Description
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
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Fast switching time (~4 ns)
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Low forward voltage drop (~1V at 10 mA)
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High reliability for general-purpose switching
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Compact axial lead package
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Suitable for digital and analog circuits
Variants
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Standard 1N4148 Diode (axial lead)
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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
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Logic and digital switching circuits
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High-speed signal processing
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Pulse circuits
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Polarity and over-voltage protection
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Electronics hobby and prototyping
Compatible Boards / Circuits
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Arduino / ESP32 signal routing circuits
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Embedded electronics modules
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Power supply signal conditioning
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Robotics and automation electronics
Reviews
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