Taiwan Semiconductor Corporation
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1SMA5948HR3G
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1SMA5948HR3G

Product Overview

Category

The 1SMA5948HR3G 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: 18V
  • Power Dissipation: 5W
  • Package: DO-214AC (SMA)
  • RoHS Compliant: Yes

Packaging/Quantity

The 1SMA5948HR3G is typically available in tape and reel packaging with a quantity of 3000 units per reel.

Specifications

  • Zener Voltage: 16.2V to 19.8V
  • Maximum Reverse Leakage Current: 5µA
  • Maximum Temperature Coefficient: 0.05%/°C

Detailed Pin Configuration

The 1SMA5948HR3G has two pins, with the anode connected to pin 1 and the cathode connected to pin 2.

Functional Features

  • Precise voltage regulation
  • Fast response time to transient events
  • High power dissipation capability

Advantages

  • Small form factor
  • RoHS compliant
  • Wide operating temperature range

Disadvantages

  • Limited voltage options
  • Sensitive to overvoltage conditions

Working Principles

The 1SMA5948HR3G operates based on the principle of Zener breakdown, where it maintains a constant voltage across its terminals when operated within its specified parameters.

Detailed Application Field Plans

This diode is widely used in: - Voltage regulation in power supplies - Transient suppression in communication equipment - Overvoltage protection in automotive electronics

Detailed and Complete Alternative Models

Some alternative models to the 1SMA5948HR3G include: - 1N4744A - BZX84C18 - P6SMB18CA

In conclusion, the 1SMA5948HR3G is a surface mount silicon Zener diode with specific characteristics and applications. Its precise voltage regulation and transient suppression capabilities make it suitable for various electronic circuits, despite its limitations in voltage options and sensitivity to overvoltage conditions.

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Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät 1SMA5948HR3G :n soveltamiseen teknisissä ratkaisuissa

  1. What is 1SMA5948HR3G and what is its application in technical solutions?

    • 1SMA5948HR3G is a high-reliability, low-voltage, 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 1SMA5948HR3G?

    • The maximum peak pulse power of 1SMA5948HR3G is 400 watts.

  3. What is the breakdown voltage of 1SMA5948HR3G?

    • The breakdown voltage of 1SMA5948HR3G is 48 volts.

  4. How does 1SMA5948HR3G protect electronic circuits?

    • 1SMA5948HR3G clamps the voltage across the protected circuit when subjected to transient voltage spikes, diverting excess current away from sensitive components.

  5. What are the typical applications of 1SMA5948HR3G in technical solutions?

    • Typical applications include protection of telecommunications equipment, industrial control systems, automotive electronics, and power supplies.

  6. What is the operating temperature range of 1SMA5948HR3G?

    • The operating temperature range of 1SMA5948HR3G is -55°C to +150°C.

  7. Does 1SMA5948HR3G comply with industry standards for reliability?

    • Yes, 1SMA5948HR3G complies with industry standards for reliability, making it suitable for use in critical applications.

  8. Can 1SMA5948HR3G be used in high-speed data line protection?

    • Yes, 1SMA5948HR3G can be used in high-speed data line protection due to its fast response time and low capacitance.

  9. What package type is 1SMA5948HR3G available in?

    • 1SMA5948HR3G is available in a DO-214AC (SMA) package.

  10. Is 1SMA5948HR3G RoHS compliant?

    • Yes, 1SMA5948HR3G is RoHS compliant, meeting environmental regulations for lead-free manufacturing.