Vishay Semiconductor Diodes Division
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SMAJ18-E3/5A
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SMAJ18-E3/5A

Product Overview

Category

The SMAJ18-E3/5A belongs to the category of electronic components, specifically within the realm of semiconductor devices.

Use

This product is primarily used for transient voltage suppression in electronic circuits to protect sensitive components from voltage spikes and surges.

Characteristics

  • Package: SMA (DO-214AC)
  • Essence: Transient Voltage Suppressor (TVS) Diode
  • Packaging/Quantity: Available in tape and reel packaging with varying quantities depending on supplier.

Specifications

The SMAJ18-E3/5A has the following specifications: - Peak Pulse Power: 400W - Breakdown Voltage: 18V - Clamping Voltage: 29.2V - Operating Temperature Range: -55°C to +150°C - RoHS Compliant: Yes

Detailed Pin Configuration

The SMAJ18-E3/5A follows the standard pin configuration for SMA (DO-214AC) package diodes, with two leads for connection to the circuit.

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient overvoltage to protect downstream components.
  • Fast Response Time: Rapid reaction to voltage spikes ensures minimal impact on the protected circuitry.
  • Low Leakage Current: Ensures minimal power loss during normal operation.

Advantages and Disadvantages

Advantages

  • Effective protection against voltage transients
  • Compact form factor
  • RoHS compliant

Disadvantages

  • Limited maximum clamping voltage
  • Requires careful consideration of reverse standoff voltage

Working Principles

The SMAJ18-E3/5A operates based on the principle of avalanche breakdown, where it rapidly conducts excess voltage away from the protected circuit, limiting the voltage across the load.

Detailed Application Field Plans

The SMAJ18-E3/5A is commonly used in various electronic applications, including: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the SMAJ18-E3/5A include: - P6KE18CA - 1.5KE18A - SMBJ18A

In conclusion, the SMAJ18-E3/5A is a vital component in protecting electronic circuits from transient voltage events, offering effective suppression and fast response times. Its compact form factor and RoHS compliance make it a popular choice in various electronic applications.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SMAJ18-E3/5A en soluciones técnicas

  1. What is the maximum peak pulse power of SMAJ18-E3/5A?

    • The maximum peak pulse power of SMAJ18-E3/5A is 400 watts for a 10/1000μs waveform.

  2. What is the breakdown voltage of SMAJ18-E3/5A?

    • The breakdown voltage of SMAJ18-E3/5A is typically 20 volts.

  3. What are the typical applications of SMAJ18-E3/5A?

    • SMAJ18-E3/5A is commonly used in surge protection for sensitive electronics, such as telecommunications equipment, industrial control systems, and automotive electronics.

  4. What is the clamping voltage of SMAJ18-E3/5A?

    • The clamping voltage of SMAJ18-E3/5A is 29.2 volts at 10A.

  5. Is SMAJ18-E3/5A RoHS compliant?

    • Yes, SMAJ18-E3/5A is RoHS compliant, making it suitable for use in environmentally conscious designs.

  6. What is the operating temperature range of SMAJ18-E3/5A?

    • The operating temperature range of SMAJ18-E3/5A is -55°C to +150°C, allowing for reliable performance in various environments.

  7. Does SMAJ18-E3/5A have a low leakage current?

    • Yes, SMAJ18-E3/5A features a low leakage current, which is beneficial for minimizing power loss and ensuring efficient operation.

  8. Can SMAJ18-E3/5A be used for ESD protection?

    • Yes, SMAJ18-E3/5A can be utilized for electrostatic discharge (ESD) protection in electronic circuits and components.

  9. What package type does SMAJ18-E3/5A come in?

    • SMAJ18-E3/5A is available in a DO-214AC (SMA) package, which is a popular surface mount package for easy integration onto circuit boards.

  10. Are there any recommended layout considerations for implementing SMAJ18-E3/5A in a design?

    • It is advisable to follow the manufacturer's recommended layout guidelines to optimize the performance of SMAJ18-E3/5A in a specific technical solution, including proper placement and routing of the device to minimize parasitic effects.