Taiwan Semiconductor Corporation
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1SMA4757HR3G
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1SMA4757HR3G

Product Overview

The 1SMA4757HR3G belongs to the category of semiconductor devices and is specifically designed for use in voltage clamping applications. This product is characterized by its high reliability, low leakage current, and fast response time. It is typically packaged in a surface mount DO-214AC (SMA) package and is available in tape and reel packaging with a quantity of 3000 units per reel.

Specifications

  • Voltage Rating: 36V
  • Power Dissipation: 5.0W
  • Operating Temperature Range: -55°C to +150°C
  • Breakdown Voltage: 40.2V to 44.7V
  • Peak Pulse Power: 5000W

Detailed Pin Configuration

The 1SMA4757HR3G features a standard SMA package with two pins. Pin 1 is the anode, while pin 2 is the cathode.

Functional Features

This product provides effective overvoltage protection by clamping the voltage to a safe level during transient events. It offers fast response times to protect sensitive electronic components from damage.

Advantages and Disadvantages

Advantages

  • High reliability
  • Low leakage current
  • Fast response time
  • Wide operating temperature range

Disadvantages

  • Limited breakdown voltage options
  • Relatively high power dissipation

Working Principles

The 1SMA4757HR3G operates based on the principle of avalanche breakdown, where it rapidly conducts excess current away from the protected circuit when the voltage exceeds the clamping level.

Detailed Application Field Plans

This product is commonly used in various electronic systems such as power supplies, communication equipment, automotive electronics, and industrial control systems to protect against voltage transients and surges.

Detailed and Complete Alternative Models

  • 1SMA4744HR3G
  • 1SMA4766HR3G
  • 1SMA4788HR3G

In conclusion, the 1SMA4757HR3G is a reliable and efficient voltage clamping device suitable for a wide range of applications, despite its limited breakdown voltage options and relatively high power dissipation. Its fast response time and low leakage current make it a valuable component in protecting sensitive electronic circuits from transient events.

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de 1SMA4757HR3G en soluciones técnicas

  1. What is 1SMA4757HR3G?

    • 1SMA4757HR3G is a high-reliability, surface mount, silicon transient voltage suppressor diode designed to protect sensitive electronics from voltage transients induced by lightning and other transient voltage events.

  2. What is the maximum peak pulse power of 1SMA4757HR3G?

    • The maximum peak pulse power of 1SMA4757HR3G is 500 watts.

  3. What is the breakdown voltage of 1SMA4757HR3G?

    • The breakdown voltage of 1SMA4757HR3G is 57 volts.

  4. What are the typical applications for 1SMA4757HR3G?

    • Typical applications for 1SMA4757HR3G include protection of telecommunications equipment, data lines, power supplies, and other sensitive electronic devices from voltage transients.

  5. What is the operating temperature range of 1SMA4757HR3G?

    • The operating temperature range of 1SMA4757HR3G is -55°C to +150°C.

  6. What is the package type of 1SMA4757HR3G?

    • 1SMA4757HR3G is available in a DO-214AC (SMA) package.

  7. What is the clamping voltage of 1SMA4757HR3G?

    • The clamping voltage of 1SMA4757HR3G is typically 92.6 volts at 10A.

  8. Is 1SMA4757HR3G RoHS compliant?

    • Yes, 1SMA4757HR3G is RoHS compliant.

  9. What are the key features of 1SMA4757HR3G?

    • Key features of 1SMA4757HR3G include low clamping voltage, fast response time, and high surge capability.

  10. Can 1SMA4757HR3G be used in automotive applications?

    • Yes, 1SMA4757HR3G can be used in automotive applications where protection against voltage transients is required.

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