SM5S28ATHE3/I

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TVS - Diodes have a wide application field and encompass a broad range of components which protect electric and electronic circuits against transients. Amongst those components, the SM5S28ATHE3/I deserves special attention. This single component is composed of two function blocks – a transient voltage suppressor or a transient suppressor-diode (steady-state) and a self-protection switching thyristor. The two transitions, which are between the self-protection switching thyristor and the transient suppressor-diode enable the SM5S28ATHE3/I to provide excellent power line-conditioning and protection from various transient voltage events.

The SM5S28ATHE3/I is designed with a bidirectional voltage clamp diode in combination with a thyristor switch to provide over-voltage protection. The integrated protector element operates with a switching response time of less than 1ns, protecting against over-voltage events such as transients, peaks, and other surges. The integrated switch is triggered at a given voltage and the maximum current is limited to 17A. This state-of-the-art design also provides excellent power line-conditioning and noise filtering, allowing safe operations in noisy industrial, medical, and automotive applications.

The working principle behind the SM5S28ATHE3/I is simple. The diode is designed to clamp the voltage below a certain threshold to protect the circuit in case of an over-voltage. The integrated thyristor on the other hand is triggered when the specified protection threshold is exceeded and the thyristor sets up a shunt connection to the ground, limiting the current flow through the diode. This two-transition approach enables the SM5S28ATHE3/I to protect against transients, spikes, and even short-duration surges.

Due to its effective voltage clamping and high-speed surge protection, the SM5S28ATHE3/I is widely used in a variety of applications. It is especially suitable for the protection of industrial control boards, power supply units, automotive systems, and medical equipment. Its features also make it a robust solution for all sorts of noise suppression, power line-conditioning and spike protection applications.

In summary, the SM5S28ATHE3/I is a versatile and cost-effective TVS - Diode offering reliable transient and spike protection. Its integrated diode and thyristor enable it to effectively clamp the voltage and limit the maximum current flowing through the protector. This makes it an extremely efficient solution for protecting against over-voltage transients, peaks, and other surges in industrial, medical, and automotive applications.

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