Littelfuse Inc.
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Q4015L555
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Q4015L555 Product Overview

Introduction

The Q4015L555 is a semiconductor device that belongs to the category of silicon-controlled rectifiers (SCRs). This component is widely used in various electronic applications due to its unique characteristics and functional features.

Basic Information Overview

  • Category: Semiconductor Device
  • Use: Power Control and Regulation
  • Characteristics: High Voltage and Current Handling Capabilities, Low Triggering Current, Robust Construction
  • Package: TO-220AB
  • Essence: Efficient Power Management
  • Packaging/Quantity: Typically Sold in Reel or Bulk Packaging

Specifications

  • Voltage Rating: 400V
  • Current Rating: 15A
  • Gate Trigger Current (Max): 200µA
  • On-State Voltage (Max): 1.7V
  • Holding Current (Min): 10mA
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The Q4015L555 SCR has a standard TO-220AB package with three leads: 1. Anode (A) 2. Cathode (K) 3. Gate (G)

Functional Features

  • Low Triggering Current: Enables precise control over switching operations.
  • High Voltage and Current Handling: Suitable for power regulation in demanding applications.
  • Robust Construction: Ensures reliability and longevity in operation.

Advantages and Disadvantages

Advantages

  • Efficient power management
  • Reliable performance in high-power applications
  • Low triggering current requirement

Disadvantages

  • Sensitive to voltage and current spikes
  • Requires careful handling during installation

Working Principles

The Q4015L555 operates based on the principles of controlled rectification. When a small current is applied to the gate terminal, it allows a larger current to flow from the anode to the cathode, effectively controlling the power flow through the device.

Detailed Application Field Plans

The Q4015L555 finds extensive use in the following application fields: - Power Supplies: Regulating and controlling power delivery in various types of power supplies. - Motor Control: Enabling precise speed and torque control in motor drive systems. - Lighting Control: Dimming and regulating lighting systems in industrial and commercial settings.

Detailed and Complete Alternative Models

  • Q4010LH5
  • Q4025LH6
  • Q4030LH7
  • Q4040LH8

In conclusion, the Q4015L555 SCR offers efficient power management and reliable performance in high-power applications, making it a versatile component in the field of electronics.

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Énumérez 10 questions et réponses courantes liées à l'application de Q4015L555 dans les solutions techniques

  1. What is Q4015L555?

    • Q4015L555 is a silicon-controlled rectifier (SCR) commonly used in electronic circuits for controlling power.

  2. What are the typical applications of Q4015L555?

    • Q4015L555 is often used in dimmer switches, motor speed control, and other power control applications.

  3. What is the maximum voltage and current rating of Q4015L555?

    • The maximum voltage rating is 400V and the maximum current rating is 15A.

  4. How does Q4015L555 function in a dimmer switch circuit?

    • Q4015L555 can be used to control the amount of power delivered to a light bulb, allowing for adjustable brightness.

  5. Can Q4015L555 be used for motor speed control?

    • Yes, Q4015L555 can be used to regulate the speed of AC motors by controlling the power supplied to them.

  6. What are the key features of Q4015L555?

    • Some key features include high surge capability, glass passivated junctions, and sensitive gate triggering.

  7. Are there any specific heat dissipation requirements for Q4015L555?

    • It is recommended to use a proper heat sink to dissipate heat when operating Q4015L555 at higher currents.

  8. Is Q4015L555 suitable for use in industrial equipment?

    • Yes, Q4015L555 is commonly used in industrial machinery and equipment for power control applications.

  9. What are the typical failure modes of Q4015L555?

    • Common failure modes include overvoltage stress, overcurrent conditions, and excessive heat leading to thermal breakdown.

  10. Are there any important considerations for integrating Q4015L555 into a circuit design?

    • It's crucial to ensure proper isolation, heat dissipation, and protection against voltage spikes when integrating Q4015L555 into a circuit design.