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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