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SMAJ90A
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SMAJ90A

Product Overview

SMAJ90A is a diode belonging to the category of transient voltage suppressor (TVS) diodes. These diodes are commonly used to protect sensitive electronic components from voltage spikes and transients. The SMAJ90A diode exhibits specific characteristics, comes in a particular package, and has essential features that make it suitable for various applications.

Basic Information

  • Category: Transient Voltage Suppressor (TVS) Diode
  • Use: Protection against voltage spikes and transients
  • Characteristics: Fast response time, low clamping voltage, high surge capability
  • Package: SMA (DO-214AC)
  • Essence: Protecting electronic circuits from voltage surges
  • Packaging/Quantity: Available in tape and reel packaging, quantity varies by manufacturer

Specifications

  • Part Number: SMAJ90A
  • Peak Pulse Power: 400W
  • Breakdown Voltage: 90V
  • Operating Voltage: 77.4V
  • Maximum Clamping Voltage: 136V
  • Peak Pulse Current: 5.8A
  • Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMAJ90A diode has two pins, anode, and cathode, which are denoted by the "+" and "-" symbols, respectively.

Functional Features

  • Transient Voltage Suppression: Provides protection by diverting excessive current away from sensitive components.
  • Fast Response Time: Reacts quickly to voltage spikes, minimizing the risk of damage to connected devices.
  • Low Clamping Voltage: Limits the voltage across the protected circuit to a safe level.

Advantages and Disadvantages

Advantages

  • Effective protection against voltage transients
  • Fast response time
  • Compact size
  • Wide operating temperature range

Disadvantages

  • Limited power dissipation capability
  • May require additional components for comprehensive surge protection

Working Principles

When a voltage spike occurs, the SMAJ90A diode conducts and shunts the excess current to ground, preventing it from reaching the sensitive components. This action effectively limits the voltage across the protected circuit, safeguarding it from potential damage.

Detailed Application Field Plans

The SMAJ90A diode finds application in various fields, including: - Telecommunications equipment - Industrial control systems - Automotive electronics - Consumer electronics - Power supplies

Detailed and Complete Alternative Models

  • Alternative Model 1: SMBJ90A
    • Similar specifications but in a different package (SMB)
  • Alternative Model 2: P6SMB90A
    • Higher peak pulse power rating and different package (SMB)

In conclusion, the SMAJ90A diode serves as a crucial component in protecting electronic circuits from voltage transients and spikes. Its fast response time, low clamping voltage, and compact size make it suitable for a wide range of applications.

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10個與SMAJ90A在技術方案中應用相關的常見問題與解答

Sure, here are 10 common questions and answers related to the application of SMAJ90A in technical solutions:

  1. What is SMAJ90A?

    • SMAJ90A is a type of surface mount transient voltage suppressor diode designed to protect sensitive electronic components from voltage spikes and transients.

  2. What is the maximum peak pulse power dissipation of SMAJ90A?

    • The maximum peak pulse power dissipation of SMAJ90A is 400 watts.

  3. What is the breakdown voltage of SMAJ90A?

    • The breakdown voltage of SMAJ90A is 90 volts.

  4. What are the typical applications of SMAJ90A?

    • SMAJ90A is commonly used in various electronic devices and circuits to protect against voltage surges induced by lightning, ESD, or other transient voltage events.

  5. What is the operating temperature range of SMAJ90A?

    • The operating temperature range of SMAJ90A is typically -55°C to +150°C.

  6. How does SMAJ90A provide protection against voltage spikes?

    • SMAJ90A clamps the voltage at a safe level by diverting excess current away from sensitive components when a transient event occurs.

  7. Can SMAJ90A be used for overvoltage protection in power supply circuits?

    • Yes, SMAJ90A can be used to protect power supply circuits from overvoltage conditions.

  8. Is SMAJ90A suitable for high-speed data lines protection?

    • Yes, SMAJ90A is suitable for protecting high-speed data lines such as USB, Ethernet, and HDMI interfaces.

  9. What is the response time of SMAJ90A during a transient event?

    • The response time of SMAJ90A is very fast, typically in the nanosecond range.

  10. Are there any specific layout considerations when using SMAJ90A in a PCB design?

    • It is recommended to keep the traces between the protected component and SMAJ90A as short as possible to minimize inductance and maximize protection effectiveness.

I hope these questions and answers are helpful! Let me know if you need further assistance.