Taiwan Semiconductor Corporation
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1SMA4758HR3G
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1SMA4758HR3G

Product Overview

Category

The 1SMA4758HR3G 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 regulation
  • Transient suppression
  • Surface mount design
  • High reliability

Package

The 1SMA4758HR3G is typically available in a SOD-123 package.

Essence

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

Packaging/Quantity

The 1SMA4758HR3G is usually packaged in reels with quantities varying based on manufacturer specifications.

Specifications

  • Zener Voltage: 11V
  • Power Dissipation: 1.5W
  • Operating Temperature Range: -65°C to +150°C
  • Forward Voltage: 1.2V
  • Reverse Leakage Current: 5µA

Detailed Pin Configuration

The 1SMA4758HR3G typically has two pins, with the anode connected to the positive side and the cathode connected to the negative side of the circuit.

Functional Features

  • Voltage regulation under specified conditions
  • Transient suppression to protect sensitive components
  • Compact surface mount design for space efficiency

Advantages

  • Reliable voltage regulation
  • Effective transient suppression
  • Small form factor

Disadvantages

  • Limited power dissipation capability
  • Sensitive to operating temperature extremes

Working Principles

The 1SMA4758HR3G operates based on the principle of the Zener effect, where it maintains a constant voltage across its terminals when reverse-biased within its specified voltage range.

Detailed Application Field Plans

The 1SMA4758HR3G is widely used in: - Power supply units - Automotive electronics - Consumer electronics - Industrial equipment

Detailed and Complete Alternative Models

Some alternative models to the 1SMA4758HR3G include: - 1N4749A - BZX85C11 - MMSZ5240B

In conclusion, the 1SMA4758HR3G is a vital component in electronic circuits, providing voltage regulation and transient suppression. Its compact design and reliable performance make it suitable for various applications in different industries.

Word Count: 366

قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق 1SMA4758HR3G في الحلول التقنية

  1. What is 1SMA4758HR3G?

    • 1SMA4758HR3G is a high-reliability, surface-mount, silicon-avalanche diode designed for transient voltage suppression in various electronic applications.

  2. What are the key features of 1SMA4758HR3G?

    • The key features include a breakdown voltage of 58V, low clamping voltage, fast response time, and high surge capability.

  3. In what technical solutions can 1SMA4758HR3G be used?

    • It can be used in power supplies, automotive electronics, industrial controls, telecommunication equipment, and other systems requiring transient voltage protection.

  4. How does 1SMA4758HR3G provide transient voltage suppression?

    • It utilizes its silicon-avalanche diode structure to rapidly clamp transient overvoltage events, diverting excess current away from sensitive components.

  5. What is the operating temperature range of 1SMA4758HR3G?

    • The device is designed to operate within a temperature range of -55°C to 150°C, making it suitable for a wide range of environments.

  6. What is the recommended mounting method for 1SMA4758HR3G?

    • The device is typically mounted using surface-mount technology (SMT) on printed circuit boards to ensure reliable electrical connections.

  7. Does 1SMA4758HR3G comply with any industry standards?

    • Yes, it complies with the RoHS directive and is also halogen-free, meeting environmental and safety requirements.

  8. What are the typical applications where 1SMA4758HR3G is beneficial?

    • It is beneficial in protecting integrated circuits, transistors, and other semiconductor devices from voltage transients induced by lightning, ESD, or inductive load switching.

  9. Can 1SMA4758HR3G be used in high-frequency applications?

    • Yes, it has a fast response time and low capacitance, making it suitable for high-frequency applications such as RF communication systems.

  10. Are there any precautions to consider when using 1SMA4758HR3G in technical solutions?

    • It's important to ensure proper PCB layout, minimize lead lengths, and adhere to recommended operating conditions to maximize the effectiveness of the device.