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1SMA4755TR
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1SMA4755TR

Product Overview

Category

The 1SMA4755TR belongs to the category of surface mount silicon zener diodes.

Use

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

Characteristics

  • Low leakage current
  • High reliability
  • Fast response time

Package

The 1SMA4755TR is typically available in a surface mount DO-214AC (SMA) package.

Essence

This zener diode serves as a crucial component in protecting sensitive electronic devices from voltage spikes and surges.

Packaging/Quantity

It is usually supplied in reels with a standard quantity per reel, typically 3000 or 5000 units.

Specifications

  • Zener Voltage: 27V
  • Power Dissipation: 1.5W
  • Operating Temperature Range: -65°C to +150°C
  • Forward Voltage: 1.5V
  • Reverse Leakage Current: 5µA

Detailed Pin Configuration

The 1SMA4755TR 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
  • Transient voltage suppression
  • Overvoltage protection

Advantages and Disadvantages

Advantages

  • Fast response time
  • High reliability
  • Low leakage current

Disadvantages

  • Limited power dissipation capability
  • Sensitive to temperature variations

Working Principles

When the voltage across the zener diode reaches its breakdown voltage, it starts conducting and regulates the voltage by diverting excess current.

Detailed Application Field Plans

The 1SMA4755TR is widely used in: - Power supplies - Voltage regulators - Surge protectors - Electronic equipment

Detailed and Complete Alternative Models

Some alternative models to the 1SMA4755TR include: - 1N4749A - BZX85C27 - P6SMB27CA

In conclusion, the 1SMA4755TR is a vital component in electronic circuits, providing voltage regulation and transient voltage suppression. Its fast response time and high reliability make it suitable for various applications, although it has limitations in power dissipation and temperature sensitivity. Understanding its specifications, pin configuration, functional features, and alternatives is essential for effective utilization in electronic designs.

Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af 1SMA4755TR i tekniske løsninger

  1. What is 1SMA4755TR used for?

    • 1SMA4755TR is a high-power, surface-mount transient voltage suppressor diode commonly used to protect sensitive electronics from voltage spikes and transients.

  2. What is the maximum voltage rating of 1SMA4755TR?

    • The maximum voltage rating of 1SMA4755TR is 58 volts.

  3. What is the peak pulse power handling capability of 1SMA4755TR?

    • 1SMA4755TR can handle peak pulse power of 500 watts.

  4. What are the typical applications of 1SMA4755TR?

    • Typical applications of 1SMA4755TR include overvoltage protection in telecommunications equipment, industrial control systems, automotive electronics, and power supplies.

  5. What is the operating temperature range of 1SMA4755TR?

    • 1SMA4755TR has an operating temperature range of -55°C to +150°C.

  6. What is the reverse standoff voltage of 1SMA4755TR?

    • The reverse standoff voltage of 1SMA4755TR is 47.8 volts.

  7. Does 1SMA4755TR meet any specific industry standards?

    • Yes, 1SMA4755TR complies with the industry-standard JEDEC registered package outline.

  8. Can 1SMA4755TR be used for ESD protection?

    • Yes, 1SMA4755TR can be used for electrostatic discharge (ESD) protection in various electronic circuits.

  9. What is the response time of 1SMA4755TR to transient events?

    • The response time of 1SMA4755TR to transient events is very fast, typically in the nanosecond range.

  10. Is 1SMA4755TR RoHS compliant?

    • Yes, 1SMA4755TR is compliant with the Restriction of Hazardous Substances (RoHS) directive.