SMBJ11 Product Overview

Introduction

The SMBJ11 belongs to the category of transient voltage suppressor (TVS) diodes, which are widely used in electronic circuits to protect sensitive components from voltage spikes and transients. These diodes exhibit characteristics such as fast response time, low clamping voltage, and high surge current capability. The SMBJ11 is typically available in a compact package and is designed to provide effective protection against transient overvoltage events.

Basic Information Overview

• Category: Transient Voltage Suppressor (TVS) Diode
• Use: Protection against voltage spikes and transients in electronic circuits
• Characteristics: Fast response time, low clamping voltage, high surge current capability
• Package: SMB (DO-214AA) package
• Essence: Safeguarding sensitive electronic components
• Packaging/Quantity: Typically available in tape and reel packaging with varying quantities

Specifications

The SMBJ11 TVS diode is designed to operate within the following specifications: - Peak Power Dissipation: 600W - Breakdown Voltage Range: 10.5V to 12.2V - Operating Temperature Range: -55°C to +150°C - Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMBJ11 TVS diode features a standard pin configuration with two leads for connection to the circuit. The pinout configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Transient Voltage Suppression: Effectively clamps transient overvoltages to protect downstream components.
• Fast Response Time: Rapid reaction to voltage spikes ensures minimal impact on the protected circuitry.
• Low Clamping Voltage: Limits the voltage across the protected circuit to a safe level.
• High Surge Current Capability: Ability to handle large surge currents during transient events.

Advantages and Disadvantages

Advantages

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

Disadvantages

• Limited peak power dissipation compared to higher-power TVS diodes
• Narrow breakdown voltage range may not cover all application requirements

Working Principles

The SMBJ11 TVS diode operates based on the principle of avalanche breakdown. When a transient overvoltage event occurs, the diode rapidly conducts, diverting the excess energy away from the protected circuit. This action effectively limits the voltage across the circuit, preventing damage to sensitive components.

Detailed Application Field Plans

The SMBJ11 TVS diode finds extensive use in various applications, including: - Consumer Electronics: Protection of USB ports, audio/video inputs, and power supply lines in consumer devices. - Telecommunications: Safeguarding communication interfaces and signal lines in telecommunication equipment. - Automotive Electronics: Protection of automotive electronics against voltage transients induced by load dump and other electrical disturbances. - Industrial Control Systems: Shielding sensitive control circuitry from voltage surges in industrial environments.

Detailed and Complete Alternative Models

For applications requiring different specifications or performance characteristics, alternative TVS diode models that can be considered include: - SMBJ10A: Similar form factor with a lower breakdown voltage range. - SMBJ12CA: Higher peak power dissipation and wider breakdown voltage range. - SMBJ15C: Increased surge current capability and extended operating temperature range.

In conclusion, the SMBJ11 TVS diode offers reliable transient voltage protection in a compact package, making it suitable for a wide range of electronic applications.

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