Vishay Semiconductor Diodes Division
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SA85AHE3/54
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SA85AHE3/54

Product Overview

SA85AHE3/54 belongs to the category of high-speed switching diodes. These diodes are commonly used in electronic circuits for various applications such as signal processing, voltage rectification, and frequency mixing. The SA85AHE3/54 diode is known for its high switching speed, low capacitance, and low forward voltage, making it suitable for high-frequency applications. It is available in a small package and is typically sold in reels of 3000 units.

Specifications

  • Forward Voltage: 0.7V
  • Reverse Voltage: 85V
  • Forward Current: 500mA
  • Capacitance: 2pF
  • Package: SOD-123

Detailed Pin Configuration

The SA85AHE3/54 diode has two pins, an anode, and a cathode. The anode is connected to the positive terminal of the circuit, while the cathode is connected to the negative terminal.

Functional Features

  • High switching speed
  • Low forward voltage
  • Low capacitance
  • Small package size

Advantages

  • Suitable for high-frequency applications
  • Low power consumption
  • Compact and lightweight design

Disadvantages

  • Limited reverse voltage compared to other diodes in the same category
  • Sensitivity to voltage spikes

Working Principles

The SA85AHE3/54 diode operates based on the principle of semiconductor junction. When a forward voltage is applied across the anode and cathode, it allows current to flow in one direction while blocking it in the opposite direction. This property makes it useful for rectifying alternating current (AC) into direct current (DC) and for high-speed switching applications.

Detailed Application Field Plans

The SA85AHE3/54 diode finds extensive use in the following applications: - High-frequency signal processing - Voltage rectification in power supplies - Frequency mixing in communication systems - Pulse and waveform shaping in instrumentation

Detailed and Complete Alternative Models

  • 1N4148: Similar high-speed switching diode with a slightly lower forward voltage
  • BAT54S: Dual series high-speed switching diode with comparable characteristics
  • BAV99: Dual series high-speed switching diode with higher reverse voltage rating

In conclusion, the SA85AHE3/54 high-speed switching diode offers excellent performance for high-frequency applications, despite its limitations in reverse voltage and sensitivity to voltage spikes. Its compact design and low power consumption make it a preferred choice for various electronic circuits requiring fast switching and low capacitance.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SA85AHE3/54 v technických řešeních

  1. What is SA85AHE3/54?

    • SA85AHE3/54 is a high-efficiency, surface-mount Schottky rectifier diode commonly used in electronic circuits.

  2. What is the maximum forward voltage of SA85AHE3/54?

    • The maximum forward voltage of SA85AHE3/54 is typically around 0.55V at a forward current of 8.5A.

  3. What is the reverse voltage rating of SA85AHE3/54?

    • SA85AHE3/54 has a reverse voltage rating of 40V, making it suitable for low to medium voltage applications.

  4. What are the typical applications of SA85AHE3/54?

    • SA85AHE3/54 is commonly used in power supplies, DC-DC converters, and other high-frequency switching applications.

  5. What is the maximum junction temperature of SA85AHE3/54?

    • The maximum junction temperature of SA85AHE3/54 is 150°C, ensuring its reliability in various operating conditions.

  6. What is the package type of SA85AHE3/54?

    • SA85AHE3/54 comes in a surface-mount SMB (DO-214AA) package, which is suitable for automated assembly processes.

  7. What is the reverse recovery time of SA85AHE3/54?

    • The reverse recovery time of SA85AHE3/54 is typically around 15ns, enabling fast and efficient switching performance.

  8. Is SA85AHE3/54 RoHS compliant?

    • Yes, SA85AHE3/54 is RoHS compliant, meeting environmental standards for lead-free manufacturing.

  9. What are the key advantages of using SA85AHE3/54 in technical solutions?

    • SA85AHE3/54 offers low forward voltage drop, high current capability, and fast switching characteristics, making it ideal for high-efficiency designs.

  10. Where can I find detailed specifications and application notes for SA85AHE3/54?

    • Detailed specifications and application notes for SA85AHE3/54 can be found in the product datasheet provided by the manufacturer or distributor.