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SMDJ78A-HR
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SMDJ78A-HR

Product Overview

The SMDJ78A-HR belongs to the category of TVS (Transient Voltage Suppressor) diodes. These diodes are used to protect sensitive electronic components from voltage spikes and transient surges. The SMDJ78A-HR is characterized by its high reliability, fast response time, and low clamping voltage. It is typically packaged in a surface-mount package and is available in various quantities per package.

Basic Information

  • Category: TVS Diode
  • Use: Protection against voltage spikes and transient surges
  • Characteristics: High reliability, fast response time, low clamping voltage
  • Package: Surface-mount
  • Essence: Protecting sensitive electronic components
  • Packaging/Quantity: Available in various quantities per package

Specifications

  • Voltage Rating: 78V
  • Peak Pulse Power: 3000W
  • Breakdown Voltage: 86.7V
  • Operating Temperature Range: -55°C to 150°C
  • Package Type: DO-214AB (SMC)

Detailed Pin Configuration

The SMDJ78A-HR TVS diode has a standard DO-214AB (SMC) package with two pins. Pin 1 is the cathode, and pin 2 is the anode.

Functional Features

  • Fast response time
  • Low clamping voltage
  • High surge current capability
  • RoHS compliant

Advantages and Disadvantages

Advantages

  • Effective protection against voltage spikes
  • Fast response time
  • High surge current capability

Disadvantages

  • Limited to specific voltage ratings
  • May require additional circuitry for comprehensive protection

Working Principles

When a voltage spike or transient surge occurs, the SMDJ78A-HR TVS diode rapidly conducts, diverting the excess energy away from the protected components. This action helps to limit the voltage across the components, thereby safeguarding them from potential damage.

Detailed Application Field Plans

The SMDJ78A-HR is commonly used in various applications, including: - Power supplies - Communication systems - Industrial equipment - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the SMDJ78A-HR TVS diode include: - P6SMB78A - 1.5SMC78A - SMBJ78A - P4SMA78A

In conclusion, the SMDJ78A-HR TVS diode offers reliable protection against voltage spikes and transient surges, making it an essential component in numerous electronic applications.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SMDJ78A-HR en soluciones técnicas

Sure, here are 10 common questions and answers related to the application of SMDJ78A-HR in technical solutions:

  1. Q: What is the maximum peak pulse power dissipation of SMDJ78A-HR? A: The maximum peak pulse power dissipation of SMDJ78A-HR is 3000 watts.

  2. Q: What is the breakdown voltage of SMDJ78A-HR? A: The breakdown voltage of SMDJ78A-HR is 78 volts.

  3. Q: Can SMDJ78A-HR be used for surge protection in power supply units? A: Yes, SMDJ78A-HR can be used for surge protection in power supply units due to its high power dissipation capability.

  4. Q: Is SMDJ78A-HR suitable for overvoltage protection in automotive electronics? A: Yes, SMDJ78A-HR is suitable for overvoltage protection in automotive electronics applications.

  5. Q: What is the response time of SMDJ78A-HR during transient voltage surges? A: The response time of SMDJ78A-HR is very fast, providing rapid protection against transient voltage surges.

  6. Q: Can SMDJ78A-HR be used in telecommunications equipment for lightning protection? A: Yes, SMDJ78A-HR is commonly used in telecommunications equipment for lightning protection due to its high power dissipation and fast response time.

  7. Q: Does SMDJ78A-HR require heatsinking in high-power applications? A: Yes, in high-power applications, it is recommended to provide adequate heatsinking for SMDJ78A-HR to ensure optimal performance and reliability.

  8. Q: What is the operating temperature range of SMDJ78A-HR? A: The operating temperature range of SMDJ78A-HR is -55°C to +150°C, making it suitable for a wide range of environmental conditions.

  9. Q: Can SMDJ78A-HR be used for ESD protection in electronic circuits? A: Yes, SMDJ78A-HR can be used for electrostatic discharge (ESD) protection in electronic circuits, safeguarding sensitive components from damage.

  10. Q: Are there any specific PCB layout considerations for integrating SMDJ78A-HR into a design? A: It is important to minimize the length and impedance of the traces connecting SMDJ78A-HR to the circuit to reduce inductance and optimize its performance.