Taiwan Semiconductor Corporation
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1SMA5946HR3G
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1SMA5946HR3G

Product Overview

Category

The 1SMA5946HR3G 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: 16V
  • Power Dissipation: 5W
  • Package: DO-214AC (SMA)
  • Packaging/Quantity: Tape & Reel (3000 units per reel)

Specifications

  • Reverse Standoff Voltage: 16V
  • Breakdown Voltage Range: 17.8V - 19.7V
  • Maximum Reverse Leakage Current: 1µA
  • Maximum Reverse Surge Current: 40A

Detailed Pin Configuration

The 1SMA5946HR3G has two pins, with the anode connected to the positive terminal and the cathode connected to the negative terminal.

Functional Features

  • Provides stable voltage regulation
  • Offers transient overvoltage protection
  • Fast response time

Advantages

  • High power dissipation capability
  • Small form factor
  • Wide operating temperature range

Disadvantages

  • Limited breakdown voltage options
  • Sensitive to reverse surge currents

Working Principles

The 1SMA5946HR3G operates based on the principle of Zener breakdown, where it maintains a constant voltage across its terminals when operated within its specified parameters.

Detailed Application Field Plans

This diode is widely used in applications such as voltage clamping, surge suppression, and voltage regulation in various electronic circuits including power supplies, automotive electronics, and industrial control systems.

Detailed and Complete Alternative Models

  • 1SMA5932BT3G
  • 1SMA5934BT3G
  • 1SMA5935BT3G
  • 1SMA5936BT3G

In conclusion, the 1SMA5946HR3G is a surface mount silicon Zener diode that offers stable voltage regulation and transient suppression capabilities. Its small form factor and high power dissipation make it suitable for a wide range of electronic applications.

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Liste 10 perguntas e respostas comuns relacionadas à aplicação de 1SMA5946HR3G em soluções técnicas

  1. What is 1SMA5946HR3G and what is its application in technical solutions?

    • 1SMA5946HR3G is a high-reliability, low-voltage, transient voltage suppression (TVS) diode designed to protect sensitive electronics from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events. It is commonly used in technical solutions to safeguard electronic circuits from damage caused by voltage spikes.

  2. What are the key features of 1SMA5946HR3G that make it suitable for technical solutions?

    • The key features of 1SMA5946HR3G include its low clamping voltage, fast response time, high surge capability, and high reliability, making it an ideal choice for protecting sensitive electronic components in technical solutions.

  3. How does 1SMA5946HR3G provide protection in technical solutions?

    • 1SMA5946HR3G acts as a shunt to divert excessive current away from sensitive components when a voltage transient occurs, thereby limiting the voltage across the protected circuit and preventing damage.

  4. What are the typical applications of 1SMA5946HR3G in technical solutions?

    • Typical applications of 1SMA5946HR3G include protection of data lines, communication ports, power supplies, and other sensitive electronic circuits in industrial, automotive, telecommunications, and consumer electronics applications.

  5. What are the environmental and reliability specifications of 1SMA5946HR3G?

    • 1SMA5946HR3G is designed to meet stringent environmental and reliability standards, including compliance with RoHS requirements and high-temperature operation, making it suitable for use in harsh operating conditions.

  6. How does 1SMA5946HR3G perform in terms of ESD protection in technical solutions?

    • 1SMA5946HR3G offers robust ESD protection, with high surge capability and low clamping voltage, ensuring effective suppression of ESD events that could otherwise damage sensitive electronics.

  7. What are the mounting options available for 1SMA5946HR3G in technical solutions?

    • 1SMA5946HR3G is available in various package options, including SMA and SMB packages, offering flexibility for surface-mount applications in technical solutions.

  8. Can 1SMA5946HR3G be used in conjunction with other protective components in technical solutions?

    • Yes, 1SMA5946HR3G can be used in combination with other protective components such as varistors, gas discharge tubes, and fuses to provide comprehensive protection against transient voltage events in technical solutions.

  9. What are the thermal considerations for integrating 1SMA5946HR3G into technical solutions?

    • Thermal considerations for 1SMA5946HR3G include proper heat sinking and derating based on ambient temperature to ensure optimal performance and reliability in technical solutions.

  10. Are there any application notes or design guidelines available for incorporating 1SMA5946HR3G into technical solutions?

    • Yes, application notes and design guidelines are available from the manufacturer to assist engineers in effectively integrating 1SMA5946HR3G into their technical solutions, ensuring reliable protection against transient voltage events.