Taiwan Semiconductor Corporation
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1SMA5940HR3G
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1SMA5940HR3G

Product Overview

Category

The 1SMA5940HR3G 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

  • Low leakage current
  • High reliability
  • Surface mount package
  • Wide voltage range

Package

The 1SMA5940HR3G is available in a DO-214AC (SMA) package.

Essence

This product serves as a crucial component in protecting electronic circuits from voltage spikes and regulating voltage levels.

Packaging/Quantity

The 1SMA5940HR3G is typically packaged in reels with quantities varying based on manufacturer specifications.

Specifications

  • Zener Voltage: 12V
  • Power Dissipation: 5W
  • Operating Temperature Range: -65°C to +150°C
  • Forward Voltage: 1.5V
  • Reverse Leakage Current: 5µA

Detailed Pin Configuration

The 1SMA5940HR3G has two pins, with the anode connected to the positive terminal and the cathode connected to the negative terminal.

Functional Features

  • Voltage regulation
  • Transient suppression
  • Protection against voltage spikes

Advantages and Disadvantages

Advantages

  • High reliability
  • Wide operating temperature range
  • Low leakage current

Disadvantages

  • Limited power dissipation capability
  • Sensitive to reverse voltage polarity

Working Principles

The 1SMA5940HR3G operates based on the Zener effect, where it maintains a nearly constant voltage across its terminals when operated in the reverse breakdown region.

Detailed Application Field Plans

The 1SMA5940HR3G finds applications in various fields including: - Power supply units - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the 1SMA5940HR3G include: - 1N4742A - BZX85C12 - MMSZ5240B

In conclusion, the 1SMA5940HR3G is a surface mount silicon Zener diode that plays a critical role in voltage regulation and transient suppression in electronic circuits. Its high reliability and wide operating temperature range make it suitable for diverse applications in different industries.

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Maglista ng 10 karaniwang tanong at sagot na nauugnay sa aplikasyon ng 1SMA5940HR3G sa mga teknikal na solusyon

  1. What is the maximum forward current rating of 1SMA5940HR3G?

    • The maximum forward current rating of 1SMA5940HR3G is 3A.

  2. What is the peak pulse power dissipation of 1SMA5940HR3G?

    • The peak pulse power dissipation of 1SMA5940HR3G is 400W for a 10/1000μs waveform.

  3. What is the breakdown voltage of 1SMA5940HR3G?

    • The breakdown voltage of 1SMA5940HR3G is 40V.

  4. What are the typical applications of 1SMA5940HR3G?

    • 1SMA5940HR3G is commonly used in surge protection, voltage clamping, and transient voltage suppression applications.

  5. What is the operating temperature range of 1SMA5940HR3G?

    • The operating temperature range of 1SMA5940HR3G is -55°C to +150°C.

  6. What is the package type of 1SMA5940HR3G?

    • 1SMA5940HR3G is available in a DO-214AC (SMA) package.

  7. What is the reverse stand-off voltage of 1SMA5940HR3G?

    • The reverse stand-off voltage of 1SMA5940HR3G is 36.8V.

  8. Does 1SMA5940HR3G have low leakage current?

    • Yes, 1SMA5940HR3G has low leakage current, making it suitable for precision circuits.

  9. Is 1SMA5940HR3G RoHS compliant?

    • Yes, 1SMA5940HR3G is RoHS compliant.

  10. Can 1SMA5940HR3G be used for ESD protection?

    • Yes, 1SMA5940HR3G can be used for ESD (electrostatic discharge) protection in various electronic devices and systems.