1N4148W-E3-18 Diode: A High-Performance General Purpose Diode for Fast Switching

The 1N4148W-E3-18 diode, manufactured by General Semiconductor - Diodes Division, is a widely used and highly reliable general-purpose diode designed for a variety of electronic applications. This component belongs to the Discrete Semiconductor Products category, specifically falling under Diodes - Rectifiers - Single. Its robust performance characteristics make it an ideal choice for small-signal switching and other critical functions in modern electronics.

Key Features and Specifications

Manufacturer and Product Status

• Manufacturer: General Semiconductor - Diodes Division
• Product Status: Active
  This ensures that the 1N4148W-E3-18 remains readily available for purchase, making it a dependable option for long-term projects or stock replenishment.

Electrical Characteristics

Voltage Handling

• Voltage - DC Reverse (Vr) (Max): 75 V
  The diode can withstand up to 75 volts of reverse voltage, providing excellent protection against overvoltage conditions in circuits.

Current Handling

• Current - Average Rectified (Io): 150 mA
  With a maximum average rectified current of 150 milliamperes, this diode is well-suited for low-power applications where efficiency and reliability are paramount.

Forward Voltage

• Voltage - Forward (Vf) (Max) @ If: 1.2 V @ 100 mA
  A forward voltage drop of only 1.2 volts at 100 mA ensures minimal power loss during operation, contributing to higher overall circuit efficiency.

Reverse Recovery Time

• Reverse Recovery Time (trr): 4 ns
  This ultra-fast recovery time makes the 1N4148W-E3-18 suitable for high-frequency switching applications, such as digital circuits and pulse-width modulation (PWM).

Leakage Current

• Current - Reverse Leakage @ Vr: 100 A @ 100 V
  Low reverse leakage current ensures stable performance even under high reverse bias conditions, reducing unwanted energy dissipation.

Capacitance

• Capacitance @ Vr, F: 4 pF @ 0V, 1 MHz
  The low capacitance value minimizes loading effects on high-speed signals, preserving signal integrity in fast-switching environments.

Mechanical and Environmental Characteristics

Mounting Type

• Mounting Type: Surface Mount
  Surface-mount technology (SMT) allows for compact designs with improved thermal management and mechanical stability compared to through-hole components.

Package/Case

• Package/Case: SOD-123
  The SOD-123 package offers a small footprint while maintaining sufficient heat dissipation capabilities, making it ideal for space-constrained PCB layouts.

Operating Temperature

• Operating Temperature - Junction: 150 C (Max)
  This diode supports junction temperatures up to 150 C, ensuring reliable operation across a wide range of environmental conditions.

Applications

Given its versatile specifications, the 1N4148W-E3-18 diode is commonly employed in:

• Small-signal switching circuits
• High-speed rectification
• Protection circuits (e.g., flyback diodes)
• Digital logic gates
• Communication systems
• Power supply circuits
• Signal demodulation
• Automotive electronics

Why Choose the 1N4148W-E3-18?

The combination of its low forward voltage drop, fast reverse recovery time, and compact surface-mount design positions the 1N4148W-E3-18 as one of the most efficient and cost-effective solutions in its class. Whether you're designing consumer electronics, industrial equipment, or automotive systems, this diode delivers consistent performance without compromising on quality.

Comparison with Similar Diodes

The 1N4148W-E3-18 stands out from similar diodes due to its:

• Faster reverse recovery time (4ns) compared to standard diodes
• Lower forward voltage drop (1.2V) for improved efficiency
• Higher reverse voltage rating (75V) for better protection
• Smaller SOD-123 package for space-constrained designs

Technical Considerations for Designers

When implementing the 1N4148W-E3-18 in your designs, consider:

1. Ensure proper heat dissipation in high-frequency applications
2. Maintain clean PCB layouts to minimize parasitic capacitance
3. Consider using in pairs for full-wave rectification circuits
4. Implement proper ESD protection during handling

Conclusion

For engineers seeking a reliable, high-performance diode capable of meeting demanding application requirements, the 1N4148W-E3-18 stands out as an exceptional choice. Its balanced blend of electrical and mechanical properties ensures compatibility with a broad spectrum of electronic designs. By choosing this product, you gain access to a trusted solution backed by the expertise of General Semiconductor - Diodes Division.

Ready to integrate the 1N4148W-E3-18 into your next project? Visit our online store today to place your order and experience the quality and reliability this diode has to offer!