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1N4148 Diode - (Pack of 2)

SKU: HTARIIPA2G
The 1N4148 is a widely used high-speed switching diode designed for fast signal switching, protection, clipping, clamping, and general-purpose electronic applications. Known for its rapid switching speed and reliable performance, the 1N4148 is one of the most common diodes found in analog and digital circuits. The diode features a low forward voltage drop, low capacitance, and fast reverse recovery time,...
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Specifications

Specifications:

Component Type: Switching Diode
Model: 1N4148
Diode Type: Silicon High-Speed Switching Diode
Package Type: DO-35 Glass Axial
Mounting Type: Through-Hole
Maximum Repetitive Reverse Voltage (VRRM): 100V
Maximum DC Reverse Voltage (VR): 100V
Average Forward Current (IF): 200mA
Peak Forward Surge Current (IFSM): 1A
Forward Voltage Drop (VF): 1V Maximum @ 10mA
Reverse Leakage Current (IR): 5µA Maximum
Reverse Recovery Time (trr): 4ns Typical
Power Dissipation: 500mW
Junction Capacitance: 4pF Typical
Operating Junction Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
Lead Type: Axial Leads
Polarity Marking: Cathode Band

Additional Resources

1N4148 Diode.PDF

FAQ

1. What is the 1N4148 diode used for?

The 1N4148 is primarily used for high-speed switching, signal processing, clipping, clamping, protection circuits, and digital electronics applications.

2. What makes the 1N4148 different from a rectifier diode?

The 1N4148 is designed for very fast switching with a reverse recovery time of approximately 4ns, making it ideal for signal circuits, whereas rectifier diodes are optimized for handling higher currents and power conversion.

3. What is the maximum reverse voltage rating of the 1N4148?

The 1N4148 has a maximum reverse voltage rating of 100V.

4. What is the maximum continuous forward current of the 1N4148?

The diode can handle up to 200mA of continuous forward current under normal operating conditions.

5. How can the cathode terminal of the 1N4148 be identified?

The cathode terminal is marked with a black or colored band on one end of the glass diode body, indicating the negative side of the diode.

View full product details

The 1N4148 is a widely used high-speed switching diode designed for fast signal switching, protection, clipping, clamping, and general-purpose electronic applications. Known for its rapid switching speed and reliable performance, the 1N4148 is one of the most common diodes found in analog and digital circuits.

The diode features a low forward voltage drop, low capacitance, and fast reverse recovery time, making it ideal for high-frequency switching applications. It is commonly used in signal processing circuits, logic circuits, communication systems, oscillators, protection circuits, and microcontroller-based projects.

Packaged in a compact DO-35 glass axial package, the 1N4148 offers excellent durability and long-term reliability, making it suitable for both professional and hobby electronics applications.

Key Features

  • High-speed switching diode
  • Fast reverse recovery time
  • Low forward voltage drop
  • Low junction capacitance
  • High switching efficiency
  • Reliable silicon construction
  • Compact DO-35 glass package
  • Suitable for high-frequency applications
  • Low reverse leakage current
  • Excellent signal handling capability
  • Easy through-hole mounting
  • Ideal for digital and analog circuits
  • Widely available and cost-effective