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1SMA4740HR3G
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1SMA4740HR3G

Product Overview

Category

The 1SMA4740HR3G belongs to the category of surface mount silicon Zener diodes.

Use

It is commonly used for voltage regulation and transient suppression in electronic circuits.

Characteristics

  • Voltage: 10V
  • Power Dissipation: 1.5W
  • Package: SMA
  • Zener Voltage Tolerance: ±5%
  • Operating Temperature Range: -65°C to +150°C

Packaging/Quantity

The 1SMA4740HR3G is typically available in tape and reel packaging with quantities varying based on supplier specifications.

Specifications

  • Zener Voltage: 10V
  • Reverse Standoff Voltage: 10V
  • Forward Voltage: 1.2V
  • Reverse Leakage Current: 5µA
  • Maximum Surge Current: 40A
  • Maximum Reverse Leakage Current: 1µA

Detailed Pin Configuration

The 1SMA4740HR3G typically has two pins, with the anode connected to the positive side and the cathode connected to the negative side of the circuit.

Functional Features

  • Precise voltage regulation
  • Transient voltage suppression
  • Low leakage current
  • High surge current capability

Advantages

  • Small form factor
  • Wide operating temperature range
  • High reliability
  • RoHS compliant

Disadvantages

  • Limited power dissipation capability
  • Voltage tolerance may not be suitable for highly precise applications

Working Principles

The 1SMA4740HR3G operates based on the principle of the Zener effect, where it maintains a constant voltage across its terminals when reverse biased.

Detailed Application Field Plans

The 1SMA4740HR3G is widely used in: - Voltage regulation in power supplies - Overvoltage protection in electronic circuits - Surge suppression in telecommunications equipment - Automotive electronics for transient protection

Detailed and Complete Alternative Models

Some alternative models to the 1SMA4740HR3G include: - 1N4740A - BZX85C10 - MMSZ5240B

This provides a comprehensive overview of the 1SMA4740HR3G, covering its basic information, specifications, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

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Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät 1SMA4740HR3G :n soveltamiseen teknisissä ratkaisuissa

  1. What is 1SMA4740HR3G?

    • 1SMA4740HR3G is a high-reliability, surface mount silicon zener diode designed for transient voltage protection in a variety of applications.

  2. What is the maximum power dissipation of 1SMA4740HR3G?

    • The maximum power dissipation of 1SMA4740HR3G is 1.5 watts.

  3. What is the breakdown voltage of 1SMA4740HR3G?

    • The breakdown voltage of 1SMA4740HR3G is 10 volts.

  4. What are the typical applications of 1SMA4740HR3G?

    • Typical applications of 1SMA4740HR3G include overvoltage and surge protection in consumer electronics, automotive systems, industrial equipment, and telecommunications devices.

  5. What is the operating temperature range of 1SMA4740HR3G?

    • The operating temperature range of 1SMA4740HR3G is -55°C to +150°C.

  6. What is the package type of 1SMA4740HR3G?

    • 1SMA4740HR3G is available in a DO-214AC (SMA) package.

  7. What is the reverse standoff voltage of 1SMA4740HR3G?

    • The reverse standoff voltage of 1SMA4740HR3G is 8.55 volts.

  8. Is 1SMA4740HR3G RoHS compliant?

    • Yes, 1SMA4740HR3G is RoHS compliant.

  9. What are the key features of 1SMA4740HR3G?

    • The key features of 1SMA4740HR3G include low leakage current, fast response time, and high reliability.

  10. Can 1SMA4740HR3G be used for ESD protection?

    • Yes, 1SMA4740HR3G can be used for electrostatic discharge (ESD) protection in sensitive electronic circuits.