SMCJ150C - English Editing Encyclopedia Entry

Product Overview

Category

The SMCJ150C belongs to the category of transient voltage suppressor (TVS) diodes.

Use

It is used to protect sensitive electronic components from voltage transients induced by lightning, inductive load switching, and electrostatic discharge.

Characteristics

• Voltage Suppression: Provides protection against voltage spikes and surges.
• Fast Response Time: Rapidly clamps transient voltages to a safe level.
• Low Leakage Current: Minimizes power consumption during normal operation.
• High Surge Current Capability: Can handle large surge currents without degradation.

Package

The SMCJ150C is typically available in a surface mount package, such as SMB (DO-214AA), with a compact form factor for easy integration onto circuit boards.

Essence

The essence of the SMCJ150C lies in its ability to safeguard electronic circuits from damaging voltage spikes, ensuring the reliability and longevity of the connected devices.

Packaging/Quantity

It is commonly supplied in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

• Standoff Voltage: 150V
• Breakdown Voltage: 167V
• Peak Pulse Power: 1500W
• Operating Temperature Range: -55°C to 150°C
• Polarity: Unidirectional

Detailed Pin Configuration

The SMCJ150C typically has two pins in a surface mount package. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Transient Voltage Suppression: Clamps transient voltages to a safe level, protecting downstream components.
• Fast Response Time: Reacts quickly to voltage spikes, minimizing the risk of damage.
• Low Clamping Voltage: Ensures that the protected circuit operates within safe voltage limits.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Fast response time
• Low leakage current
• Compact surface mount package for easy integration

Disadvantages

• Unidirectional protection only
• Limited to specific voltage ratings

Working Principles

The SMCJ150C operates based on the principle of avalanche breakdown. When a voltage transient occurs, the diode rapidly switches into its low impedance state, diverting excess current away from the protected circuit.

Detailed Application Field Plans

The SMCJ150C is widely used in various applications, including: - Telecommunications: Protecting communication equipment from lightning-induced surges. - Automotive Electronics: Safeguarding vehicle electronics from voltage spikes. - Industrial Control Systems: Ensuring the reliability of control circuitry in industrial environments. - Consumer Electronics: Protecting sensitive electronic devices from electrostatic discharge.

Detailed and Complete Alternative Models

• SMCJ130A: Standoff Voltage 130V, Breakdown Voltage 144V
• SMCJ160C: Standoff Voltage 160V, Breakdown Voltage 178V
• SMCJ200CA: Standoff Voltage 200V, Breakdown Voltage 222V

In conclusion, the SMCJ150C transient voltage suppressor diode offers effective protection against voltage transients, with fast response times and low leakage current. Its compact surface mount package makes it suitable for a wide range of applications, from telecommunications to consumer electronics.

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