN

R-PDSO-G2

1

UNIDIRECTIONAL

.5 W

e3

30

260

SILICON

AEC-Q101

1N5234BTR

Onsemi

ZENER DIODE

AXIAL

WIRE

2

NO

ROUND

GLASS

20 mA

SINGLE

6.2 V

ZENER

1

LONG FORM

Voltage Reference Diodes

5 %

200 Cel

7 ohm

MATTE TIN

O-LALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

.5 W

DO-35

e3

SILICON

SZ1SMA5935BT3G

Onsemi

ZENER DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

13.9 mA

SINGLE

27 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5 %

150 Cel

23 ohm

-65 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

.5 W

e3

30

260

SILICON

AEC-Q101

1N5336BG

Onsemi

ZENER DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

290 mA

SINGLE

4.3 V

ZENER

1

LONG FORM

Voltage Reference Diodes

5 %

200 Cel

2 ohm

-65 Cel

MATTE TIN

O-PALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

5 W

e3

SILICON

SZ1SMA5921BT3G

Onsemi

ZENER DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

55.1 mA

SINGLE

6.8 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5 %

150 Cel

2.5 ohm

-65 Cel

MATTE TIN

R-PDSO-C2

1

UNIDIRECTIONAL

.5 W

e3

30

260

SILICON

AEC-Q101

BZX84B27LT1G

Onsemi

ZENER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

2 mA

SINGLE

27 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

2 %

150 Cel

80 ohm

-65 Cel

MATTE TIN

R-PDSO-G3

1

UNIDIRECTIONAL

Not Qualified

.25 W

e3

30

260

SILICON

SZ1SMB5928BT3G

Onsemi

ZENER DIODE

DUAL

L BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

28.8 mA

SINGLE

13 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5 %

150 Cel

7 ohm

-65 Cel

MATTE TIN

R-PDSO-L2

1

UNIDIRECTIONAL

.55 W

e3

30

260

SILICON

AEC-Q101

MM5Z5V1ST1G

Onsemi

ZENER DIODE

DUAL

FLAT

2

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

5.1 V

.9 V

ZENER

2 uA

1

2 V

SMALL OUTLINE

Voltage Reference Diodes

2.16 %

60 ohm

150 Cel

500 ohm

-65 Cel

MATTE TIN

R-PDSO-F2

1

UNIDIRECTIONAL

Not Qualified

.2 W

e3

30

260

SILICON

SZBZX84C10ET1G

Onsemi

ZENER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

10 V

ZENER

1

SMALL OUTLINE

6 %

150 ohm

150 Cel

20 ohm

-65 Cel

MATTE TIN

R-PDSO-G3

1

UNIDIRECTIONAL

.25 W

TO-236AB

e3

30

260

SILICON

AEC-Q101; UL RECOGNIZED

BZX84B7V5LT1G

Onsemi

ZENER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

7.5 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

2 %

150 Cel

15 ohm

-65 Cel

MATTE TIN

R-PDSO-G3

1

UNIDIRECTIONAL

Not Qualified

.25 W

TO-236AB

e3

30

260

SILICON

UL RECOGNIZED

MM3Z7V5ST1G

Onsemi

ZENER DIODE

DUAL

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

7.5 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

2.15 %

150 Cel

15 ohm

-65 Cel

MATTE TIN

R-PDSO-G2

1

UNIDIRECTIONAL

Not Qualified

.3 W

e3

30

260

SILICON

MMSZ5225BT1G

Onsemi

ZENER DIODE

DUAL

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

20 mA

SINGLE

3 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5 %

150 Cel

29 ohm

-55 Cel

MATTE TIN

R-PDSO-G2

1

UNIDIRECTIONAL

Not Qualified

.5 W

e3

30

260

SILICON

SZMM3Z6V2ST1G

Onsemi

ZENER DIODE

DUAL

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

6.2 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

2.18 %

150 Cel

10 ohm

-65 Cel

MATTE TIN

R-PDSO-G2

1

UNIDIRECTIONAL

.3 W

e3

30

