Taiwan Semiconductor Corporation
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1SMA4737 R3G
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1SMA4737 R3G

Product Overview

Category

The 1SMA4737 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: 8.2V
  • Power dissipation: 1.5W
  • Package type: DO-214AC (SMA)
  • Operating temperature range: -65°C to +175°C
  • Storage temperature range: -65°C to +175°C

Packaging/Quantity

The 1SMA4737 R3G is typically available in tape and reel packaging with a quantity of 3000 units per reel.

Specifications

  • Zener voltage: 8.2V
  • Power dissipation: 1.5W
  • Forward voltage: 1.2V
  • Reverse current: 5µA
  • Maximum junction temperature: 175°C

Detailed Pin Configuration

The 1SMA4737 R3G has two pins, with the anode connected to the positive terminal and the cathode connected to the negative terminal.

Functional Features

  • Voltage regulation: The Zener diode maintains a constant voltage across its terminals, providing stability in electronic circuits.
  • Transient suppression: It protects sensitive components from voltage spikes and transients.

Advantages and Disadvantages

Advantages

  • Precise voltage regulation
  • Fast response to transient events
  • Compact package size

Disadvantages

  • Limited power dissipation capability
  • Sensitivity to temperature variations

Working Principles

The 1SMA4737 R3G operates based on the principle of the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse-biased.

Detailed Application Field Plans

The 1SMA4737 R3G is widely used in: - Voltage regulators - Surge protectors - Overvoltage clamping circuits - Power supplies - Electronic equipment protection

Detailed and Complete Alternative Models

Some alternative models to the 1SMA4737 R3G include: - 1N4728A - BZX85C8V2 - MMSZ5232B

In conclusion, the 1SMA4737 R3G Zener diode offers precise voltage regulation and transient suppression capabilities, making it suitable for various electronic applications. Its compact package and functional features make it a popular choice despite its limitations in power dissipation and temperature sensitivity. Additionally, there are alternative models available for different design requirements.

Énumérez 10 questions et réponses courantes liées à l'application de 1SMA4737 R3G dans les solutions techniques

Sure, here are 10 common questions and answers related to the application of 1SMA4737 R3G in technical solutions:

  1. What is the voltage rating of 1SMA4737 R3G?

    • The voltage rating of 1SMA4737 R3G is 16V.

  2. What is the maximum peak pulse power of 1SMA4737 R3G?

    • The maximum peak pulse power of 1SMA4737 R3G is 400W.

  3. What is the typical clamping voltage of 1SMA4737 R3G?

    • The typical clamping voltage of 1SMA4737 R3G is 25.6V at 1A.

  4. What is the operating temperature range for 1SMA4737 R3G?

    • The operating temperature range for 1SMA4737 R3G is -55°C to +150°C.

  5. What are the typical applications for 1SMA4737 R3G?

    • Typical applications for 1SMA4737 R3G include transient voltage suppression in electronic equipment, automotive systems, and industrial controls.

  6. Is 1SMA4737 R3G RoHS compliant?

    • Yes, 1SMA4737 R3G is RoHS compliant.

  7. What is the package type of 1SMA4737 R3G?

    • 1SMA4737 R3G comes in a DO-214AC (SMA) package.

  8. What is the reverse stand-off voltage of 1SMA4737 R3G?

    • The reverse stand-off voltage of 1SMA4737 R3G is 15.3V.

  9. Does 1SMA4737 R3G have a low leakage current?

    • Yes, 1SMA4737 R3G has a low leakage current of less than 1µA.

  10. Can 1SMA4737 R3G be used for ESD protection?

    • Yes, 1SMA4737 R3G can be used for ESD (electrostatic discharge) protection in various electronic circuits.

I hope these questions and answers are helpful for your technical solutions! If you need further information, feel free to ask.