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SMAJ85A-TP
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SMAJ85A-TP

Introduction

The SMAJ85A-TP is a component belonging to the category of transient voltage suppressor diodes. This entry provides an overview of its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Basic Information Overview

  • Category: Transient Voltage Suppressor Diode
  • Use: 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 capability.
  • Package: DO-214AC (SMA), SMC package.
  • Essence: Silicon transient voltage suppressor diode.
  • Packaging/Quantity: Available in tape and reel packaging with various quantities.

Specifications

  • Part Number: SMAJ85A-TP
  • Peak Pulse Power: 400W
  • Breakdown Voltage: 85V
  • Operating Voltage: 77.4V
  • Clamping Voltage: 135V
  • Peak Pulse Current: 5.8A
  • Reverse Standoff Voltage: 85V
  • Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMAJ85A-TP follows the standard pin configuration for diodes, with anode and cathode terminals clearly marked on the package.

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient overvoltage events to protect downstream components.
  • Fast Response Time: Rapid reaction to voltage transients ensures minimal impact on the protected circuitry.
  • High Surge Capability: Capable of withstanding high surge currents without degradation.

Advantages and Disadvantages

Advantages

  • Effective protection against voltage transients.
  • Fast response time.
  • Compact package size for easy integration into circuits.

Disadvantages

  • Clamping voltage may be relatively high for some applications.
  • Limited power dissipation capability compared to larger devices.

Working Principles

The SMAJ85A-TP operates based on the principle of avalanche breakdown, where it rapidly conducts excess current when the voltage across it exceeds the breakdown voltage, thereby diverting the transient energy away from the protected circuit.

Detailed Application Field Plans

The SMAJ85A-TP finds extensive use in various applications, including: - Telecommunication Equipment: Protecting sensitive communication circuits from lightning-induced surges. - Industrial Control Systems: Safeguarding control electronics from inductive load switching transients. - Consumer Electronics: Providing ESD protection for USB ports, HDMI interfaces, and other vulnerable connections.

Detailed and Complete Alternative Models

  • Alternative Model 1: SMBJ85A-TP

    • Category: Transient Voltage Suppressor Diode
    • Breakdown Voltage: 85V
    • Package: DO-214AA (SMB)

  • Alternative Model 2: P6SMB85A-TP

    • Category: Transient Voltage Suppressor Diode
    • Breakdown Voltage: 85V
    • Package: DO-214AA (SMB)

In conclusion, the SMAJ85A-TP transient voltage suppressor diode offers effective protection against voltage transients in a compact package, making it suitable for a wide range of applications.

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10個與SMAJ85A-TP在技術方案中應用相關的常見問題與解答

  1. What is the maximum reverse voltage rating of SMAJ85A-TP?

    • The maximum reverse voltage rating of SMAJ85A-TP is 85V.

  2. What is the peak pulse power dissipation of SMAJ85A-TP?

    • The peak pulse power dissipation of SMAJ85A-TP is 400W for a 10/1000μs waveform.

  3. What is the breakdown voltage of SMAJ85A-TP?

    • The breakdown voltage of SMAJ85A-TP is typically 94.4V at a test current of 1mA.

  4. What is the operating temperature range of SMAJ85A-TP?

    • The operating temperature range of SMAJ85A-TP is -55°C to +150°C.

  5. What are the typical applications of SMAJ85A-TP?

    • SMAJ85A-TP is commonly used in surge protection for sensitive electronics, such as in telecommunications equipment, industrial control systems, and automotive electronics.

  6. What is the response time of SMAJ85A-TP?

    • The response time of SMAJ85A-TP is very fast, typically responding within nanoseconds to clamp transient voltages.

  7. Does SMAJ85A-TP require any external components for proper operation?

    • SMAJ85A-TP does not require any external components for basic surge protection, but additional circuitry may be needed for specific applications.

  8. Is SMAJ85A-TP RoHS compliant?

    • Yes, SMAJ85A-TP is RoHS compliant, meaning it meets the Restriction of Hazardous Substances directive.

  9. What is the package type of SMAJ85A-TP?

    • SMAJ85A-TP is available in a DO-214AC (SMA) package.

  10. Can SMAJ85A-TP be used for ESD protection?

    • Yes, SMAJ85A-TP can be used for electrostatic discharge (ESD) protection in addition to surge protection.

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