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SMAJ90
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SMAJ90 Product Overview

Introduction

The SMAJ90 is a diode 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 SMAJ90 diode provides essential protection for various electronic devices and systems, offering specific characteristics, packaging, and functional features that make it a valuable component in many 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: SMA (DO-214AC)
  • Essence: Safeguarding sensitive electronic components
  • Packaging/Quantity: Available in tape and reel packaging, with varying quantities based on manufacturer specifications

Specifications

  • Part Number: SMAJ90
  • Peak Pulse Power: 400W
  • Breakdown Voltage: 90V
  • Operating Temperature Range: -55°C to +150°C
  • Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMAJ90 diode has a standard SMA (DO-214AC) package with two pins. Pin 1 is the cathode, and pin 2 is the anode.

Functional Features

  • Transient Voltage Suppression: Provides rapid response to voltage spikes, diverting excess current away from sensitive components.
  • Low Clamping Voltage: Limits the voltage across the protected circuit during transient events, minimizing potential damage.
  • High Surge Current Capability: Can handle significant surge currents without degradation.

Advantages and Disadvantages

Advantages

  • Effective protection against voltage transients
  • Fast response time
  • Compact and easy to integrate into circuit designs

Disadvantages

  • Limited to specific voltage ranges
  • May require additional components for comprehensive circuit protection

Working Principles

The SMAJ90 operates by shunting excess current away from sensitive components when a transient voltage event occurs. It rapidly clamps the voltage to a safe level, preventing damage to the circuitry.

Detailed Application Field Plans

The SMAJ90 diode finds extensive use in various applications, including: - Power Supplies: Protects power supply units from voltage surges - Telecommunication Equipment: Safeguards sensitive communication devices from transient events - Automotive Electronics: Provides protection for automotive electronic systems - Industrial Control Systems: Ensures reliability in industrial automation and control applications

Detailed and Complete Alternative Models

  • Alternative Model 1: SMBJ90A
    • Category: TVS Diode
    • Breakdown Voltage: 90V
    • Package: SMB (DO-214AA)
  • Alternative Model 2: P6KE90CA
    • Category: TVS Diode
    • Breakdown Voltage: 90V
    • Package: DO-15

In conclusion, the SMAJ90 diode serves as a crucial component in protecting electronic circuits from voltage transients, offering fast response times, low clamping voltages, and high surge current capabilities. Its application spans across various industries, ensuring the reliability and longevity of electronic systems.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van SMAJ90 in technische oplossingen

  1. What is SMAJ90?

    • SMAJ90 is a type of surface mount transient voltage suppressor diode with a 90V breakdown voltage.

  2. What are the typical applications of SMAJ90?

    • SMAJ90 is commonly used for overvoltage protection in various electronic circuits, such as power supplies, communication equipment, and automotive electronics.

  3. How does SMAJ90 provide overvoltage protection?

    • SMAJ90 clamps the voltage to a safe level by diverting excess current away from sensitive components when an overvoltage event occurs.

  4. What is the maximum peak pulse current rating for SMAJ90?

    • The maximum peak pulse current rating for SMAJ90 is typically around 30A.

  5. Can SMAJ90 be used for ESD protection?

    • Yes, SMAJ90 can also be used for electrostatic discharge (ESD) protection in electronic circuits to safeguard against static electricity damage.

  6. What is the response time of SMAJ90 during an overvoltage event?

    • SMAJ90 has a very fast response time, typically in the nanosecond range, providing quick protection against voltage spikes.

  7. Is SMAJ90 suitable for high-frequency applications?

    • Yes, SMAJ90 is suitable for high-frequency applications due to its low capacitance and fast response time.

  8. What is the operating temperature range for SMAJ90?

    • The operating temperature range for SMAJ90 is usually between -55°C to 150°C, making it suitable for a wide range of environments.

  9. Are there any specific layout considerations when using SMAJ90 in a circuit?

    • It is important to minimize the length of traces between SMAJ90 and the protected components to reduce inductance and ensure effective protection.

  10. Can SMAJ90 be used in combination with other protective devices?

    • Yes, SMAJ90 can be used in conjunction with other protective devices such as varistors or gas discharge tubes to provide comprehensive overvoltage protection for sensitive electronics.