A Zener diode is a type of diode that permits current to flow in the forward direction like a normal diode, but also in the reverse direction if the voltage is larger than the breakdown voltage known as "Zener knee voltage" or "Zener voltage." Zener diodes are widely used to regulate the voltage across a circuit. When connected in parallel with a variable voltage source so that it is reverse biased, a zener diode conducts when the voltage reaches the diode's reverse breakdown voltage. From that point it keeps the voltage at that value.

These devices are a low-cost solution for guarding against the effects of electrostatic discharge(ESD) in electronic systems and help original equipment designers comply with IEC 61000 4-2 specifications in many subassemblies worldwide. You can learn more about our range of Zener diode products by viewing series guide.




Series Watts Package Download
SMA5919B-SMA5956B 1.5W SMA / DO-214AC Download
SMB5919B-SMB5956B 1.5W SMB / DO-214AA Download
1N5919B-1N5956B 1.5W DO-41 Download
SMA4728A-SZ1330A 1W SMA / DO-214AC Download
SMAZ5V1-SMAZ39 1W SMA / DO-214AC Download
SML4728A-SMZ1330A 1W SOD-123 Download
1N4728A-Z1330A 1W DO-41 Download
SMA2EZ5.6D5-SMA2EZ330D5 2W SMA / DO-214AC Download
SMB2EZ5.6D5-SMB2EZ330D5 2W SMB / DO-214AA Download
2EZ5.6D5-2EZ330D5 2W DO-15 Download
SMA3EZ5.6D5-SMA3EZ200D5 3W SMA / DO-214AC Download
3EZ5.6D5-3EZ200D5 3W DO-15 Download
SMB3EZ5.6D5-SMB3EZ200D5 3W SMB / DO-214AA Download
SMC5338B-SMC5388B 5W SMC / DO-214AB Download
SMB5338B-SMB5388B 5W SMB / DO-214AA Download
1N5338B-1N5388B 5W DO-201 Download
1N5338B-1N5388B 5W DO-15 Download

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