1N4148 (In Stock:2000)

1N4148 Diode Overview: Features, Applications, Datasheet, Comparison & Buying Guide

1N4004 Key Specifications

Applications of 1N4004 Diode

• AC to DC rectification
• Power supply circuits
• Freewheeling diode for inductive loads
• Polarity protection

1N4004 Datasheet & Documentation

• 1N4004 Datasheet (Diodes Incorporated)

Applications of 1N4148 Diode

• High-speed switching circuits
• Signal rectification
• Protection circuits for MOSFETs and IGBTs
• RC timing circuits
• Logic level clamping

1N4148 Equivalent Diodes & Comparison

Here is a comparison of available 1N4148 equivalent diodes from trusted brands such as Microchip Technology, NXP Semiconductors, and ROHM Semiconductor. These alternatives offer similar performance for signal switching, fast switching applications, and general-purpose use.

Note: The above equivalents maintain the core features of the original 1N4148 diode, including fast reverse recovery time and small signal switching capabilities. Choose the right version according to your application requirements and package preferences.

Example Circuit: RC Delay Using 1N4148

This circuit introduces a time delay using a resistor, capacitor, and 1N4148 diode for quick discharge path. Common in timing applications, alarms, and power-on reset circuits.

1N4148 Diode Frequently Asked Questions (FAQ)

• Q: Can I use 1N4148 for power rectification?
  A: Not recommended. It is designed for signal-level applications up to 300mA only.
• Q: Is 1N4148 suitable for high-speed switching?
  A: Yes, it features a 4ns typical reverse recovery time, ideal for fast digital circuits.
• Q: What is the difference between 1N4148 and 1N5819?
  A: 1N5819 is a Schottky diode, lower voltage drop but lower reverse voltage. 1N4148 is better for logic-level signals.
• Q: Can 1N4148 replace 1N4007?
  A: No, 1N4007 is for higher current and voltage rectification, much slower switching.

Watch 1N4148 Diode Explained (Video)

1N4148 Diode Selection Guide

If you need a fast-switching diode for general signal applications, 1N4148 is a cost-effective and widely available choice. However, for high-current or high-voltage applications, consider alternatives like 1N5819 or 1N4007.

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