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1SMA5949 R3G
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1SMA5949 R3G

Product Overview

Category

The 1SMA5949 R3G 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: 12V
  • Power Dissipation: 1.5W
  • Package: SMA
  • Operating Temperature: -65°C to +150°C
  • Storage Temperature: -65°C to +175°C

Packaging/Quantity

The 1SMA5949 R3G is typically available in tape and reel packaging with a quantity of 3000 units per reel.

Specifications

  • Zener Voltage: 11.4V to 12.6V
  • Test Current: 20mA
  • Maximum Reverse Leakage Current: 5µA
  • Maximum Dynamic Impedance: 10Ω

Detailed Pin Configuration

The 1SMA5949 R3G has two pins, with the anode connected to the positive terminal and the cathode connected to the negative terminal.

Functional Features

  • Precise voltage regulation
  • Fast response time
  • High reliability

Advantages

  • Small form factor
  • Wide operating temperature range
  • Low leakage current

Disadvantages

  • Limited power dissipation capability
  • Sensitive to overvoltage conditions

Working Principles

The 1SMA5949 R3G operates based on the principle of the Zener effect, where it maintains a constant voltage across its terminals when reverse biased.

Detailed Application Field Plans

This diode is widely used in voltage regulation circuits, surge protection, and as a reference voltage source in various electronic devices such as power supplies, automotive electronics, and industrial control systems.

Detailed and Complete Alternative Models

  • 1N4742A
  • BZX55C12
  • MMSZ5248B

In conclusion, the 1SMA5949 R3G is a surface mount silicon Zener diode with precise voltage regulation capabilities, making it suitable for a wide range of electronic applications.

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技術ソリューションにおける 1SMA5949 R3G の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is 1SMA5949 R3G?

    • 1SMA5949 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 1SMA5949 R3G?

    • The maximum peak pulse power of 1SMA5949 R3G is 400 watts for an 8/20 µs waveform.

  3. What is the breakdown voltage of 1SMA5949 R3G?

    • The breakdown voltage of 1SMA5949 R3G is 54 volts.

  4. What are the typical applications of 1SMA5949 R3G?

    • Typical applications of 1SMA5949 R3G include protection of telecommunications equipment, automotive electronics, industrial control systems, and consumer electronics from voltage transients.

  5. What is the operating temperature range of 1SMA5949 R3G?

    • The operating temperature range of 1SMA5949 R3G is -55°C to +150°C.

  6. What is the package type of 1SMA5949 R3G?

    • 1SMA5949 R3G is available in a DO-214AC (SMA) package.

  7. What is the clamping voltage of 1SMA5949 R3G?

    • The clamping voltage of 1SMA5949 R3G is 87.1 volts at 10A.

  8. Is 1SMA5949 R3G RoHS compliant?

    • Yes, 1SMA5949 R3G is RoHS compliant.

  9. What are the key features of 1SMA5949 R3G?

    • Key features of 1SMA5949 R3G include low clamping voltage, fast response time, and high surge capability.

  10. How should 1SMA5949 R3G be mounted on a PCB?

    • 1SMA5949 R3G should be mounted with the cathode end connected to the PCB pad and the anode end connected to the ground plane for effective transient voltage suppression.

Please let me know if you need further information or have any other questions!