About Zener Diodes

Zener Diodes

Zener diodes are a type of diode that allows current to flow in the reverse direction when the voltage across the diode exceeds the reverse breakdown voltage. The breakdown voltage, also known as the Zener voltage, is the voltage at which the diode starts to conduct in the reverse direction. Zener diodes are designed specifically to provide a regulated voltage across their terminals. They are commonly used in voltage regulation circuits and in power supply circuits.

Zener Diodes

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Image	Stock Code(▲▼)	Description	Manufacturer	Availability ⓘ (▲▼)	Price(AUD) (Ex. GST)(▲▼)	Enter Qty	Vz - Zener Voltage	Voltage Tolerance	Voltage Temperature Coefficient	Zener Current	Pd - Power Dissipation	Maximum Reverse Leakage Current	Zz - Zener Impedance	Maximum Operating Temperature	Configuration	Mounting Style	Package / Case	Packaging	Minimum Operating Temperature	Test Current	Qualification	Series

BZX85C20-TR

Zener Diodes 20 Volt 1.3 Watt 5%
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Vishay

79449
Ships to you
between Tue. 19 May to Thu. 21 May

May 2026

May 2026
	S	M	T	W	T	F	S
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9
20	10	11	12	13	14	15	16
21	17	18	19	20	21	22	23
22	24	25	26	27	28	29	30
23	31	1	2	3	4	5	6

AUD 0.2169

Multiples of: 1

20 V

6 %

0.075 % / C

56 mA

1.3 W

500 nA

24 Ohms

+ 175 C

Single

Through Hole

DO - 41

Reel

- 55 C

10 mA

SZMMSZ5231BT1G

Zener Diodes ZEN REG 0.5W 5.1V
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

ON Semiconductor

78570
Ships to you
between Wed. 13 May to Tue. 19 May

May 2026

May 2026
	S	M	T	W	T	F	S
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9
20	10	11	12	13	14	15	16
21	17	18	19	20	21	22	23
22	24	25	26	27	28	29	30
23	31	1	2	3	4	5	6

AUD 0.0623

Multiples of: 3000

5.1 V

5 %

20 mA

500 mW

5 uA

17 Ohms

+ 150 C

Single

Smd/Smt

SOD - 123

Reel

- 55 C

20 mA

Aec - Q101

Szmmsz52

TZX3V0B-TR

Zener Diodes 3.0 Volt 0.5W 5%
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Vishay

78011
Ships to you
between Tue. 19 May to Thu. 21 May

May 2026

May 2026
	S	M	T	W	T	F	S
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9
20	10	11	12	13	14	15	16
21	17	18	19	20	21	22	23
22	24	25	26	27	28	29	30
23	31	1	2	3	4	5	6

AUD 0.1147

Multiples of: 1

3 V

5 %

5 mA

500 mW

5 uA

100 Ohms

+ 175 C

Single

Through Hole

DO - 35

Reel

- 65 C

5 mA

BZX55C18

Diode: Zener; 500mW; 18V; Ammo Pack; DO35; single diode; 0.1uA
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

CDIL

77755
Ships to you
between Wed. 13 May to Tue. 19 May

May 2026

May 2026
	S	M	T	W	T	F	S
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9
20	10	11	12	13	14	15	16
21	17	18	19	20	21	22	23
22	24	25	26	27	28	29	30
23	31	1	2	3	4	5	6

AUD 0.024

Multiples of: 20

BZX84C5V1

Single 4.8V~5.4V 300mW 5.1V SOT-23 Zener Diodes ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

HXY MOS

73739
Ships to you
between Wed. 27 May to Mon. 01 Jun

June 2026

June 2026
	S	M	T	W	T	F	S
23	31	1	2	3	4	5	6
24	7	8	9	10	11	12	13
25	14	15	16	17	18	19	20
26	21	22	23	24	25	26	27
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11

AUD 0.0127

Multiples of: 20

BZV55-C12,115

Zener Diodes 12V 500mW
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Nexperia

71857
Ships to you
between Tue. 19 May to Thu. 21 May

May 2026

May 2026
	S	M	T	W	T	F	S
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9
20	10	11	12	13	14	15	16
21	17	18	19	20	21	22	23
22	24	25	26	27	28	29	30
23	31	1	2	3	4	5	6

AUD 0.0361

Multiples of: 1

12.7 V

5 %

8.4 mv/ K

100 nA

500 mW

100 nA

25 Ohms

+ 200 C

Single

Smd/Smt

SOD - 80

Reel

- 65 C

5 mA

MMBZ5230B-7-F

Diode Zener Single 4.7V 5% 350mW 3-Pin SOT-23 T/R
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Diodes Incorporated

69840
Ships to you
between Wed. 13 May to Tue. 19 May

May 2026

May 2026
	S	M	T	W	T	F	S
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9
20	10	11	12	13	14	15	16
21	17	18	19	20	21	22	23
22	24	25	26	27	28	29	30
23	31	1	2	3	4	5	6

AUD 0.031

Multiples of: 3000

4.7 V

5 %

350 mW

19 Ohms

+ 150 C

Single

SMD/SMT

SOT - 23 - 3

Reel , Cut Tape

- 65 C

20 mA

MMBZ5230B

BZV55-C15,115

Zener Diodes DIODE ZENER 5 PCT TAPE-7
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Nexperia

21825
Ships to you
between Wed. 13 May to Tue. 19 May

May 2026

May 2026
	S	M	T	W	T	F	S
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9
20	10	11	12	13	14	15	16
21	17	18	19	20	21	22	23
22	24	25	26	27	28	29	30
23	31	1	2	3	4	5	6

AUD 0.0323

Multiples of: 2500

15 V

5 %

11.4 mv/ K

50 nA

500 mW

50 nA

30 Ohms

+ 200 C

Single

Smd/Smt

SOD - 80

Reel

- 65 C

5 mA

TZX18B-TR

Zener Diodes 18 Volt 0.5W 5%
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Vishay

2047
Ships to you
between Wed. 13 May to Tue. 19 May

May 2026

May 2026
	S	M	T	W	T	F	S
18	26	27	28	29	30	1	2
19	3	4	5	6	7	8	9
20	10	11	12	13	14	15	16
21	17	18	19	20	21	22	23
22	24	25	26	27	28	29	30
23	31	1	2	3	4	5	6

AUD 0.0732

Multiples of: 1

18 V

5 %

5 mA

500 mW

1 uA

55 Ohms

+ 175 C

Single

Through Hole

DO - 35

Reel

- 65 C

5 mA

MM5Z15VT5GF

Zener Diodes MM5Z15VT5G/SOD523/SC-79
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Nexperia

0
6 to 16 Weeks