ESDA18-1F2 Circuit Protection

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TVS (Transient Voltage Suppressor) Diodes are equipped with an avalanche breakdown mechanism that allows them to effectively absorb and divert voltage signals of an abrupt, high energy nature and quickly clamp them down to the device’s limiting voltage, which is typically 10 to 11V for a 500W system. The ESDA18-1F2, produced by NXP Semiconductors, is a TVS diode that offers superior protection against ESD and lightning surge events, allowing up to 1,000W of peak power dissipation with a clamping voltage of less than 14V. This device is well-suited for a wide variety of applications, from AC/DC adaptor, PC Board Interface, Electrostatic Discharge (ESD) and overvoltage protection to automotive, handheld, and industrial assemblies.

The mechanism of action of the TVS diode begins with the avalanche avalanche breakdown of the diode. When this breakdown occurs, electron-hole pairs are created that causes a very small current to flow in the diode. This creates a depletion region between the p-type and n-type semiconductors that are connected across the diode, routing the excess voltage to ground. This current flows until the circuit is restored to its normal operating voltage, at which point the diode becomes non-conductive again.

The ESDA18-1F2 TVS diode has a high surge capability, allowing it to effectively absorb and divert high voltage signals, while also providing excellent temperature stability. This TVS diode is designed to absorb and divert very high-speed signals, making it ideal for a variety of applications. It has a wide operating temperature range, from -55°C to +150°C, and is also highly resistant to moisture, UV exposure, and mechanical stress, making it a durable and dependable solution.

The device is designed with an internal reverse voltage blocking element, which helps avoid any voltage damage to sensitive parts of the system. Additionally, it features an internal thermal protection element that keeps any thermal damages in check. This helps maintain the device’s superior protection capability despite environmental conditions.

The ESDA18-1F2 TVS diode is a simple, yet effective device that offers reliable protection from ESD and lightning surge events. Its superior surge capability, wide operating temperature range, and high resistance to environmental conditions makes it an excellent choice for a variety of applications. Whether it’s used for AC/DC adaptor, PC Board Interface, ESD or overvoltage protection, the ESDA18-1F2 is sure to meet the most demanding requirements.

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