Taiwan Semiconductor Corporation
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1SMA4739HR3G
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1SMA4739HR3G

Product Overview

Category

The 1SMA4739HR3G belongs to the category of semiconductor devices, specifically a Zener diode.

Use

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

Characteristics

  • Voltage: 11V
  • Power Dissipation: 1.5W
  • Package: SMA
  • Reverse Standoff Voltage: 9.5V
  • Forward Voltage: 1.2V
  • Operating Temperature Range: -65°C to +150°C

Packaging/Quantity

The 1SMA4739HR3G is typically available in tape and reel packaging with quantities varying based on supplier and customer requirements.

Specifications

  • Zener Voltage: 11V
  • Zener Tolerance: ±5%
  • Maximum Reverse Leakage Current: 5µA
  • Maximum Reverse Voltage: 9.5V
  • Maximum Forward Voltage: 1.2V
  • Maximum Surge Current: 30A

Detailed Pin Configuration

The 1SMA4739HR3G has two pins, anode, and cathode, which are denoted by the standard diode symbol.

Functional Features

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

Advantages

  • Provides stable voltage regulation
  • Protects sensitive electronic components from voltage spikes
  • Compact size for easy integration into circuit designs

Disadvantages

  • Limited power dissipation capability compared to larger diodes
  • Higher cost compared to standard diodes

Working Principles

The 1SMA4739HR3G operates based on the principle of the Zener effect, where it maintains a constant voltage across its terminals when operated in the reverse breakdown region.

Detailed Application Field Plans

The 1SMA4739HR3G finds applications in various fields including: - Power supply units - Voltage regulators - Surge protection circuits - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the 1SMA4739HR3G include: - 1N4749A - BZX85C11 - MMSZ5230B - P6KE11CA

In conclusion, the 1SMA4739HR3G Zener diode offers precise voltage regulation and transient suppression, making it a valuable component in various electronic applications.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням 1SMA4739HR3G у технічних рішеннях

  1. What is 1SMA4739HR3G?

    • 1SMA4739HR3G is a high-reliability, surface mount silicon zener diode designed for voltage regulation in various technical solutions.

  2. What is the voltage rating of 1SMA4739HR3G?

    • The voltage rating of 1SMA4739HR3G is 11V.

  3. What are the typical applications of 1SMA4739HR3G?

    • Typical applications of 1SMA4739HR3G include voltage regulation, surge protection, and transient voltage suppression in electronic circuits.

  4. What is the power dissipation of 1SMA4739HR3G?

    • The power dissipation of 1SMA4739HR3G is 1.5W.

  5. What is the operating temperature range of 1SMA4739HR3G?

    • The operating temperature range of 1SMA4739HR3G is -55°C to +150°C.

  6. What is the package type of 1SMA4739HR3G?

    • 1SMA4739HR3G is available in a DO-214AC (SMA) package.

  7. Is 1SMA4739HR3G RoHS compliant?

    • Yes, 1SMA4739HR3G is RoHS compliant.

  8. What are the key features of 1SMA4739HR3G?

    • The key features of 1SMA4739HR3G include low leakage current, high reliability, and fast response time.

  9. Can 1SMA4739HR3G be used for ESD protection?

    • Yes, 1SMA4739HR3G can be used for electrostatic discharge (ESD) protection in sensitive electronic components.

  10. What are the recommended storage conditions for 1SMA4739HR3G?

    • It is recommended to store 1SMA4739HR3G in a dry environment at a temperature range of -55°C to +150°C.