SMAJ550HE3_AIH Encyclopedia Entry

Product Overview

Category

The SMAJ550HE3_AIH belongs to the category of transient voltage suppressor diodes.

Use

It is used for protecting sensitive electronic devices from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events.

Characteristics

• Voltage Suppression: Provides protection against voltage spikes and transients.
• Fast Response Time: Rapidly clamps voltage transients to protect downstream components.
• Low Leakage Current: Minimizes power consumption during normal operation.
• High Surge Capability: Can withstand high surge currents without degradation.

Package

The SMAJ550HE3_AIH is typically available in a surface-mount package, such as SMB or SMC.

Essence

The essence of this product lies in its ability to safeguard electronic circuits from voltage surges and transients, thereby enhancing the reliability and longevity of electronic devices.

Packaging/Quantity

The product is usually packaged in reels or trays, with quantities varying based on manufacturer specifications.

Specifications

• Peak Pulse Power: 400W
• Breakdown Voltage: 550V
• Operating Temperature Range: -55°C to 150°C
• Reverse Standoff Voltage: 495V
• Forward Voltage Drop: 1.5V at 10A

Detailed Pin Configuration

The SMAJ550HE3_AIH typically features two pins for connection, with the pinout configuration as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Transient Voltage Suppression: Effectively clamps transient voltages to protect downstream components.
• Bidirectional Protection: Offers protection for both positive and negative voltage transients.
• Low Clamping Voltage: Ensures that the protected circuitry is not subjected to excessive voltages.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Fast response time
• Low leakage current
• Compact form factor

Disadvantages

• Limited surge current handling capability compared to larger devices
• Higher clamping voltage compared to some specialized devices

Working Principles

The SMAJ550HE3_AIH operates based on the principle of avalanche breakdown, where it rapidly conducts when the voltage across it exceeds the breakdown voltage, effectively shunting the excess energy away from the protected circuit.

Detailed Application Field Plans

The SMAJ550HE3_AIH is commonly used in various applications, including: - Consumer electronics - Telecommunications equipment - Industrial control systems - Automotive electronics - Power supplies

Detailed and Complete Alternative Models

Some alternative models to the SMAJ550HE3_AIH include: - P6KE550CA - 1.5SMC550CA - SA5.0CA

In conclusion, the SMAJ550HE3_AIH transient voltage suppressor diode offers effective protection against voltage transients and finds widespread use in diverse electronic applications.

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