5V Zener Diode 0.5W (1/2 Watt) – Voltage Regulator Diode for DIY Electronics

Description

The 5V Zener Diode (0.5W / ½ Watt) is one of the most widely used diodes in power regulation and protection circuits. It is specially designed to maintain a controlled reference voltage, making it ideal for microcontroller boards, power supply modules, sensors, and general DIY electronics projects. Although it is commonly referred to as a “5V Zener diode,” the actual nominal breakdown voltage is typically 5.1V, which falls within a standard 5% tolerance range. This means its operating range is accurate enough to be used safely in all 5V-based circuits.

This diode offers excellent performance when reverse biased and keeps the voltage stable even under varying load conditions. Because of its reliable characteristics, it becomes extremely useful in designing voltage limiters, clipping circuits, reverse polarity protection, and other regulation tasks. The 0.5W (½ Watt) rating ensures that it can handle small to medium power-level circuits without overheating or failing.

Its compact and standard axial design allows it to be easily mounted on breadboards, prototyping boards, and full PCBs. It is often used with microcontrollers such as Arduino, ESP8266, Raspberry Pi peripherals, and many other low-voltage boards that need stable input protection. Whether you are learning electronics, working on a repair project, or designing a new circuit, this diode is a reliable component to keep your 5V line safe.

At Rafiq Electronics, we provide high-quality and original Zener diodes that are fully tested for accuracy and long-term stability. Our components are trusted by hobbyists, students, and technicians across Pakistan for consistent performance and durability. This 5V 0.5W Zener diode is ideal for voltage stabilization projects where precision and reliability are essential.

⭐ Key Features

• ✅ Breakdown Voltage: 5.1V (within 5% tolerance)

• ⚡ Commonly used for 5V voltage protection and regulation

• 🔧 Power Rating: 0.5W (1/2 Watt)

• 📏 Axial Lead Design – Easy for PCB & breadboard use

• 🛡️ Protects microcontrollers & sensitive circuits

• 🔌 Ideal for 5V logic systems and linear power setups

• 🧰 Perfect for DIY projects, repairing, and small electronics

• 🏪 Original and reliable quality from Rafiq Electronics

If your project requires stable 5V reference control or if you need to protect your circuits from voltage spikes, this Zener diode is the perfect and economical solution. Rafiq Electronics ensures that every component is of high quality and suitable for educational, hobby, and professional use.