5.1V (5V1) 1/4W Zener Diode Set – Precision Logic Clamp (10 Piece)
Protect your 5V digital systems with the industry-standard 5.1V (5V1) 1/4W Zener Diode Set. This 10-piece value pack is specifically designed for microcontroller protection (Arduino, ESP32, STM32) and logic level clamping. With its precision 5.1V breakdown rating, it provides a safe voltage limit for your digital pins, preventing damage from power surges or inductive spikes. Lightweight and compact, these diodes are a mandatory item for every digital electronics toolkit. Ensure your expensive microprocessors are safe with this professional-grade 10-pack of Zener diodes.
In stock
₹50.00 ₹100.00
In stock
Product Overview
The 5.1V Zener diode (5V1) is the quintessential protective component for 5V digital logic. Because its breakdown voltage is perfectly tuned to the standard logic high of most ICs, it provides immediate shunt protection without interfering with normal data signals. These 1/4 Watt diodes are engineered for low leakage current and high-speed response, making them ideal for high-speed digital buses and sensitive sensor interfaces.
Key Features
- 5.1V Zener Voltage: The perfect match for 5V logic level protection.
- 1/4 Watt (250mW): Optimized for signal level and small logic paths.
- 10 Piece Value Set: Essential for prototyping multiple digital inputs.
- Sharp Zener Knee: Ensures fast and reliable activation during surges.
- Easy Installation: Standard DO-35 axial package for all PCBs.
Benefits
Using a 5V1 Zener diode acts as a ‘firewall’ for your digital hardware. If your power supply fails or a high-voltage spike occurs, the Zener shunts the energy away from your CPU/MCU, potentially saving hundreds of dollars in hardware. This 10-piece pack is an extremely affordable insurance policy for your electronics projects. It’s an essential part for anyone building digital interfaces or IoT devices. Experience the standard in digital logic protection.
Technical Specifications
- Zener Voltage: 5.1V
- Power Rating: 0.25W
- Quantity: 10 Pieces
- Package: DO-35 Axial
Applications
Microcontroller input protection, USB port clamping, 5V rail regulation, and basic digital-to-analog reference circuits.
Package Contents
10 x 5.1V 1/4W Zener Diodes.
Why Buy This Product?
EDEPOT INDIA provides genuine semiconductors with low tolerance ratings. We prioritize component safety and performance in every part we supply.
Frequently Asked Questions
Q: Why 5.1V instead of exactly 5.0V?
A: A 5.0V Zener might start leaking at 4.9V, which could interfere with your 5V logic signals. 5.1V ensures a clean signal at 5V while providing immediate protection if it goes over.
Q: Is this compatible with breadboards?
A: Yes, it is a standard through-hole component that fits perfectly on all breadboards.
8.2V (8V2) 1/4W Zener Diode Set - Voltage Control Value Pack (10 Piece) 


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