TVS312 Circuit Protection

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A TVS (Transient-Voltage-Suppressor) Diode is a device created to protect sensitive electronics from power surges, transient spikes, and lightning strikes by clamping or “clipping” the voltage. TVS diode models such as the TVS 312 are able to act quickly by bringing potential damages under control within a few nanoseconds. As such, they are often the device of choice for protecting delicate circuits from electrical interference.

The TVS 312 diode is an axial-lead varistor diode offered by STMicroelectronics. It comes in a hermetically sealed package, making it safe to use in most environments. It has an average working voltage of 24V for unidirectional diodes, and 12V for bidirectional diodes. It is able to absorb up to 400W of power. The device shows very low leakage currents and reverse currents, and a breakdown voltage from 6 to 24V depending on the model.

TVS diodes such as the TVS 312 have a wide range of application fields, but are most commonly used in electronic circuit protection against electrical interference. Examples of these applications include: automotive systems, communication systems, medical equipment, television circuits, radio, computers, telecommunication networks, and more.

The main working principle of a TVS diode consists of two main forms of protection, shunt and clamp protection. Shunt protection works by diverting any high current oscillations in the circuit to a low impedance path, while limiting the rise of voltage. On the other hand, clamp protection works by clamping the voltage at a predetermined level, and allowing only small currents to pass through the device. The TVS 312 in particular is able to offer both these methods of protection, making it incredibly versatile and reliable.

In summary, the TVS 312 from STMicroelectronics is a robust diode capable of protecting sensitive electronics from interference. Its hermetically sealed package allows for a broad range of environmental conditions without worry. Its wide range of application fields make it ideal for many types of applications, while its combination of shunt and clamp protection make it a reliable and quick solution when it comes to protecting against power surges and transient spikes.

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