CN649 TR

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CN649 Transient Voltage Suppressor (TVS) is a solid-state current-limiting device designed to protect sensitive electronic components, circuits and systems from catastrophic damage caused by an electrical surge. The device offers high clamping voltage, low forward voltage drop, low leakage current and fast switching speed. The application field and working principle of the CN649 Transient Voltage Suppressor (TVS) will be discussed in this article.

Application Field

CN649 TVSs are widely used in AC/DC power systems, DC/DC systems, telecommunications, computers, automobiles, medical equipment, audio/video systems, instrumentation and general industrial equipment. In addition, it is suitable for a variety of high-speed digital and analog signals. It can be used in a wide range of applications where overvoltage suppression, EMI/RFI noise filtering, and EMC performance enhancements are desired.

Working Principle

The operation of an CN649 Transient Voltage Suppressor (TVS) is based on the principle that the voltage drop across it increases when the input voltage exceeds its clamping voltage (V(BR)). When the input voltage increases beyond the device’s clamping voltage, a current starts flowing through the device and is limited to the device evaluation. The current is limited by the breakdown voltage of the device and the impedance of the device. The transient current is then dissipated as heat. The device can absorb a certain amount of energy before it fails and returned to its non-conductive state.

The CN649 Transient Voltage Suppressor (TVS) can dissipate up to 30 watts of power in order to protect sensitive electronic components from high voltages. The device features an on-state voltage drop of less than 1V and a low leakage current. The TVS is also rated for high surge current handling capacity, with a typical peak current rating of 500mA.

In addition, the TVS is also designed with a response time of less than 5ns, making it ideal for high speed digital and analog applications. The device also features a low thermal resistance and a relatively low operating temperature. It is also RoHS compliant and has a wide operating temperature range of -55°C to +125°C.

The CN649 Transient Voltage Suppressor (TVS) is a solid-State current-limiting device designed to protect sensitive electronic components, circuits and systems from catastrophic damage caused by an electrical surge. Its application field and working principle have been discussed in this article.

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