SMCJ1.5KE15CA-TP Circuit Protection

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TVS - Diodes

TVS diodes, or transient voltage suppression diodes, are semiconductor devices designed to protect electronic circuits from excessive voltages due to transient events such as electrostatic discharge (ESD), electrical fast transients (EFT), and lightning strikes. They are typically low power, designed to protect low-voltage signals.

The SMCJ1.5KE15CA-TP is one of the most popular types of TVS diodes, providing bidirectional protection for circuits with up to 15 volts from ESD and EFT events. This diode is designed for both surface-mount and through-hole applications, and can handle impulse current up to 12 amperes.

Application Field and Working Principle

The SMCJ1.5KE15CA-TP is best used in applications that require protection from power disturbances, such as low-voltage power supplies and industrial control systems. It is also suitable for use in consumer electronics and communications equipment, including wired and wireless devices, consumer appliances, LED lighting, medical equipment, and even automotive applications.

The SMCJ1.5KE15CA-TP features a bidirectional TVS protection structure, which ensures the diode can provide protection in both directions. The diode operates using a simple principle known as avalanche breakdown. When an over-voltage, or transient, is applied to the diode, its PN junction is disturbed by the strong electric field. This creates a series of high-energy electrons and holes which travel both directions through the diode, creating a low-impedance current path which allows the transient to be safely and quickly dissipated.

The diode is designed with a built-in clamping voltage, which limits the transient to a voltage level that is safe for the device being protected. It also has a short, fast response time, allowing it to respond quickly to any transient events before they can cause damage.

Another key feature of the device is the ability to withstand and dissipate up to 1500 watts of peak power during a transient event. This ensures that it can handle a wide range of transient events, including ESD, EFT, and lightning strikes.

In addition, the device is UL certified, indicating that it meets safety standards set by Underwriters Laboratories, the leading authority in the safe design and operation of electrical products.

The SMCJ1.5KE15CA-TP is a reliable, cost-effective way to protect devices from ESD, EFT, and other power disturbances. Its simple yet robust protection structure ensures that it will provide reliable protection for years to come.

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