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

1SMA120Z R3

Zener Diodes 120V
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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.

Taiwan Semiconductor

0
6 to 16 Weeks

December 2026

December 2026
	S	M	T	W	T	F	S
49	29	30	1	2	3	4	5
50	6	7	8	9	10	11	12
51	13	14	15	16	17	18	19
52	20	21	22	23	24	25	26
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9

AUD 0.1497

Multiples of: 1

120 V

5 %

1 uA

1 W

550 Ohms

+ 175 C

Single

Smd/Smt

DO - 214AC - 2

Cut Tape

- 55 C

2 mA

1Sm A

CMDZ5233B TR

Zener Diodes 250mW 5% Tolerance
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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.

Central Semiconductor

0
6 to 16 Weeks

December 2026

December 2026
	S	M	T	W	T	F	S
49	29	30	1	2	3	4	5
50	6	7	8	9	10	11	12
51	13	14	15	16	17	18	19
52	20	21	22	23	24	25	26
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9

AUD 0.15

Multiples of: 1

6 V

5 %

250 mW

7 Ohms

+ 150 C

Single

SMD/SMT

Reel , Cut Tape

- 65 C

20 mA

KDZTFTR3.9B

Diode Zener Single 4.136V 1000mW 2-Pin PMDU 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.

ROHM

0
6 to 16 Weeks

December 2026

December 2026
	S	M	T	W	T	F	S
49	29	30	1	2	3	4	5
50	6	7	8	9	10	11	12
51	13	14	15	16	17	18	19
52	20	21	22	23	24	25	26
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9

AUD 0.15

Multiples of: 3000

Bm14270muv-Lb

BZX585-B3V9

ZENER DIODE, 0.3W, 3.9V, SOD-523
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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

December 2026

December 2026
	S	M	T	W	T	F	S
49	29	30	1	2	3	4	5
50	6	7	8	9	10	11	12
51	13	14	15	16	17	18	19
52	20	21	22	23	24	25	26
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9

AUD 0.1502

Multiples of: 1

Cut Tape

BZG03C240-M3-18

Zener Diodes Uni-direc 300W Pppm SMA (DO-214AC)
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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

0
6 to 16 Weeks

December 2026

December 2026
	S	M	T	W	T	F	S
49	29	30	1	2	3	4	5
50	6	7	8	9	10	11	12
51	13	14	15	16	17	18	19
52	20	21	22	23	24	25	26
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9

AUD 0.1504

Multiples of: 6000

240 V

0.09 % /K to 0.13 % /K

1 uA

3 W

400 Ohms

+ 150 C

Single

Smd/Smt

DO - 214AC - 2

Cut Tape

2 mA

1SMA5931 R3G

Zener Diodes SMA 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.

Taiwan Semiconductor

0
6 to 16 Weeks

December 2026

December 2026
	S	M	T	W	T	F	S
49	29	30	1	2	3	4	5
50	6	7	8	9	10	11	12
51	13	14	15	16	17	18	19
52	20	21	22	23	24	25	26
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9

AUD 0.1507

Multiples of: 5

1SMA4740

Zener Diodes 1W,10V,5%,ZENER,SMA
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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.

Taiwan Semiconductor

0
6 to 16 Weeks

December 2026

December 2026
	S	M	T	W	T	F	S
49	29	30	1	2	3	4	5
50	6	7	8	9	10	11	12
51	13	14	15	16	17	18	19
52	20	21	22	23	24	25	26
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9

AUD 0.1508

Multiples of: 1

DO - 214AC - 2

Reel

SZMM3Z18VST1G

ON Semiconductor Zener Diodes ZEN REG 0.2W 18V
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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

0
6 to 16 Weeks

December 2026

December 2026
	S	M	T	W	T	F	S
49	29	30	1	2	3	4	5
50	6	7	8	9	10	11	12
51	13	14	15	16	17	18	19
52	20	21	22	23	24	25	26
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9

AUD 0.1508

Multiples of: 1

18 V

2 %

300 mW

45 Ohms

+ 150 C

Single

SMD/SMT

SOD - 323 - 2

Reel , Cut Tape

- 65 C

5 mA

AEC - Q101

MM3Z18VS

RD30UJ-T1-A

Diode Zener Single 29.21V 6% 150mW 2-Pin Ultra Super Mini-Mold
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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.

Renesas

0
6 to 16 Weeks

December 2026

December 2026
	S	M	T	W	T	F	S
49	29	30	1	2	3	4	5
50	6	7	8	9	10	11	12
51	13	14	15	16	17	18	19
52	20	21	22	23	24	25	26
53	27	28	29	30	31	1	2
2	3	4	5	6	7	8	9

AUD 0.1509

Multiples of: 1

6 %

Single

Surface Mount

HPZR-C5V6-QX

Zener Diodes HPZR-C5V6-Q/SOD123W/SOD2
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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

December 2026