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CST2N65D

Updated: 2026-07-15

Overview

The CST2N65D is an N-channel MOSFET designed for high-efficiency power management and switching applications. It is widely used in industries such as automotive, industrial automation, and consumer electronics due to its robust performance and reliability. The device is known for its high voltage tolerance and low on-resistance, making it ideal for applications requiring efficient power handling. Its compact design and compatibility with surface-mount technology (SMT) further enhance its appeal in modern electronic designs.

Structure and Working Principle

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The CST2N65D operates as a voltage-controlled switch, where the gate voltage controls the flow of current between the drain and source terminals. Its structure includes a silicon-based semiconductor layer optimized for high voltage and current handling. When a sufficient gate voltage is applied, the MOSFET allows current to flow, acting as a closed switch. The absence of gate voltage turns the device off, functioning as an open switch. This principle is fundamental to its use in power switching circuits.

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Key Features

The CST2N65D boasts several key features, including a high breakdown voltage of 650V, which ensures reliable operation in high-voltage environments. Its low on-resistance minimizes power loss, enhancing overall efficiency. Additionally, the device offers fast switching speeds, reducing transition losses in high-frequency applications. These features make it a preferred choice for designers seeking performance and energy efficiency in power electronics.

Application Areas

The CST2N65D is commonly used in power supplies, motor control systems, and DC-DC converters. Its ability to handle high voltages and currents makes it suitable for industrial and automotive applications. In consumer electronics, it is often found in inverters and battery management systems. The MOSFET's versatility and reliability have cemented its place in a wide range of electronic devices and systems.

Maintenance and Precautions

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Proper handling of the CST2N65D is essential to ensure longevity and performance. Electrostatic discharge (ESD) protection should be used during installation to prevent damage to the sensitive gate structure. Thermal management is another critical consideration. Adequate heat sinking or PCB design for heat dissipation is recommended to maintain optimal operating temperatures and prevent thermal runaway.

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B2B Procurement Guide

When procuring the CST2N65D in bulk, it is advisable to source from reputable suppliers to ensure authenticity and quality. Bulk pricing typically offers significant cost savings, with prices ranging approximately from $0.50 to $1.20 per unit. Key factors to consider include lead times, minimum order quantities (MOQs), and supplier certifications. Partnering with suppliers who provide technical support can also be beneficial for integrating the MOSFET into complex designs.

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