1N4148 Switching Diode (300mA, 100V)

Overview

The 1N4148 is a high-speed small signal switching diode that has become an industry standard for fast switching and signal processing applications. With a peak repetitive reverse voltage of 100V and a continuous forward current of 300mA, this diode excels in high-frequency circuits where speed and reliability are critical. Its DO-35 axial package makes it easy to work with on breadboards, PCBs, and point-to-point wiring, making it a favorite among hobbyists and professionals alike.

Key Features

• Ultra-fast switching speed (typically 4ns) for high-frequency applications
• High reverse voltage (100V) for robust performance
• Low forward voltage drop (approximately 0.7V) for efficient operation
• Compact DO-35 axial package for easy through-hole mounting
• Wide operating temperature range (-65°C to +175°C) for versatile use
• RoHS compliant and lead-free for environmental safety

Technical Specifications

• Continuous Forward Current (IF): 300mA
• Peak Repetitive Reverse Voltage (VRRM): 100V
• Reverse Recovery Time (trr): 4ns (typical)
• Forward Voltage (VF): 0.7V (typical at 10mA)
• Package: DO-35 (axial lead)
• Operating Temperature Range: -65°C to +175°C

Applications & Use Cases

• Signal clamping and protection in digital circuits
• Logic level shifting and interfacing between microcontrollers (Arduino, ESP32, STM32, Raspberry Pi)
• Demodulation in communication circuits
• Freewheeling diodes for relay and motor drivers
• Reverse polarity protection in low-power circuits
• General-purpose rectification in low-current power supplies

What's Included

• 1x 1N4148 Switching Diode (DO-35 package)

Compatibility

• Compatible with all major microcontroller platforms: Arduino, ESP32, STM32, Raspberry Pi, and more
• Works with standard breadboards and prototyping boards
• Suitable for use with 5V and 3.3V logic systems

MOKWN Recommendation

For Egyptian makers and engineers, the 1N4148 is an essential component for any electronics toolkit. Its fast switching and reliability make it perfect for projects involving signal processing, sensor interfacing, and circuit protection. Stock up on these versatile diodes to keep your builds running smoothly. Whether you're a student, hobbyist, or professional, the 1N4148 from MOKWN is a smart choice.