5KP70E3/TR13 Circuit Protection

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TVS – Diodes

TVS (transient voltage suppressor) diodes are electrical protection components used to protect systems from voltage transients, also called surge or spike protection. TVS diodes, also known as surge suppressors or transient suppressors, are an important component in many electronic systems, as they can protect the device from electrostatic discharge, power transients, and over-voltage conditions. When these conditions occur, the TVS diodes effectively ‘absorb’ the over-voltage, thereby preventing any significant transients from damaging the electronics within the system. The 5KP70E3/TR13 is a TVS diode from Littelfuse, an American company and a global leader in circuit protection.

Application Field of 5KP70E3/TR13

The 5KP70E3/TR13 diode is a uni-directional, very fast, low-capacitance TVS diode. It is designed for applications that require a surge current rating up to 70A (8/20μs), and is widely used in a variety of applications, including industrial and consumer electronics, automotive, alternative energy equipment, and telecom/datacom systems. The 5KP70E3/TR13 diode, with its fast response speed, can provide a high level of protection for such systems and is often used in applications that deal with demanding surges such as lightning strikes. The diode also has a high peak power rating (530W). This allows for exceptional system noise immunity and interference suppression.

Working Principle of 5KP70E3/TR13

The 5KP70E3/TR13 TVS diode works by clamping the voltage when an over-voltage transient occurs. This is known as ‘crowbar’ action. The voltage is clamped by the diode’s properties such as its breakdown voltage and peak pulse current rating, ensuring that the system is protected from damaging transients. The diode is also designed to be very fast-acting, responding quickly to voltage transients. This ensures that the system is protected with minimal amount of noise or interference caused by the transient.

The 5KP70E3/TR13 TVS diode is a uni-directional device, meaning that it only conducts in one direction. This prevents any unwanted current from entering the system, further protecting the system from damage. The diode is also designed to self-protect, meaning that it does not require an external energy source like a fuse or a circuit breaker in order to protect the system. It can protect the system without relying on external components, allowing the system to be more reliable and efficient.

TVS diodes are usually constructed from a combination of common chips such as Zener diodes, avalanche diodes, PN junction diodes, and Schottky diodes. These chips are combined in order to provide the reliable and fast protection that TVS diodes are known for. The exact configuration and combination of chips will depend on the application and type of diode. The 5KP70E3/TR13 TVS diode consists of 3 chips: a Zener diode, a PN junction diode, and an avalanche diode.

Overall, the 5KP70E3/TR13 is an ideal protection diode for a variety of industrial, consumer, automotive, alternative energy, and telecom/datacom applications. It provides a reliable and high-speed method of protecting systems from damaging voltage transients, without relying on any external components. Its fast-acting response time ensures that the system is protected with minimal interference or noise, making it an ideal choice for a variety of applications.

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