SMBJ28C-E3/5B

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The SMBJ28C-E3/5B is a model of a transient voltage suppressor (TVS) diode, a type of device used to help protect sensitive electrical and electronic circuits from sudden power surges, such as those caused by electrical columns, lightning strikes, or short circuits. This model is designed for a reverse-bias voltage of maximum 28 volts and stands out by its superior power-handling capacity of 2350 watts peak pulse power (P PPM ). It is also considered to be lightweight and cost-effective.

TVS diodes are generally reliable and effective at protecting against power surges. They are especially important when dealing with sensitive circuits which are susceptible to destruction or damage due to power spikes. As the SMBJ28C-E3/5B is designed with superior power-handling capacity, it is suitable for use in applications which require protection from heavy electrical surges. As such, this model is often used in consumer electronics, electrical appliances, telecommunications, and automotive equipment.

The working principle of the SMBJ28C-E3/5B is based on the characteristic of a diode to switch between two stable states: forward-bias and reverse-bias. A reverse-biased state occurs when the external circuit is connected in a way that the diode is rendered non-conductive, due to complete suppression of the electric field across the junction. In this situation, any current surge present in the circuit will cause a voltage surge known as a back-EMF. This surge triggers the TVS to quickly transition to a forward-bias state, which in turn, prevents device failure due to excessive power.

In addition to protecting against voltage surges, the SMBJ28C-E3/5B also helps to reduce the buildup of heat which can cause damage. This is enabled by the low inherent capacitance of the diode, which helps to dissipate any excess voltage and prevents thermal runaway. Similarly, the model\'s low reverse-breakdown voltage reduces the chance of the diode\'s failure under high voltage conditions.

In conclusion, the SMBJ28C-E3/5B is a reliable and cost-effective model of a TVS diode which is designed to protect sensitive electrical and electronic circuits from voltage surges. Its superior power-handling capacity and compact size make this model suitable for use in consumer electronics, electrical appliances, telecommunications, and automotive equipment. It works by quickly transitioning to a forward-bias state when a voltage or current surge is detected, and also helps to dissipate any heat buildup or prevent thermal runaway.

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