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SMBJ85A
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SMBJ85A - Product Overview

Introduction

The SMBJ85A is a diode belonging to the category of transient voltage suppressor (TVS) diodes. These diodes are widely used for protecting sensitive electronics from voltage spikes and surges. The SMBJ85A offers unique characteristics, packaging, and specifications that make it suitable for various applications.

Basic Information Overview

  • Category: Transient Voltage Suppressor (TVS) Diode
  • Use: Protection against voltage spikes and surges
  • Characteristics: Fast response time, low clamping voltage, high surge current capability
  • Package: SMB (DO-214AA)
  • Essence: Safeguarding electronic circuits from transient overvoltage events
  • Packaging/Quantity: Available in tape and reel packaging, with quantities varying based on supplier and demand

Specifications

  • Voltage - Reverse Standoff (Typ): 85V
  • Voltage - Breakdown (Min): 94.4V
  • Voltage - Clamping (Max) @ Ipp: 137V
  • Current - Peak Pulse (10/1000µs): 17.2A
  • Power - Peak Pulse: 600W
  • Type: Zener

Detailed Pin Configuration

The SMBJ85A diode has a simple two-pin configuration: 1. Anode (A) 2. Cathode (K)

Functional Features

  • Fast Response Time: Rapid reaction to voltage transients
  • Low Clamping Voltage: Limits the voltage across the protected circuit
  • High Surge Current Capability: Ability to handle large surge currents without damage

Advantages and Disadvantages

Advantages

  • Effective protection against voltage spikes
  • Compact size for easy integration into circuit designs
  • Wide operating temperature range

Disadvantages

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

Working Principles

The SMBJ85A operates by diverting excess transient current away from sensitive components when a voltage spike occurs. It rapidly clamps the voltage to a safe level, preventing damage to the connected circuitry.

Detailed Application Field Plans

The SMBJ85A finds application in various fields, including: - Telecommunications: Protecting communication equipment from lightning-induced surges - Automotive: Safeguarding vehicle electronics from voltage transients - Industrial Electronics: Shielding control systems from power surges

Detailed and Complete Alternative Models

  • SMBJ5.0A: Lower voltage rating for less demanding applications
  • SMBJ170A: Higher voltage rating for more robust surge protection
  • SMBJ24CA: Bi-directional TVS diode for bidirectional surge protection

In conclusion, the SMBJ85A transient voltage suppressor diode offers effective protection against voltage spikes and surges, making it an essential component in safeguarding sensitive electronics across various industries.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMBJ85A v technických řešeních

  1. What is the SMBJ85A?

    • The SMBJ85A is a transient voltage suppressor diode designed to protect sensitive electronic components from voltage spikes and transients.

  2. What is the maximum working voltage of the SMBJ85A?

    • The SMBJ85A has a maximum working voltage of 85 volts.

  3. What is the peak pulse power handling capability of the SMBJ85A?

    • The SMBJ85A can handle peak pulse power up to 600 watts.

  4. In what type of technical solutions is the SMBJ85A commonly used?

    • The SMBJ85A is commonly used in applications such as power supplies, telecommunications equipment, and automotive electronics to protect against voltage surges and transients.

  5. What is the response time of the SMBJ85A to a transient voltage surge?

    • The response time of the SMBJ85A to a transient voltage surge is very fast, typically in the nanosecond range.

  6. Does the SMBJ85A require any external components for proper operation?

    • The SMBJ85A does not require any external components for its basic operation, but it may be used in conjunction with other circuit protection devices for enhanced performance.

  7. What is the operating temperature range of the SMBJ85A?

    • The SMBJ85A has an operating temperature range of -55°C to 150°C, making it suitable for a wide range of environments.

  8. Can the SMBJ85A be used for both unidirectional and bidirectional protection?

    • Yes, the SMBJ85A is available in both unidirectional and bidirectional configurations, making it versatile for different application requirements.

  9. What are the key features of the SMBJ85A that make it suitable for technical solutions?

    • The SMBJ85A offers low clamping voltage, fast response time, and high surge capability, making it ideal for protecting sensitive electronic components.

  10. Are there any specific layout or mounting considerations for using the SMBJ85A in a technical solution?

    • It is important to minimize the length and area of the traces connecting the SMBJ85A to the circuit to reduce inductance and ensure optimal performance. Additionally, proper heat sinking and thermal management should be considered for high-power applications.