SMCJ14A Diode - Encyclopedia Entry

Product Overview

The SMCJ14A 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 SMCJ14A diode is known for its high surge capability, fast response time, and compact SMC package. It is typically available in tape and reel packaging with a specified quantity per reel.

Basic Information

• Category: Transient Voltage Suppressor (TVS) Diode
• Use: Protection against voltage spikes and transients
• Characteristics: High surge capability, fast response time
• Package: SMC (Surface Mount Component)
• Packaging/Quantity: Tape and reel packaging, specified quantity per reel

Specifications

• Part Number: SMCJ14A
• Peak Pulse Power: 1500W
• Breakdown Voltage: 14V
• Operating Voltage: 12.1V
• Maximum Clamping Voltage: 19.9V
• Peak Pulse Current: 43.5A
• Polarity: Unidirectional

Detailed Pin Configuration

The SMCJ14A diode has a standard SMC package with two terminals. The pin configuration is as follows: - Pin 1: Anode - Pin 2: 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: Capable of handling large surge currents without degradation.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Fast response time
• Compact SMC package for space-constrained applications

Disadvantages

• Unidirectional protection only
• Limited to specific breakdown voltage and peak pulse power ratings

Working Principles

The SMCJ14A diode operates by diverting transient currents away from sensitive components when a voltage spike occurs. When the operating voltage is exceeded, the diode rapidly switches into a low impedance state, effectively shunting the excess current to ground and limiting the voltage across the protected circuit.

Detailed Application Field Plans

The SMCJ14A diode finds extensive use in various applications, including: - Telecommunications: Protecting communication equipment from lightning-induced surges. - Automotive Electronics: Safeguarding vehicle electronics from voltage transients. - Industrial Control Systems: Ensuring reliable operation of control and monitoring devices in industrial environments.

Detailed and Complete Alternative Models

• SMCJ10A: 10V breakdown voltage, suitable for lower voltage applications.
• SMCJ20A: 20V breakdown voltage, offering higher protection levels for sensitive components.
• SMCJ30A: 30V breakdown voltage, ideal for applications requiring even higher voltage tolerance.

In conclusion, the SMCJ14A diode offers effective transient voltage suppression in a compact SMC package, making it a valuable component in various electronic systems.

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