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1SMA4743 R3G

1SMA4743 R3G

Product Overview

Category

The 1SMA4743 R3G belongs to the category of Zener diodes.

Use

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

Characteristics

  • Zener voltage: 13V
  • Power dissipation: 1.5W
  • Package type: SMA
  • RoHS compliant

Package

The 1SMA4743 R3G is typically available in a surface mount package.

Packaging/Quantity

It is usually supplied in reels with a quantity varying based on manufacturer specifications.

Specifications

  • Zener Voltage: 13V
  • Power Dissipation: 1.5W
  • Forward Voltage: 1.2V
  • Reverse Current: 5µA
  • Operating Temperature Range: -65°C to +150°C

Detailed Pin Configuration

The 1SMA4743 R3G 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
  • High power dissipation capability

Advantages

  • Reliable voltage regulation
  • Small form factor
  • RoHS compliant

Disadvantages

  • Limited power dissipation compared to higher wattage diodes
  • Sensitive to temperature variations

Working Principles

The 1SMA4743 R3G operates based on the Zener effect, where it maintains a constant voltage across its terminals when reverse biased within its specified voltage range.

Detailed Application Field Plans

This diode is widely used in various electronic circuits such as voltage regulators, surge protectors, and overvoltage clamps in automotive, industrial, and consumer electronics applications.

Detailed and Complete Alternative Models

  • 1N4743A
  • BZX55C13
  • MMSZ5245B

In conclusion, the 1SMA4743 R3G Zener diode offers precise voltage regulation and transient suppression capabilities, making it suitable for a wide range of electronic applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 1SMA4743 R3G v technických řešeních

  1. What is 1SMA4743 R3G?

    • 1SMA4743 R3G is a surface mount, high-power transient voltage suppressor diode designed to protect sensitive electronics from voltage transients induced by lightning, inductive load switching, and electrostatic discharge.
  2. What is the maximum peak pulse power of 1SMA4743 R3G?

    • The maximum peak pulse power of 1SMA4743 R3G is 500 watts.
  3. What is the breakdown voltage of 1SMA4743 R3G?

    • The breakdown voltage of 1SMA4743 R3G is 15.3 volts.
  4. What are the typical applications of 1SMA4743 R3G?

    • Typical applications of 1SMA4743 R3G include protection of telecommunications equipment, automotive electronics, industrial control systems, and consumer electronics from voltage surges.
  5. What is the operating temperature range of 1SMA4743 R3G?

    • The operating temperature range of 1SMA4743 R3G is -55°C to +150°C.
  6. What is the clamping voltage of 1SMA4743 R3G?

    • The clamping voltage of 1SMA4743 R3G at its peak pulse current is typically 24.4 volts.
  7. Is 1SMA4743 R3G RoHS compliant?

    • Yes, 1SMA4743 R3G is RoHS compliant, making it suitable for use in environmentally sensitive applications.
  8. What package type does 1SMA4743 R3G come in?

    • 1SMA4743 R3G is available in a DO-214AC (SMA) package.
  9. What are the key features of 1SMA4743 R3G?

    • Key features of 1SMA4743 R3G include low clamping voltage, fast response time, and high surge capability.
  10. Can 1SMA4743 R3G be used for overvoltage protection in power supply circuits?

    • Yes, 1SMA4743 R3G can be used for overvoltage protection in power supply circuits to safeguard sensitive components from voltage spikes and transients.