1N4148 Diode

admin — Thu, 20 Nov 2025 19:52:05 +0000

The 1N4148 is a reliable, high-speed diode with fast switching capability, capable of operating in circuits requiring switching frequencies up to 100 MHz. It’s widely used in logic circuits, signal routing, and low-current rectification. Its compact DO-35 axial package and robust performance make it a common choice for both hobbyist and industrial electronics.

Key Features

Fast switching time (~4 ns)
Low forward voltage drop (~1V at 10 mA)
High reliability for general-purpose switching
Compact axial lead package
Suitable for digital and analog circuits

Variants

Standard 1N4148 Diode (axial lead)
1N4148 SMD version for PCB assembly

Specifications

Feature	Details
Maximum Repetitive Peak Reverse Voltage	100V
Maximum Forward Current	300 mA
Maximum Surge Current	2A (1 μs pulse)
Forward Voltage Drop	1V @ 10 mA
Reverse Recovery Time	4 ns
Package	DO-35 Axial Lead / SMD
Operating Temperature	-65°C to +175°C

Applications

Logic and digital switching circuits
High-speed signal processing
Pulse circuits
Polarity and over-voltage protection
Electronics hobby and prototyping

Compatible Boards / Circuits

Arduino / ESP32 signal routing circuits
Embedded electronics modules
Power supply signal conditioning
Robotics and automation electronics

1N4007 Diode

admin — Thu, 20 Nov 2025 19:52:04 +0000

The 1N4007 is a silicon rectifier diode capable of handling high voltages up to 1000V and forward currents up to 1A. It is commonly used in AC-to-DC rectification, polarity protection, and general electronic circuits. Its robust design and reliability make it a staple component in both hobbyist and industrial electronics.