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SA78CA
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SA78CA Product Overview

Introduction

SA78CA is a semiconductor product belonging to the category of transient voltage suppressor (TVS) diodes. These diodes are widely used in electronic circuits to protect sensitive components from voltage spikes and transients. The SA78CA offers unique characteristics, packaging, and functional features that make it suitable for various applications.

Basic Information Overview

  • Category: Transient Voltage Suppressor (TVS) Diode
  • Use: Protection against voltage spikes and transients in electronic circuits
  • Characteristics: Fast response time, low clamping voltage, high surge current capability
  • Package: DO-15 or SMA package
  • Essence: Safeguarding sensitive electronic components
  • Packaging/Quantity: Available in reels or bulk quantities

Specifications

The SA78CA TVS diode has the following specifications: - Peak Pulse Power: 500 W - Breakdown Voltage Range: 6.4 V to 200 V - Operating Temperature Range: -55°C to +150°C - Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SA78CA TVS diode typically has two pins, with the pin configuration as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

  • Fast Response Time: Rapid reaction to voltage spikes
  • Low Clamping Voltage: Limits the voltage across the protected circuit
  • High Surge Current Capability: Ability to handle large transient currents

Advantages and Disadvantages

Advantages

  • Effective protection against voltage surges
  • Compact size for easy integration into circuits
  • Wide range of breakdown voltages available

Disadvantages

  • Limited power dissipation capability compared to larger TVS devices
  • May require additional circuitry for comprehensive surge protection

Working Principles

When a voltage spike occurs, the SA78CA TVS diode conducts and clamps the voltage to a safe level, diverting the excess energy away from the protected circuit. This rapid response helps prevent damage to sensitive components.

Detailed Application Field Plans

The SA78CA TVS diode finds application in various fields, including: - Telecommunications: Protecting communication equipment from lightning-induced surges - Automotive Electronics: Safeguarding vehicle electronics from voltage transients - Industrial Control Systems: Ensuring reliability in industrial automation environments - Consumer Electronics: Protecting sensitive devices like smartphones and tablets

Detailed and Complete Alternative Models

Several alternative models to SA78CA include: - SA5.0CA: 5.0 V breakdown voltage TVS diode - SA15CA: 15 V breakdown voltage TVS diode - SA24CA: 24 V breakdown voltage TVS diode - SA36CA: 36 V breakdown voltage TVS diode

In conclusion, the SA78CA TVS diode offers effective protection against voltage spikes and transients, making it an essential component in various electronic systems.

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  1. What is SA78CA?

    • SA78CA is a common type of transient voltage suppressor diode used to protect electronic circuits from voltage spikes and transients.

  2. How does SA78CA work?

    • SA78CA works by diverting excess voltage away from sensitive components in a circuit, preventing damage from voltage surges.

  3. What are the typical applications of SA78CA?

    • SA78CA is commonly used in power supplies, communication equipment, automotive electronics, and industrial control systems to protect against voltage transients.

  4. What is the maximum clamping voltage of SA78CA?

    • The maximum clamping voltage of SA78CA is typically around 124 volts.

  5. What is the peak pulse current rating of SA78CA?

    • The peak pulse current rating of SA78CA is usually in the range of 500A to 1000A.

  6. Can SA78CA be used for ESD protection?

    • Yes, SA78CA can be used for electrostatic discharge (ESD) protection in electronic devices and integrated circuits.

  7. What is the operating temperature range of SA78CA?

    • The operating temperature range of SA78CA is typically between -55°C to +150°C.

  8. Is SA78CA RoHS compliant?

    • Yes, many SA78CA diodes are RoHS compliant, meaning they adhere to restrictions on hazardous substances.

  9. What is the packaging type available for SA78CA?

    • SA78CA is available in various packaging types, including DO-15, SMA, SMB, and SMC packages.

  10. Are there any recommended layout considerations when using SA78CA?

    • It is recommended to minimize the length of the traces between the SA78CA diode and the protected circuitry and to provide a low impedance path to ground for optimal performance.