30KPA42CA-HRA

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30KPA42CA-HRA Application Field and Working Principle

TVS or transient voltage suppressor diodes are commonly used in the electrical industry. They act as protective components, designed to prevent the harmful effects of voltage spikes. The 30KPA42CA-HRA is an reverse avalanche diode designed to reduce voltage spikes.

What is the 30KPA42CA-HRA?

The 30KPA42CA-HRA is a reverse avalanche diode with a Voltage Standoff of 30V and a power dissipation of 250mW. It has a maximum peak pulse power of 1.5kW and a maximum clamping voltage of 42V. It is manufactured by NXP (formerly Philips) and is available in a standard DO-214 package.

Applications of the 30KPA42CA-HRA

The 30KPA42CA-HRA has a variety of applications. It is commonly used in Automotive applications to protect against voltage spikes, such as those caused by load dump or induction effects. It is also used in industrial and general purpose electronics, as well as audio/video equipment and appliances. It is suitable for use in both high and low voltage systems, and its small form factor makes it ideal for tight spaces.

Working Principle of the 30KPA42CA-HRA

The 30KPA42CA-HRA is an avalanche diode which functions by creating an avalanche breakdown effect. When a high surge of voltage is applied, the diode acts like a short circuit, dissipating the energy of the surge by reducing the voltage spike. The amount of energy dissipated is limited by the power dissipation of the diode, which in the case of the 30KPA42CA-HRA is 250mW.

The 30KPA42 CA-HRA also has a clamping voltage, which is the maximum voltage that the diode will protect against. In the case of the 30KPA42CA-HRA, this is 42V. As the voltage increases beyond this level, the diode will cease to be effective and the surge will pass through without protection.

Conclusion

The 30KPA42CA-HRA is an example of a TVS diode, which is commonly used to protect against voltage spikes. It is suitable for use in both high and low voltage systems, and its small form factor makes it ideal for tight spaces. It functions by creating an avalanche breakdown effect, which dissipates the energy of the surge by reducing the voltage spike. Its power dissipation limits the amount of energy it can dissipate, and its clamping voltage is the maximum voltage it will protect against.

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