Zener Diode – Voltage Regulator Diode for Overvoltage Protection & Reference Applications
The Zener Diode is a specialized semiconductor component used for voltage regulation and overvoltage protection in electronic circuits. It allows normal forward current flow but limits reverse voltage to a defined breakdown value, making it ideal for power supplies, clamping circuits, and logic level protection.
 
Key Features:
Accurate Voltage Regulation
Maintains a fixed voltage across the load once the reverse breakdown voltage is reached.
Compact DO-35 Package
Easy to integrate into breadboards or PCBs, perfect for compact and DIY circuits.
Fast Switching Response
Protects sensitive components by quickly reacting to voltage spikes.
Available in Multiple Voltages
Common values include 3.3V, 5.1V, 6.2V, 9.1V, 12V, and 15V for versatile use.
Low Power Dissipation
Ideal for low to medium power applications in embedded electronics.
 
Applications:
Voltage regulation in low-power power supplies
Reference voltage in analog circuits
Overvoltage protection for microcontrollers and ICs
Voltage clamping in digital systems
Transient suppression in communication lines
Educational and hobby electronics projects
 
Package Includes:
1 × Zener Diode 
 
Specifications (Example – 5.1V Zener):
Zener Voltage: 5.1V ±5%
Maximum Power Dissipation: 500 milliwatts
Reverse Leakage Current: 1 microampere at 1V
Package Type: DO-35 (Glass Axial)
Operating Temperature Range: -65°C to +150°C
Polarity: Cathode marked with a band
 
Dimensions (DO-35 Package):
Body Length: 2.4 millimeters
Body Diameter: 1.5 millimeters
Lead Length: 28 millimeters
 
Weight: 0.1 grams
 
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