Introduction to 1N4148 Small Signal Switching Diodes
The Small Signal Switching Diodes 1N4148 by ON Semiconductor are one of the most widely used fast-switching components in low-current, high-speed digital and analog circuits. These high-performance diodes belong to the Semiconductors family and are engineered for rapid switching, signal processing, waveform clipping, and protection applications.
In this blog, we explore the technical specifications, features, applications, connection guidelines, and global purchasing options. You can order these diodes from www.xonelec.com, supplied by trusted distributors like x-on electronics.
Technical Specifications of 1N4148
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Manufacturer: ON Semiconductor
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Part Number: 1N4148
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Category: Semiconductors, Discrete Semiconductors, Diodes & Rectifiers, Small Signal Switching Diodes
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Reverse Voltage (VRRM): 100V
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Forward Current (IF): 300mA
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Reverse Recovery Time: ~4ns
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Package Type: DO-35
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Forward Voltage (VF): ~1V
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Operating Temperature Range: –65°C to +200°C
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Applications: High-speed switching, signal processing, clipping, protection
Known for fast recovery time and reliability, the 1N4148 is a global standard for small signal applications.
Key Features of 1N4148 Small Signal Switching Diodes
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Extremely fast reverse recovery (~4ns)
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Ideal for high-speed digital and analog circuits
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Robust DO-35 glass package
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Excellent reliability and long operational life
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Cost-effective and widely available
These features make the 1N4148 essential within the Small Signal Switching Diodes category and a versatile part of modern Semiconductors.
Applications of 1N4148 by ON Semiconductor
The 1N4148 is commonly used in:
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High-speed switching circuits
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Logic-level signal processing
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Waveform shaping and clipping
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Protection circuits
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Communication devices
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Timing and pulse circuits
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Consumer and industrial electronics
Its presence is strong across the Discrete Semiconductors and Diodes & Rectifiers categories thanks to exceptional speed and stability.
Wiring and Connection Overview
When using the 1N4148 Small Signal Switching Diode, follow these guidelines:
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Connect the anode to signal input
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Connect the cathode (banded end) to signal output/load
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Keep leads short to ensure optimal switching speed
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Avoid high-power circuits—this diode is optimized for small-signal use
Its compact DO-35 package provides easy and flexible PCB integration.
Use Case Scenario: High-Speed Logic Signal Switching
Scenario: A telecom equipment manufacturer required a fast diode for switching and waveform shaping.
Problem: Slow diodes caused signal delays and distorted pulses.
Solution: The 1N4148 by ON Semiconductor offered extremely low reverse recovery and strong signal integrity.
Result: Improved switching accuracy, enhanced timing precision, and better compatibility with high-speed digital logic.
This real-world example shows why Small Signal Switching Diodes like the 1N4148 remain industry favorites.
Also Available from Other Manufacturers
The 1N4148 diode is also manufactured by several well-known global brands, including:
These alternatives ensure broad availability and compatibility across various applications.
Download Datasheet for 1N4148
Looking for detailed switching performance, curves, and package specifications?
Download 1N4148 Datasheet
Why Buy from XON Electronics?
Choose xon electronics when purchasing Small Signal Switching Diodes, including the 1N4148:
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100% genuine ON Semiconductor components
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Global shipping to USA, India, Australia, Europe & more
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Wide selection of Semiconductors and Discrete Semiconductors
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Bulk ordering options for OEMs and manufacturers
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Fast, reliable delivery
Buy online at www.xonelec.com for worldwide support.
FAQ – 1N4148 Small Signal Switching Diodes
Q1. What is the switching speed of 1N4148?
Around 4ns reverse recovery.
Q2. Is it suitable for high-power rectification?
No, it is intended for small-signal applications.
Q3. What package does it come in?
DO-35 glass axial package.
Q4. Can it be used in protection circuits?
Yes, commonly used for signal protection.
Q5. Where can I purchase it globally?
At www.xonelec.com with global shipping.
Conclusion
The 1N4148 Small Signal Switching Diodes by ON Semiconductor deliver fast, reliable, and precise performance in digital and analog applications. As part of the Semiconductors, Discrete Semiconductors, Diodes & Rectifiers, and Small Signal Switching Diodes families, this diode remains an essential component for engineers worldwide.
Order it from www.xonelec.com with shipping to USA, India, Australia, Europe, and other regions.