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1N4621UR
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1N4621UR - Diode Encyclopedia Entry

Introduction

The 1N4621UR is a diode belonging to the semiconductor family. This entry provides an overview of the product, including its category, use, characteristics, package, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Semiconductor Diode
  • Use: Rectification, voltage regulation, signal demodulation
  • Characteristics: High reliability, low forward voltage drop, fast switching speed
  • Package: DO-41 (Axial Lead)
  • Essence: A silicon rectifier diode with ultrafast recovery time
  • Packaging/Quantity: Typically available in reels or bulk packaging

Specifications

  • Forward Voltage Drop: 0.7V
  • Reverse Voltage: 50V
  • Maximum Continuous Forward Current: 1A
  • Recovery Time: < 500ns
  • Operating Temperature Range: -65°C to +175°C

Detailed Pin Configuration

The 1N4621UR diode has two leads, anode, and cathode, which are identified by the color band on the body of the diode. The anode is connected to the positive side of the circuit, while the cathode is connected to the negative side.

Functional Features

  • Ultrafast Recovery Time: Enables high-speed switching applications
  • Low Forward Voltage Drop: Minimizes power loss
  • High Reliability: Suitable for critical electronic systems

Advantages and Disadvantages

Advantages

  • Fast switching speed
  • Low power dissipation
  • High surge current capability

Disadvantages

  • Limited reverse voltage rating
  • Sensitivity to temperature variations

Working Principles

The 1N4621UR operates based on the principle of unidirectional conduction, allowing current flow in only one direction. When forward-biased, it conducts current with minimal resistance, while in reverse bias, it blocks the flow of current.

Detailed Application Field Plans

The 1N4621UR diode finds extensive use in various electronic circuits, including: - Power supplies - Voltage regulators - Signal demodulation circuits - Switching power converters - Flyback diode in relay and solenoid circuits

Detailed and Complete Alternative Models

  • 1N5819: Schottky Barrier Diode
  • 1N4001: General Purpose Rectifier Diode
  • 1N4148: Small Signal Diode
  • 1N5408: Standard Recovery Rectifier Diode

In conclusion, the 1N4621UR diode offers fast switching speed, low forward voltage drop, and high reliability, making it suitable for various electronic applications. Its limitations include a restricted reverse voltage rating and sensitivity to temperature changes. Understanding its specifications, pin configuration, functional features, and application field plans is crucial for effective utilization in electronic designs.

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技術ソリューションにおける 1N4621UR の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is the 1N4621UR diode used for?

    • The 1N4621UR diode is commonly used for voltage regulation and protection in various electronic circuits.

  2. What are the key specifications of the 1N4621UR diode?

    • The 1N4621UR is a 3.3V, 500mW Zener diode with a tolerance of ±5%.

  3. How can I identify the cathode and anode of the 1N4621UR diode?

    • The cathode of the 1N4621UR diode is typically marked with a band or line on the body of the diode.

  4. Can the 1N4621UR diode be used for overvoltage protection?

    • Yes, the 1N4621UR diode can be used to protect sensitive components from overvoltage by shunting excess current when the voltage exceeds its breakdown voltage.

  5. What are some common applications of the 1N4621UR diode?

    • The 1N4621UR diode is often used in voltage regulators, voltage clamping circuits, and as a reference voltage source.

  6. What is the maximum power dissipation of the 1N4621UR diode?

    • The 1N4621UR diode has a maximum power dissipation of 500mW.

  7. Is the 1N4621UR diode suitable for low-power applications?

    • Yes, the 1N4621UR diode's low power dissipation makes it suitable for low-power applications.

  8. Can the 1N4621UR diode be used in reverse bias?

    • Yes, the 1N4621UR diode can be used in reverse bias for its intended applications such as voltage regulation and protection.

  9. What is the temperature coefficient of the 1N4621UR diode?

    • The 1N4621UR diode typically has a temperature coefficient of approximately -2mV/°C.

  10. Are there any precautions to consider when using the 1N4621UR diode?

    • It's important to ensure that the maximum power dissipation and voltage ratings are not exceeded, and to handle the diode with proper ESD precautions to avoid damage during handling and installation.