1.5KE82

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TVS – Diodes are widely used in the electronics industry. They are designed for a wide variety of applications, including overvoltage protection, impedance matching circuits, and surge protection. The 1.5KE82 is a type of Transient Voltage Suppressor (TVS) diode developed by ON Semiconductor. It offers protection against overvoltage, anti-static discharge, and electrostatic discharge (ESD) in a variety of environments. In this article, we’ll take a closer look at the 1.5KE82’s application field and working principle.

What is 1.5KE82?

1.5KE82 is an ultra-fast, low-capacitance, diode array with overvoltage protection (OVP) designed specifically for surge protection and ESD protection in fragile electronics. It is a unidirectional device with its silicon fabrication integrated between two metal layers. This type of TVS diode is designed to keep voltage spikes within acceptable limits during surges caused by events such as lightning, static electricity, and other fault conditions. It acts as a two-stage protection device, with a breakdown voltage of 4.6 V and a clamping voltage of 5.2 V.

Application Field

1.5KE82 is ideal for use in embedded systems, consumer, and automotive electronics. It is used in low-voltage circuits to provide protection against overvoltage and ESD. It is widely used in Ethernet ports, USB ports, and other applications that require protection against voltage fluctuations and spikes. It may also be used in sensitive analog signal chains, such as audio circuits, for instance.

Working Principle

When a transient overvoltage exceeds the TVS diode’s breakdown voltage, it begins to conduct. This allows the energy from the overvoltage to be diverted away from the sensitive electronics. At the same time, the TVS diode functions as a clamping device, limiting the maximum voltage that the circuit can experience. Since the TVS diode is designed to limit voltages to a specific point, it is important to select the appropriate rating for the circuit.

The 1.5KE82 is designed to begin conducting when the voltage reaches its breakdown point and clamp at a higher voltage. This allows protection against high-frequency transients, such as those caused by static electricity, lightning, or power fault conditions. This device also prevents ESD from damaging the circuit.

Conclusion

The 1.5KE82 is an ultra-fast, low-capacitance, diode array with overvoltage protection (OVP) designed specifically for surge protection and ESD protection in fragile electronics. It is an ideal choice for use in embedded systems, consumer, and automotive electronics. Its operating principle relies on its breakdown and clamping points, which make it effective in providing protection against transient overvoltages, ESD, and other fault conditions. Thanks to its design, the 1.5KE82 offers a great level of protection for circuits used in a variety of applications.

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