30KP70CA-TP

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Introduction to TVS - Diodes

A Transient Voltage Suppressor (TVS) Diode is an electronic component designed to protect electronics and electrical components from high-voltage transients such as lightning strikes and ESD (electrostatic discharge). When an instantaneous voltage surge exceeds the voltage rating of a component, the TVS diode rapidly switches into a low resistance state and “clamps” the transient voltage, thus limiting the peak voltage and current that can drive through that component.

30KP70CA-TP is a type of TVS diode manufactured by STMicroelectronics, part of the SELTEC series of TVS devices specially designed for high-speed data lines. This article will discuss the application fields and working principles of the 30KP70CA-TP TVS diode.

Application Field of the 30KP70CA-TP TVS Diode

The 30KP70CA-TP has a wide range of applications that take advantage of its high power and protection capabilities, particularly in automotive and telecommunications infrastructure. It is designed to protect high-speed digital lines such as DisplayPort and HDMI from ESD damage and to limit EMI in multimedia broadcast systems.

In the automotive sector, the 30KP70CA-TP can be used for anti-theft systems, gateway modules, camera systems, infotainment systems, and advanced driverassistance systems. All these systems need protection from ESD and EMI, and the 30KP70CA-TP can offer robust protection from such events.

In the telecommunications industry, the 30KP70CA-TP is well suited to protect cellular base stations and wireless communication systems, such as Bluetooth, Wi-Fi, and 5G NR. It can also be used to protect CAT-5e cabling in an office environment.

Working Principle of the 30KP70CA-TP TVS Diode

The 30KP70CA-TP TVS diode is a breakdown device, with a breakdown voltage of 28V. This effectively creates a voltage clamp that limits the peak voltage and current that can drive through the circuit. The breakdown voltage is temperature dependent, so the 30KP70CA-TP is designed to maintain a constant breakdown voltage over a wide temperature range of -40°C to +125°C.

The 30KP70CA-TP also has a fast response time of 35ps, allowing it to quickly detect and react to transient voltage events. This effectively limits the energy of overvoltage events, reducing the potential for damage to the circuit.

Finally, the 30KP70CA-TP has a high power rating, with an impressive peak pulse power of 390W at 10/1000μs, and a high transient surge current of 10A.

Conclusion

The 30KP70CA-TP TVS diode is a versatile and robust protection device, designed to provide high levels of protection for a wide variety of electronics and electrical components. Its wide range of applications, from automotive to telecommunications, are a testament to its strong protective capability. Its breakdown voltage, fast response time, and high power rating make it an ideal choice for high-speed data lines, cellular base stations, and other applications requiring peak voltage and surge current protection.

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