PESD12VS4UD,115

TVS–Diodes

Transient Voltage Suppressor Diodes (TVS) are a kind of device used to protect circuits and the components connected in the circuits from transient voltage spikes. The spike occurs due to inductive switching, electrostatic discharge, surges in telecom supply and other DC sources. The surge needs to be absorb and diverted away from sensitive electronic components to avoid transient damage or shorts and hence these TVS- Diodes come in handy. Here we will look at PESD12VS4UD,115, an application field and its working principle.

Application Field

The PESD12VS4UD,115 features an ultra-low-capacitance bidirectional ultra-fast TVS (Transient Voltage Suppressor), which is designed to protect high-speed data lines from voltage transients induced by electrostatic discharge (ESD) or other transients. With excellent clamping capability, this device makes it suitable for use in today’s high-performance systems such as graphic cards, audio cards, telecom and networking. It is housed in the SOT23 surface mount package which provides a wide operating temperature range from -55 to +125 and an ultimate peak pulse power of 12W (8/20 μs).

Working Principle

The PESD12VS4UD,115 works by providing a very low capacitance bidirectional protection to the data lines. This is usually done by connecting the two ends together via a common connection. The device provides a low impedance path for current to flow in the event of a voltage surge, thus preventing the device from being damaged. The device is also known as a surge suppressor and operates by dissipating the excess energy resulting from the surge and thus preventing damage to the connected components. When the surge voltage is exceeded, the diode turns on and conducts the flow of current away from the device, thus suppressing the voltage level. Despite its small size, the PESD12VS4UD,115 provides very high surge current capabilities which makes it suitable for protecting today’s high-performance systems.

Conclusion

TVS-diodes, such as PESD12VS4UD,115 are highly efficient in providing surge protection for high-speed data lines. It also provides ultra-low capacitance bidirectional ultra-fast protection to the data lines while dissipating any excess energy resulting from the surge. The PESD12VS4UD,115 also comes in a very small package that is suitable for space constrained applications, making it an attractive choice for protecting sensitive devices against voltage spikes.