Product Description
The 4.7V Zener Diode is a precision semiconductor designed to provide a stable reference voltage or over-voltage protection in electronic circuits. Unlike standard diodes that only allow current to flow in one direction, a Zener diode is specifically engineered to operate in the "Reverse Breakdown" region. When the voltage across it reaches 4.7V in reverse bias, it begins to conduct, effectively "clamping" the voltage at that level. This makes it an ideal component for regulating power supply rails for 5V-logic systems, protecting sensitive ADC (Analog-to-Digital Converter) inputs, and creating simple voltage references in battery-operated devices.
Key Features
Stable 4.7V Regulation: Provides a reliable voltage ceiling, perfect for protecting 5V microcontrollers like Arduino or ESP32 from small voltage spikes.
Sharp Breakdown Knee: Ensures a quick transition into the regulation state, minimizing voltage leakage below the 4.7V threshold.
Hermetic DO-35 Glass Package: Offers excellent thermal stability and environmental protection for the delicate silicon junction.
Compact Axial Design: Standard through-hole leads allow for easy mounting on breadboards and high-density PCBs.
Low Dynamic Impedance: Maintains a consistent voltage even when the current through the diode fluctuates slightly.