1.5SMC43A-E3/9AT

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TVS - Diodes are useful components in electronic circuits, as they provide protection against transient voltage surges and pulses. The 1.5SMC43A-E3/9AT is one such device, commonly used in today\'s circuit designs. This article will explain what it is and how it works, as well as the applications in which it can be found.

Device Overview

The 1.5SMC43A-E3/9AT is a unidirectional device, which means it only allows electrical current to flow in one direction.

It features a maximum working voltage of 9 volts, and a peak pulse power rating of 43.5 watts. It can be triggered by a minimum voltage of 6.5 volts.

The 1.5SMC43A-E3/9AT is constructed using silicon-carbide technology, and is conformal coated for added durability.

Working Principle

The 1.5SMC43A-E3/9AT is designed to protect against transient voltage surges and voltage spikes. For example, when a high-power voltage spike causes an increase in voltage above the normal operating range, the 1.5SMC43A-E3/9AT will “clamp” the voltage to protect the circuit below it.

When the voltage spike exceeds the device’s maximum working voltage, the 1.5SMC43A-E3/9AT will conduct current away from the device under protection, and will then open itself to prevent further conduction.

This process can be repeated indefinitely without damaging the device, making it ideal for repetitive applications.

Application Fields

The 1.5SMC43A-E3/9AT is used in a variety of electronic circuits, including:

• Consumer electronics, such as TVs and computers
• Industrial applications, such as factory automation and power control systems
• Medical equipment, such as X-ray machines and nebulizers
• Power supply protection, such as storm-surge protection.

It is also a popular choice in the automotive industry, where it is used in safety systems, ECUs, and other automotive components.

Conclusion

The 1.5SMC43A-E3/9AT is a powerful TVS diode designed for a wide variety of applications. Its unidirectional design and conformal coating ensure reliability and durability, while its peak surge power rating allows it to protect against transient voltage surges and spikes of up to 43.5 watts.

The 1.5SMC43A-E3/9AT is also suitable for repetitive applications, as its design allows it to be triggered by just 6.5 volts. It is widely used in consumer electronics, industrial applications, medical equipment, power supply protection, and automotive applications.

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