1N4148 SOD-80 High-Speed Switching Diode
The 1N4148 diode is a widely used small-signal fast-switching diode. It is known for its ability to handle low currents and its quick switching characteristics, making it ideal for applications involving signal processing, protection, and switching circuits. The 1N4148 SOD-80 diode is a compact high-speed switching diode in an SMD (Surface Mount) SOD-80 package, designed for fast logic signal switching, voltage protection, and general-purpose rectification in surface-mounted circuits.
₹ 3 ₹10
10
Key Features:
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Fast switching diode with ~4ns recovery time
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Compact SOD-80 (DO-213AA) surface mount package
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Max forward current: 300mA, reverse voltage: 100V
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Ideal for SMT PCBs, Arduino, and digital signal switching
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Compatible with automated pick & place and reflow soldering
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Commonly used for flyback protection, logic circuits, and low-power rectification
Product Description (Detailed):
The 1N4148 SOD-80 diode is a fast-switching, general-purpose silicon signal diode housed in a compact surface-mount SOD-80 package. It’s designed to provide high-speed switching performance with minimal power loss, making it perfect for space-constrained SMT PCB designs.
Widely used in logic gate protection, analog switching, flyback circuits, and reverse polarity protection, the 1N4148 is reliable and widely supported by Arduino and embedded systems.
The SOD-80 form factor supports high-density PCB layouts and is suitable for automated SMT assembly processes.
Technical Specifications:
| Parameter | Specification |
|---|---|
| Diode Type | Silicon Switching Diode |
| Package Type | SOD-80 (DO-213AA, surface mount) |
| Reverse Voltage (V<sub>RRM</sub>) | 100V |
| Max Forward Current (I<sub>F</sub>) | 300 mA |
| Peak Surge Current | 1.0 A (non-repetitive) |
| Forward Voltage (V<sub>F</sub>) | ~1.0V @ 10mA |
| Reverse Recovery Time (t<sub>rr</sub>) | 4 ns |
| Operating Temperature | -65°C to +175°C |
| Mounting Type | Surface Mount (Reflow Solderable) |
How to Use:
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Anode (non-marked end) connects to positive voltage.
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Cathode (marked end) connects to load or return.
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Solder onto SMD pads using reflow or hot air soldering.
Used in logic level signal routing, clamping, and reverse polarity protection for SMD designs.
Applications:
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Surface-mount flyback diode across inductive loads
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Signal routing and rectification in compact logic boards
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Over-voltage or reverse polarity protection
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High-speed switching in RF and analog signal circuits
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SMT-based Arduino, STM32, or ESP32 projects
Package Includes:
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1 × 1N4148 SOD-80 Switching Diodes
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