5KP15E3/TR13

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TVS diodes are solid state devices used to protect sensitive electronic components from overvoltage transients, which is a sudden surge of electrical current or voltage. The 5KP15E3/TR13 is just one such diode and installation of devices such as this is vital in many industries such as data and communication systems, process control, medical systems, military systems and industrial instruments. This article considers the application field and working principle of the 5KP15E3/TR13 in more detail.

Application Field

The 5KP15E3/TR13 is a 15 watt unidirectional type of TVS diode aimed to protect components from overvoltage transients generated by lightning and other events. It has a stand-off voltage rating of 5 kilovolts, a peak power rating of 1500 watts in an 8/20us waveform and a Clamping voltage of 6.5 to 10 volts. This standard operating voltage of 6.5 volts makes it ideal for a variety of applications.

The 5KP15E3/TR13 is particularly used for protecting signal lines from overvoltage transients. In Data and Communication systems the 5KP15E3/TR13 is used to protect data/communication ports from the environmental electrical transients. It is also used to protect vulnerable components found in process control systems such as Programmable Logic Controllers (PLCs), circuit boards, power supplies and other electronic components. It also finds wide applications in medical systems for protecting medical equipment from electro-surgical interference, the military industry for securing military-grade systems with high-power transients and industrial instruments for protecting vulnerable components such as sensors and switches.

Working Principle

The 5KP15E3/TR13 is a silicon-based avalanche diode with an ESL (External Series Resistance) that acts as an impedance buffer. The 5KP15E3/TR13 is typically used as a two-terminal element with one end connected to ground, the other connected to the potential for overvoltage protection. In operation, the diode operates as an open switch when there is no transient activity but conducts at its rated current as soon as an overvoltage transient appears. Its voltage clamping performance is based on the Zener breakdown principle, and as it exceeds the specified Zener Voltage it turns on and sources current, thereby reducing the transient peak to a safe level.

The 5KP15E3/TR13 also features low capacitance, fast response, low leakage current and reverse time as short as 60 uS. The ESL impedance buffer also ensures that the diode quickly passes through a surge and shuts off automatically when the surge is over. In this way, the 5KP15E3/TR13 manages to quickly and accurately provide a safe overvoltage clamping protection.

Conclusion

The 5KP15E3/TR13 TVS diode is a standard-voltage, unidirectional device offering an efficient protection against overvoltage transients. Its wide application range, suitable operating voltage, and fast response time makes it suitable for protecting data/communication ports, circuit boards, power supplies and other electronic components from overvoltage transients. Its ability to source current under a transient event provides reliable and accurate protection for many electronic components.

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