Microsemi Corporation
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SMAJ18E3/TR13
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SMAJ18E3/TR13

Product Overview

  • Belongs to: Electronic Components
  • Category: Diode
  • Use: Voltage regulation and protection
  • Characteristics: Fast response time, low leakage current, high surge capability
  • Package: DO-214AC (SMA), 2-Pin
  • Essence: Protects sensitive electronic components from voltage spikes
  • Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Voltage - Reverse Standoff (Typ): 18V
  • Voltage - Breakdown (Min): 20V
  • Voltage - Clamping (Max) @ Ipp: 29.2V
  • Current - Peak Pulse (10/1000µs): 22.6A
  • Power - Peak Pulse: 400W
  • Type: Zener

Detailed Pin Configuration

The SMAJ18E3/TR13 diode has a simple 2-pin configuration with the anode and cathode terminals.

Functional Features

  • Provides overvoltage protection for sensitive electronic circuits
  • Fast response time ensures minimal damage from voltage spikes
  • Low leakage current minimizes power loss in normal operation

Advantages

  • High surge capability for reliable protection
  • Compact package for easy integration into circuit designs
  • Wide operating temperature range for versatile use

Disadvantages

  • Limited to unidirectional protection
  • May require additional components for bidirectional protection

Working Principles

The SMAJ18E3/TR13 operates based on the principle of Zener breakdown. When the voltage across the diode exceeds its breakdown voltage, it conducts heavily, diverting excess current away from the protected circuit.

Detailed Application Field Plans

  • Telecommunications: Protects sensitive communication equipment from lightning-induced surges
  • Automotive Electronics: Safeguards vehicle electronics from voltage transients
  • Industrial Control Systems: Ensures reliable operation of control circuitry in harsh electrical environments

Detailed and Complete Alternative Models

  • 1. SMAJ5.0A: 5V reverse standoff voltage, 9.2A peak pulse current
  • 2. SMAJ12A: 12V reverse standoff voltage, 19.9A peak pulse current
  • 3. SMAJ24A: 24V reverse standoff voltage, 38.6A peak pulse current

This comprehensive entry provides detailed information about the SMAJ18E3/TR13 diode, including its specifications, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.

10个与SMAJ18E3/TR13在技术解决方案中的应用相关的常见问题及解答

  1. What is SMAJ18E3/TR13?

    • SMAJ18E3/TR13 is a surface mount transient voltage suppressor diode that is commonly used to protect electronic circuits from overvoltage transients.

  2. What is the maximum working voltage of SMAJ18E3/TR13?

    • The maximum working voltage of SMAJ18E3/TR13 is 18V.

  3. What is the peak pulse power of SMAJ18E3/TR13?

    • The peak pulse power of SMAJ18E3/TR13 is 400W.

  4. How does SMAJ18E3/TR13 protect electronic circuits?

    • SMAJ18E3/TR13 protects electronic circuits by diverting excessive current away from sensitive components when an overvoltage transient occurs.

  5. In what type of applications is SMAJ18E3/TR13 commonly used?

    • SMAJ18E3/TR13 is commonly used in applications such as power supplies, telecommunications equipment, and automotive electronics.

  6. What are the key features of SMAJ18E3/TR13?

    • The key features of SMAJ18E3/TR13 include low clamping voltage, fast response time, and high surge capability.

  7. What is the operating temperature range of SMAJ18E3/TR13?

    • The operating temperature range of SMAJ18E3/TR13 is typically -55°C to 150°C.

  8. How should SMAJ18E3/TR13 be mounted on a PCB?

    • SMAJ18E3/TR13 should be mounted using appropriate soldering techniques and following the manufacturer's recommended footprint and layout guidelines.

  9. Can SMAJ18E3/TR13 be used for ESD protection?

    • Yes, SMAJ18E3/TR13 can be used for electrostatic discharge (ESD) protection in electronic circuits.

  10. Are there any alternative devices to SMAJ18E3/TR13 with similar specifications?

    • Yes, there are alternative devices such as SMBJ18A or SMCJ18A which have similar specifications and can be used as substitutes for SMAJ18E3/TR13 in certain applications.