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SMCJ18A-QH
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SMCJ18A-QH

Product Overview

Category

The SMCJ18A-QH belongs to the category of transient voltage suppressor diodes.

Use

It is used for protecting sensitive electronic devices from voltage transients induced by lightning, inductive load switching, and electrostatic discharge.

Characteristics

  • Fast response time
  • Low clamping voltage
  • High surge current capability

Package

The SMCJ18A-QH is available in a surface mount package.

Essence

This diode serves as a crucial component in safeguarding electronic circuits from voltage spikes and surges.

Packaging/Quantity

The SMCJ18A-QH is typically packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

  • Peak Pulse Power: 1500W
  • Breakdown Voltage: 18V
  • Maximum Clamping Voltage: 29.2V
  • Operating Temperature Range: -55°C to 150°C

Detailed Pin Configuration

The SMCJ18A-QH has a standard SMC (DO-214AB) package with two pins. Pin 1 is the anode, and pin 2 is the cathode.

Functional Features

  • Rapid response to transient voltage events
  • Low clamping voltage to protect downstream components
  • Robust surge current handling capability

Advantages and Disadvantages

Advantages

  • Effective protection against voltage transients
  • Fast reaction time
  • Compact size for easy integration into circuit designs

Disadvantages

  • Limited to specific voltage ranges
  • May require additional circuitry for comprehensive surge protection

Working Principles

The SMCJ18A-QH operates by diverting excessive transient currents away from sensitive components, thereby limiting the voltage across the protected circuit.

Detailed Application Field Plans

The SMCJ18A-QH is commonly employed in: - Telecommunication equipment - Industrial control systems - Power supplies - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to the SMCJ18A-QH include: - P6SMB18A - 1.5SMC18A - SMBJ18A

In conclusion, the SMCJ18A-QH transient voltage suppressor diode offers efficient protection against voltage transients, making it an essential component in various electronic applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMCJ18A-QH v technických řešeních

  1. What is the maximum peak pulse current for SMCJ18A-QH?

    • The maximum peak pulse current for SMCJ18A-QH is 300A.

  2. What is the breakdown voltage of SMCJ18A-QH?

    • The breakdown voltage of SMCJ18A-QH is 20V.

  3. What is the typical clamping voltage of SMCJ18A-QH at 10A?

    • The typical clamping voltage of SMCJ18A-QH at 10A is 29.2V.

  4. What is the power dissipation of SMCJ18A-QH?

    • The power dissipation of SMCJ18A-QH is 1500W.

  5. What is the operating temperature range for SMCJ18A-QH?

    • The operating temperature range for SMCJ18A-QH is -55°C to +150°C.

  6. Is SMCJ18A-QH RoHS compliant?

    • Yes, SMCJ18A-QH is RoHS compliant.

  7. What is the package type of SMCJ18A-QH?

    • SMCJ18A-QH comes in a DO-214AB (SMC) package.

  8. What are the typical applications for SMCJ18A-QH?

    • SMCJ18A-QH is commonly used in surge protection for telecommunications equipment, industrial and consumer electronics, and automotive systems.

  9. Does SMCJ18A-QH have a low leakage current?

    • Yes, SMCJ18A-QH has a low leakage current.

  10. What are the recommended board layout and assembly guidelines for SMCJ18A-QH?

    • The recommended board layout and assembly guidelines can be found in the datasheet provided by the manufacturer.