30KPA28A-HRA

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TVS - Diodes

A Transient Voltage Suppressor (TVS) diode is a component that safeguards sensitive electronic devices from voltage transients caused by lightning, electrostatic discharge (ESD) and more. It does this by clamping or limiting unwanted high voltage transients.

The 30KPA28A-HRA is an advanced TVS diode with unidirectional (positive) polarity. It acts as a protector of electronic equipment from voltage transients induced by lightning or other high energy surges and provides robust ESD and other fast transients protection. The device limits voltage transients up to 28A peak pulse current with a maximum peak pulse power of 8.4kW at 10/1000 microseconds wave form.

Application Field and Working Principle

The 30KPA28A-HRA is widely used in power supplies, telecommunication systems, computers, and electronic components such as LCD or LED displays. Its fast response time and low clamping voltage make it ideal for protection against surges, spikes, and other over-voltage events. It can be used in a variety of applications, such as automotive, industrial, and medical.

When the 30KPA28A-HRA is reverse biased, it acts as a diode behaving like an open circuit and its voltage across the junction is equal to the applied reverse voltage. When a voltage transient appears, the reverse bias of the diode junction is changed, and when the applied voltage reaches the breakdown voltage, an avalanche occurs by which the current starts to flow through the diode.

The 60KPA28A-HRA comprises a Zener diode and a metal oxide varistor (MOV). In this type of TVS diode, the Zener diode provides fast response during a transient by clamping the voltage and the MOV absorbs most of the energy after the first nanoseconds of the transient, thus providing prolonged protection.

The 30KPA28A-HRA also includes a temperature-compensating circuit to keep its breakdown voltage stable in different temperatures. When the temperatures increases, the circuit will reduce the breakdown voltage so that it remains at the same level. This helps ensure that the device operates within specified limits even under high temperature operations.

The 30KPA28A-HRA is a valuable tool for protecting electronic components and equipment from voltage transients. With its advanced protection features, it can offer reliable protection for a variety of applications. With its broad temperature range, it can be used in a wide variety of environments, ensuring its reliability even in extreme conditions.

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