SMCJ408A Diode - Encyclopedia Entry

Product Overview

The SMCJ408A diode belongs to the category of transient voltage suppressor (TVS) diodes. These diodes are commonly used to protect sensitive electronic components from voltage spikes and transients. The SMCJ408A diode is known for its high surge capability, low clamping voltage, and fast response time. It is typically packaged in a DO-214AB (SMC) package and is available in various packaging quantities.

Basic Information Overview

• Category: Transient Voltage Suppressor (TVS) Diode
• Use: Protection against voltage spikes and transients
• Characteristics: High surge capability, low clamping voltage, fast response time
• Package: DO-214AB (SMC)
• Packaging/Quantity: Available in tape and reel packaging, with quantities ranging from 500 to 3000 units per reel

Specifications

• Part Number: SMCJ408A
• Peak Power Dissipation: 1500W
• Breakdown Voltage: 408V
• Operating Temperature Range: -55°C to +150°C
• Storage Temperature Range: -55°C to +175°C

Detailed Pin Configuration

The SMCJ408A diode has a standard DO-214AB (SMC) package with two pins. Pin 1 is the anode, and pin 2 is the cathode.

Functional Features

• Transient Voltage Suppression: Effectively clamps transient voltages to protect downstream components.
• Fast Response Time: Rapid reaction to voltage spikes ensures minimal impact on the protected circuitry.
• High Surge Capability: Able to withstand large surge currents without degradation.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Fast response time
• High surge capability

Disadvantages

• Clamping voltage may be higher than some alternative models
• Sensitive to reverse voltage polarity

Working Principles

The SMCJ408A diode operates by diverting excess transient current away from sensitive components when a voltage spike occurs. When the voltage exceeds the breakdown voltage of the diode, it begins to conduct, effectively clamping the voltage to a safe level and protecting the connected circuitry.

Detailed Application Field Plans

The SMCJ408A diode finds extensive use in various applications, including: - Power supply units - Communication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the SMCJ408A diode include: - SMCJ5.0A: Breakdown voltage of 5.0V - SMCJ15A: Breakdown voltage of 15V - SMCJ24A: Breakdown voltage of 24V - SMCJ58A: Breakdown voltage of 58V

In conclusion, the SMCJ408A diode is a reliable and effective transient voltage suppressor that offers robust protection against voltage spikes and transients in a wide range of electronic applications.

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