260

SILICON

AEC-Q101

BZX79C5V1

Onsemi

ZENER DIODE

AXIAL

WIRE

2

NO

ROUND

GLASS

5 mA

SINGLE

5.1 V

ZENER

1

LONG FORM

Voltage Reference Diodes

5 %

200 Cel

60 ohm

-65 Cel

Matte Tin (Sn) - annealed

O-LALF-W2

UNIDIRECTIONAL

ISOLATED

Not Qualified

.5 W

DO-35

e3

NOT SPECIFIED

NOT SPECIFIED

SILICON

MMBZ5239BLT1G

Onsemi

ZENER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

20 mA

SINGLE

9.1 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5.05 %

150 Cel

10 ohm

-65 Cel

MATTE TIN

R-PDSO-G3

1

UNIDIRECTIONAL

Not Qualified

.225 W

TO-236AB

e3

30

260

SILICON

SZ1SMB5922BT3G

Onsemi

ZENER DIODE

DUAL

L BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

50 mA

SINGLE

7.5 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5 %

150 Cel

3 ohm

-65 Cel

MATTE TIN

R-PDSO-L2

1

UNIDIRECTIONAL

.55 W

e3

30

260

SILICON

AEC-Q101

SZ1SMB5930BT3G

Onsemi

ZENER DIODE

DUAL

L BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

23.4 mA

SINGLE

16 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5 %

150 Cel

10 ohm

-65 Cel

MATTE TIN

R-PDSO-L2

1

UNIDIRECTIONAL

.55 W

e3

30

260

SILICON

AEC-Q101

SZ1SMB5956BT3G

Onsemi

ZENER DIODE

DUAL

L BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

1.9 mA

SINGLE

200 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5 %

150 Cel

1200 ohm

-65 Cel

MATTE TIN

R-PDSO-L2

1

UNIDIRECTIONAL

.55 W

e3

30

260

SILICON

AEC-Q101

1SMB5920BT3

Onsemi

ZENER DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

60.5 mA

SINGLE

6.2 V

ZENER

1

SMALL OUTLINE

Voltage Reference Diodes

5 %

175 Cel

2 ohm

Tin/Lead (Sn/Pb)

R-PDSO-C2

1

UNIDIRECTIONAL

Not Qualified

.55 W

DO-214AA

e0

30

235

SILICON

MM3Z6V8T1G

Onsemi

ZENER DIODE

DUAL

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

5 mA

SINGLE

6.8 V

.9 V

ZENER

2 uA

1

4 V

SMALL OUTLINE

Voltage Reference Diodes

5.88 %

160 ohm

150 Cel

15 ohm

-65 Cel

MATTE TIN

R-PDSO-G2

1

UNIDIRECTIONAL

Not Qualified

.3 W

e3

30

260

SILICON

Zener Diodes

Zener diodes are electronic components that are designed to operate in the reverse breakdown region of their P-N junction, providing a stable and predictable voltage output. They are commonly used in electronic circuits as voltage regulators, voltage references, and surge protectors.

Zener diodes operate based on the properties of their P-N junction, which is designed to have a narrow depletion region and a low breakdown voltage. When a reverse voltage is applied to the diode, the depletion region widens, allowing a small reverse current to flow. As the voltage across the diode increases, the reverse current increases exponentially, maintaining a stable voltage across the diode.

Zener diodes offer several advantages over other types of voltage regulators, such as simplicity, low cost, and high efficiency. They do not require any external components, such as capacitors or inductors, and they can provide a stable output voltage over a wide range of input voltages and temperatures.

Zener diodes are commonly used in electronic circuits that require a stable voltage source, such as power supplies, battery chargers, and voltage regulators. They come in different package sizes and voltage ratings, depending on the application and the required performance.