Taiwan Semiconductor Corporation
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1SMA4741HM2G
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1SMA4741HM2G - Product Overview

Introduction

The 1SMA4741HM2G is a diode belonging to the category of surface mount devices. It is commonly used for voltage regulation and transient voltage suppression in various electronic circuits. This entry provides an overview of the basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models of the 1SMA4741HM2G diode.

Basic Information Overview

  • Category: Surface Mount Diode
  • Use: Voltage Regulation, Transient Voltage Suppression
  • Characteristics: Low Leakage Current, High Surge Capability
  • Package: SMA Package
  • Essence: Semiconductor Diode
  • Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Voltage Rating: 12V
  • Power Dissipation: 1.5W
  • Operating Temperature Range: -55°C to +150°C
  • Forward Voltage Drop: 0.9V at 1A
  • Reverse Standoff Voltage: 10.5V
  • Peak Pulse Current: 30A

Detailed Pin Configuration

The 1SMA4741HM2G diode has a standard SMA package with two pins. The pinout configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

  • Transient Voltage Suppression: Provides protection against voltage transients and surges.
  • Low Forward Voltage Drop: Ensures minimal power loss during operation.
  • Fast Response Time: Rapidly clamps transient voltages to safe levels.

Advantages and Disadvantages

Advantages

  • Effective voltage regulation and transient voltage suppression.
  • Low leakage current enhances efficiency.
  • High surge capability for reliable protection.

Disadvantages

  • Limited to low voltage applications.
  • Sensitive to reverse bias conditions.

Working Principles

The 1SMA4741HM2G operates based on the principle of utilizing its semiconductor properties to regulate and suppress transient voltages. When a transient voltage spike occurs, the diode quickly conducts, diverting excess current away from the protected circuit.

Detailed Application Field Plans

The 1SMA4741HM2G diode finds extensive use in various applications, including: - Power Supplies - Automotive Electronics - Industrial Control Systems - Telecommunication Equipment - Consumer Electronics

Detailed and Complete Alternative Models

Some alternative models to the 1SMA4741HM2G diode include: - 1SMA4740HM2G - 1SMA4742HM2G - 1SMA4743HM2G - 1SMA4744HM2G

In summary, the 1SMA4741HM2G diode is a surface mount device designed for effective voltage regulation and transient voltage suppression in a wide range of electronic applications.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av 1SMA4741HM2G i tekniska lösningar

  1. What is 1SMA4741HM2G and what is its application?

    • 1SMA4741HM2G is a Zener diode with a voltage of 11V and a power rating of 1W. It is commonly used for voltage regulation and transient protection in electronic circuits.

  2. What are the key features of 1SMA4741HM2G?

    • The key features include a low voltage drop, high surge capability, and a compact SMA package.

  3. How does 1SMA4741HM2G provide transient protection?

    • 1SMA4741HM2G can clamp voltage spikes to a safe level, protecting sensitive components from damage during transient events such as ESD (electrostatic discharge) or lightning strikes.

  4. In what types of technical solutions is 1SMA4741HM2G commonly used?

    • It is commonly used in power supplies, communication equipment, automotive electronics, and industrial control systems for voltage regulation and transient protection.

  5. What is the maximum current that 1SMA4741HM2G can handle?

    • The maximum current is typically around 100mA, making it suitable for low-power applications.

  6. Can 1SMA4741HM2G be used for reverse polarity protection?

    • Yes, it can be used for reverse polarity protection by placing it in series with the power supply input.

  7. What are the temperature considerations for using 1SMA4741HM2G?

    • The operating and storage temperature range for 1SMA4741HM2G is typically -55°C to +150°C, making it suitable for a wide range of environments.

  8. Is 1SMA4741HM2G RoHS compliant?

    • Yes, it is RoHS compliant, meaning it meets the requirements of the Restriction of Hazardous Substances directive.

  9. Can multiple 1SMA4741HM2G diodes be connected in parallel for higher power applications?

    • Yes, multiple diodes can be connected in parallel to increase the overall power handling capability.

  10. What are some best practices for incorporating 1SMA4741HM2G into a circuit design?

    • Best practices include ensuring proper heat dissipation, providing adequate PCB layout for low inductance, and following manufacturer recommendations for optimal performance.