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SMAJ120
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SMAJ120 Product Overview

Product Category

The SMAJ120 belongs to the category of transient voltage suppressor diodes, commonly used for surge protection in electronic circuits.

Basic Information Overview

  • Use: The SMAJ120 is utilized to protect sensitive electronic components from voltage spikes and transients.
  • Characteristics: It offers fast response time, low clamping voltage, and high surge capability.
  • Package: The SMAJ120 is typically available in a DO-214AC (SMA) package.
  • Essence: Its essence lies in providing robust protection against transient overvoltage conditions.
  • Packaging/Quantity: It is commonly packaged in reels or trays containing a specific quantity per package.

Specifications

  • Voltage Rating: 120V
  • Peak Pulse Power: 400W
  • Operating Temperature Range: -55°C to +150°C
  • Storage Temperature Range: -55°C to +175°C

Detailed Pin Configuration

The SMAJ120 typically has two pins, with the cathode marked by a line on the body of the diode.

Functional Features

  • Transient Suppression: Effectively clamps transient overvoltages to protect downstream components.
  • Fast Response Time: Rapid reaction to voltage spikes ensures minimal impact on the protected circuitry.
  • Low Clamping Voltage: Limits the voltage across the protected circuit during transient events.

Advantages and Disadvantages

Advantages

  • Effective surge protection
  • Fast response time
  • Compact form factor

Disadvantages

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

Working Principles

The SMAJ120 operates based on the principle of avalanche breakdown, where it rapidly conducts excess voltage away from the protected circuit, limiting the voltage across it.

Detailed Application Field Plans

The SMAJ120 finds extensive use in various applications, including: - Consumer electronics - Telecommunications equipment - Industrial control systems - Automotive electronics - Power supplies

Detailed and Complete Alternative Models

Some alternative models to SMAJ120 include: - P6KE120CA - 1.5SMC120A - SMBJ120A

In conclusion, the SMAJ120 transient voltage suppressor diode serves as a crucial component in safeguarding electronic circuits from voltage transients, offering fast response and effective surge protection across diverse applications.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SMAJ120 en soluciones técnicas

  1. What is SMAJ120?

    • SMAJ120 is a surface mount transient voltage suppressor diode that is commonly used to protect electronic circuits from overvoltage transients.

  2. What is the maximum peak pulse power of SMAJ120?

    • The maximum peak pulse power of SMAJ120 is 400 watts.

  3. What is the breakdown voltage of SMAJ120?

    • The breakdown voltage of SMAJ120 is 120 volts.

  4. What are the typical applications of SMAJ120?

    • SMAJ120 is typically used in various electronic devices and systems such as power supplies, telecommunications equipment, industrial controls, and automotive electronics to protect against voltage surges and spikes.

  5. What is the operating temperature range of SMAJ120?

    • The operating temperature range of SMAJ120 is -55°C to +150°C.

  6. What is the response time of SMAJ120?

    • The response time of SMAJ120 is very fast, typically responding within nanoseconds to clamp the voltage spike.

  7. How does SMAJ120 provide protection against voltage transients?

    • SMAJ120 diverts excessive current away from sensitive components by clamping the voltage to a safe level, thus protecting the circuit from damage.

  8. Is SMAJ120 RoHS compliant?

    • Yes, SMAJ120 is RoHS compliant, meaning it meets the Restriction of Hazardous Substances directive.

  9. Can SMAJ120 be used for both AC and DC applications?

    • Yes, SMAJ120 can be used for both AC and DC applications to protect against transient overvoltages.

  10. What are the key features of SMAJ120?

    • The key features of SMAJ120 include low clamping voltage, fast response time, high surge capability, and compatibility with automated placement equipment.