STIEC45-30AS Circuit Protection

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Surge protective devices (SPDs) are essential components in many electronic systems such as those found in utilities, industrial, and telecommunications systems. Of several types, one of the most popular is the silicon-based transient voltage suppressor (TVS) diode. The STIEC45-30AS is a unidirectional TVS diode of the silicon avalanche design. It is a reliable, economical and effective solution to controlling transient voltages.

Working Principle

TVS diodes work by effectively controlling excess voltages by providing a short circuit when voltages exceed their breakdown voltage. They are designed to clamp voltages to a predetermined safe level and to shunt quickly and safely any transient voltages that may occur. STIEC45-30AS uses an avalanche breakdown mechanism to achieve a fast-switching device that can provide excellent overvoltage protection.

The STIEC45-30AS device has a Breakdown Voltage rating of 45V, meaning it can switch off before breakdown and clamp the surge voltage at about 43V. It also has a peak pulse current of 30A, meaning that it can dissipate up to 30A before it reaches its breakdown voltage. This high current capability makes it ideal for applications where time-variable, high-energy loads can cause power surges.

Application Field

The STIEC45-30AS can be used in a range of applications where large-amplitude high-energy load changes are expected. These include computers, data networks, telecommunication systems, power converters and electrostatic discharge protection. It can also be used as part of a transient voltage surge suppressor (TVSS) system for industrial, commercial and residential applications.

Their fast-switching performance and low-clamp behavior make them ideal for protecting against electro-static discharge (ESD). This makes them particularly suitable for applications where fault clearing operations are required in a very short period of time. They can also be used to protect electronic circuits from common-mode caused by lightning or switching surges.

The STIEC45-30AS also has low capacitance and is therefore suitable for use in high-frequency applications. This makes it suitable for protecting data lines and other sensitive electronic components in a wide range of applications.

In addition to overvoltage protection, the STIEC45-30AS can also be used to protect against thermal overload. Its thermal stability makes it suitable for use in temperature-dependent applications such as automotive and industrial control systems.

Conclusion

The STIEC45-30AS is an excellent choice for a range of applications requiring protection from electrical transients. It is a fast-switching, low-clamp device that can provide reliable performance in a variety of applications. Its high-peak pulse current rating makes it suitable for use in high-energy load changes, while its low-capacitance makes it suitable for high-frequency applications. It can also provide excellent protection for against electro-static discharge and thermal overload. For these reasons, the STIEC45-30AS is a great option for TVS diode applications.

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