1N4148 Fast Switching Signal Diode (1W / 1/2W DO-35 DIP Package)
The 1N4148 High-Speed Switching Signal Diode in a glass DO-35 axial package is an industry-standard silicon epitaxial diode engineered for high-frequency signal processing and fast-switching applications. Featuring an ultra-fast reverse recovery time (t_rr) of under 4ns, a maximum continuous forward current (I_F) of 300mA, and a repetitive peak reverse voltage (V_RRM) of 100V, it provides reliable high-speed operation up to 100MHz. It is an essential component for digital logic switching, flyback voltage clamping, signal rectification, wave shaping, and sensor input protection in Arduino, robotics, and audio circuits.
₹ 2
₹ 10
This diode is designed for rapid switching applications and low-current signal control in electronic circuits.
Key Features
- High-speed switching diode
- Low forward voltage drop
- Fast reverse recovery time
- Suitable for signal and logic circuits
- Compact DO-35 glass package
- Reliable and widely used component
- Ideal for protection and waveform shaping
- Compatible with breadboard and PCB
Technical Specifications
| Parameter | Specification |
|---|---|
| Diode Type | Switching Diode |
| Model | 1N4148 |
| Package Type | DO-35 Glass |
| Reverse Voltage | 75V (max) |
| Forward Current | 150 mA (max) |
| Forward Voltage Drop | ~0.7V |
| Recovery Time | Very fast (~4 ns) |
| Power Rating | 1/2 W (approx. handling capacity) |
| Application Type | Signal switching |
How to Use
- Connect diode in correct polarity (anode and cathode)
- Use in series or parallel depending on circuit design
- Use for signal direction control or protection
- Avoid high current power applications
- Ensure correct orientation (strip indicates cathode)
- Test in switching or logic circuits
Applications
- High-speed switching circuits
- Signal clipping and clamping
- Logic protection circuits
- Arduino and microcontroller interfaces
- Waveform shaping circuits
- Communication systems
- DIY electronics and prototyping
Package Includes
1 * Zener Diode 1N4148 1/2W - Switching Diode
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