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SMAJ18
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SMAJ18 Product Overview

Introduction

SMAJ18 is a diode belonging to the category of transient voltage suppressor (TVS) diodes. These diodes are widely used for protecting sensitive electronic components from voltage spikes and transients. The SMAJ18 diode is specifically designed to provide robust protection against transient overvoltage conditions in various electronic circuits.

Basic Information Overview

  • 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: Safeguarding electronic components from voltage surges
  • Packaging/Quantity: Typically available in reels or bulk packaging

Specifications

  • Part Number: SMAJ18
  • Peak Pulse Power: 400W
  • Breakdown Voltage: 18V
  • Operating Temperature Range: -55°C to +150°C
  • Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMAJ18 diode has a standard SMA (DO-214AC) package with two pins. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

  • Fast response to transient overvoltage events
  • Low clamping voltage to protect downstream components
  • High surge capability for reliable protection

Advantages and Disadvantages

Advantages

  • Effective protection against voltage spikes
  • Fast response time
  • Compact package size

Disadvantages

  • Clamping voltage may still be too high for some sensitive components
  • Limited power dissipation capability

Working Principles

When a transient voltage spike occurs, the SMAJ18 diode rapidly conducts, diverting the excess energy away from the protected circuit. This action helps to limit the voltage across the circuit, preventing damage to sensitive components.

Detailed Application Field Plans

The SMAJ18 diode finds extensive use in various applications, including: - Power supply units - Communication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

  • Alternative Model 1: SMAJ14A - Breakdown Voltage: 14V, Peak Pulse Power: 400W
  • Alternative Model 2: SMAJ24CA - Breakdown Voltage: 24V, Peak Pulse Power: 400W
  • Alternative Model 3: SMAJ36A - Breakdown Voltage: 36V, Peak Pulse Power: 400W

In summary, the SMAJ18 diode offers effective protection against transient overvoltage conditions in a wide range of electronic applications. Its fast response time and high surge capability make it a valuable component for safeguarding sensitive circuits.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMAJ18 v technických řešeních

  1. What is SMAJ18?

    • SMAJ18 is a type of 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 SMAJ18?

    • The maximum peak pulse power of SMAJ18 is 400 watts for an 8/20µs waveform.

  3. What is the breakdown voltage of SMAJ18?

    • The breakdown voltage of SMAJ18 is 18 volts.

  4. How does SMAJ18 protect electronic circuits?

    • SMAJ18 clamps the voltage across the circuit when it exceeds its breakdown voltage, diverting excess current away from sensitive components and protecting them from damage.

  5. What are the typical applications of SMAJ18?

    • SMAJ18 is commonly used in various electronic devices and systems such as power supplies, telecommunications equipment, automotive electronics, and industrial controls.

  6. What is the operating temperature range of SMAJ18?

    • The operating temperature range of SMAJ18 is typically -55°C to +150°C.

  7. What is the response time of SMAJ18?

    • The response time of SMAJ18 is very fast, typically responding within nanoseconds to clamp the overvoltage.

  8. Can SMAJ18 be used for surge protection in data lines?

    • Yes, SMAJ18 can be used for surge protection in data lines and communication interfaces to safeguard against voltage spikes.

  9. Is SMAJ18 RoHS compliant?

    • Yes, SMAJ18 is RoHS compliant, meaning it meets the Restriction of Hazardous Substances directive.

  10. What are the package options available for SMAJ18?

    • SMAJ18 is available in various package options including DO-214AC (SMA) and DO-214AB (SMC) packages.

These questions and answers provide a comprehensive overview of the technical aspects and applications of SMAJ18 in electronic solutions.