SM5A27HE3/2D

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TVS (Transient Voltage Suppressors) diodes are devices used to protect sensitive electrical components, connected circuitry, and equipment from high voltage transients, induced either by lightning, power switching surge, or static discharge. The SM5A27HE3/2D is a Transient Voltage Suppressor diode designed and manufactured to protect against induced surges or spikes of high voltage.

Application field of SM5A27HE3/2D
The SM5A27HE3/2D is specifically designed to protect both information technology and communication equipment. By allowing a flow of electricity in normal conditions as well as in the event of an induced surge or spike, this TVS diode can protect cellular systems, power supplies, LED lighting modules, home appliances, protection of data lines, portable radio equipment, and other applications.

Working principle
In normal operation, the SM5A27HE3/2D allows a flow of bi-directional current in one direction due to its highly capacitive body. When subjected to an induced surge of high voltage, or a short-duration transient, the TVS diode automatically switches off, reducing the voltage passing through the circuit by limiting the current flow. During this operation, the SM5A27HE3/2D tends to dissipate the induced surge in the form of heat. The device is designed to automatically reset to its original state as soon as the induced surge has disappeared.

The SM5A27HE3/2D offers a wide operating temperature range and can withstand up to 400V. It also has a high thermal stability and provides electrostatic protection. The device can dissipate up to 46A of maximum current and can also be operated at frequencies up to 20 MHz. It has a low clamping voltage of 3.9V and a low capacitance of 0.3 to 0.5 pF.

TVS diodes such as the SM5A27HE3/2D are increasingly becoming important components in the world of electronics as they can offer high levels of protection against voltage transients and spikes as well as protection against induced surges. By providing a bi-directional flow of current in one direction, this device offers outstanding protection against these transients and surges.

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