Vishay Semiconductor Diodes Division
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SMAJ85HE3/5A
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SMAJ85HE3/5A

Product Overview

  • Category: Electronic Component
  • Use: Voltage Suppression in Electronic Circuits
  • Characteristics: Transient Voltage Suppressor Diode
  • Package: DO-214AC (SMA)
  • Essence: Protects electronic circuits from voltage spikes
  • Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Voltage - Reverse Standoff (Typ): 85V
  • Voltage - Breakdown (Min): 94.4V
  • Clamping Voltage (Max) @ Ipp: 137V
  • Peak Pulse Current: 5A
  • Power Dissipation (Max): 400W
  • Operating Temperature: -55°C to 150°C

Detailed Pin Configuration

The SMAJ85HE3/5A has two pins, with the anode connected to the positive side and the cathode connected to the negative side.

Functional Features

  • Provides protection against transient voltage events
  • Fast response time
  • Low clamping voltage
  • High surge capability

Advantages

  • Robust overvoltage protection
  • Compact size
  • Wide operating temperature range

Disadvantages

  • Limited peak pulse current compared to some alternatives
  • Higher clamping voltage than some alternatives

Working Principles

The SMAJ85HE3/5A operates by diverting excess voltage away from sensitive electronic components, thereby protecting them from damage due to transient voltage events such as lightning strikes or electrostatic discharge.

Detailed Application Field Plans

  • Used in power supplies
  • Telecommunication equipment
  • Industrial control systems
  • Automotive electronics
  • Consumer electronics

Detailed and Complete Alternative Models

  1. P6KE82CA: Similar voltage rating, higher peak pulse current
  2. 1.5KE100CA: Higher voltage rating, lower clamping voltage

This completes the entry for SMAJ85HE3/5A, providing a comprehensive overview of its category, use, characteristics, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Texniki həllərdə SMAJ85HE3/5A tətbiqi ilə bağlı 10 ümumi sual və cavabı sadalayın

  1. What is the maximum reverse voltage for SMAJ85HE3/5A?

    • The maximum reverse voltage for SMAJ85HE3/5A is 85V.

  2. What is the typical forward voltage drop for SMAJ85HE3/5A?

    • The typical forward voltage drop for SMAJ85HE3/5A is 0.77V at 1A.

  3. What is the peak pulse power dissipation of SMAJ85HE3/5A?

    • The peak pulse power dissipation of SMAJ85HE3/5A is 400W for an 8/20µs waveform.

  4. What is the operating temperature range for SMAJ85HE3/5A?

    • The operating temperature range for SMAJ85HE3/5A is -55°C to +150°C.

  5. What are the typical applications for SMAJ85HE3/5A?

    • SMAJ85HE3/5A is commonly used in surge protection for sensitive electronics, such as in power supplies, telecommunications equipment, and automotive systems.

  6. What is the breakdown voltage of SMAJ85HE3/5A?

    • The breakdown voltage of SMAJ85HE3/5A is typically 94.4V at a test current of 1mA.

  7. Is SMAJ85HE3/5A RoHS compliant?

    • Yes, SMAJ85HE3/5A is RoHS compliant, meaning it meets the Restriction of Hazardous Substances directive.

  8. What is the package type for SMAJ85HE3/5A?

    • SMAJ85HE3/5A comes in a DO-214AC (SMA) package.

  9. What is the clamping voltage of SMAJ85HE3/5A?

    • The clamping voltage of SMAJ85HE3/5A is typically 137V at a peak pulse current of 10A.

  10. What are the key differences between SMAJ85HE3/5A and other similar transient voltage suppressor diodes?

    • SMAJ85HE3/5A offers a higher maximum reverse voltage and lower typical forward voltage drop compared to some similar diodes, making it suitable for specific applications requiring these characteristics.