ESDLIN1524BJ Circuit Protection

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TVS (transient voltage suppression) diodes are used in many common devices for providing overvoltage protection. These devices can protect against electrostatic discharges (ESDs) and transient higher voltages. The ESDLIN1524BJ is a unidirectional TVS-diode designed for protecting certain devices from voltage threats. This article examines the application field and working principle of the ESDLIN1524BJ.

Application field

The ESDLIN1524BJ is mainly designed to protect signaling lines in various devices from ESD, surges, and lightning strikes. This diode is suitable for protecting Internet of Things (IoTs), consumer electronics, automotive, and industrial applications. It can also be inserted into circuits using I/O ports, such as USB, HDMI, DisplayPort, and VGA lines. In addition, this diode can be employed in other applications where high-energy surges need to be limited, such as power over Ethernet (PoE) devices, cable/satellite receivers, motor control circuits, access control systems and communication systems.

Working principle

The ESDLIN1524BJ is a unidirectional diode that functions as a voltage clamping element, protecting the connected devices from overvoltage surges. When the voltage on the protected line rises above a certain level (commonly referred to as the breakdown voltage, or the maximum working voltage), the ESDLIN1524BJ starts conducting and the current is limited to a certain level (commonly referred to as the maximum rated current). This process is called clamping and the diode is referred to as a voltage clamping element.

The ESDLIN1524BJ provides a low leakage current and is available in two versions: a 600 W version and a 1500 W version. The 600 W version is suitable for a range from 1 to 20V, while the 1500 W version can handle a range from 6 to 30V. These devices have a wide operating temperature range from -55 to +125 °C, making them suitable for use in a range of different environmental conditions.

The ESDLIN1524BJ features a Positive Temperature Coefficient (PTC), which increases the resistance of the device as the ambient temperature increases. This helps to protect it from overheating and ensures that it can safely dissipate any excess energy.

Overall, the ESDLIN1524BJ is an effective voltage clamping element, capable of providing adequate protection for various sensitive devices from overvoltage surges. Its wide operating temperature range and PTC characteristics make it a reliable protection device for various different applications.

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