P6KE11A-TP Circuit Protection

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TVS diodes are present in a wide range of electronic applications, and P6KE11A-TP is one such device, which is available in a variety of forms. The P6KE11A-TP Transient Voltage Suppressor (TVS) is a two-terminal bidirectional device that is designed to protect sensitive electronic components from ESD, induction, lightning, and voltage transients.

This surge protection device is constructed using a Zener diode with a voltage rating of 11V (breakdown voltage is 12V). It is used to offer lower clamping voltages than standard Zener diodes and provides superior surge capability for sensitive electronic components. P6KE11A-TP also features low stand-off voltage and fast response time to protect against voltage transients.

The working principle of this device involves an NPN transistor with two Zener structures. The NPN transistor is connected in series with an LED and a Zener diode, while the other Zener is connected in series with two capacitors, which act as a noise filter, allowing only pulses with a frequency range between 10MHz to 20MHz to pass through.

When an ESD event or voltage transient occurs, the upper and lower Zener diodes will activate and form a clamp to limit the voltage waveform. The capacitors filter out the frequency range between 10MHz to 20MHz, while the LED acts as an open-loop resistor in case of an intense transient. When a surge occurs, the LED and the Zener diode will absorb the transient energy, with the Zener diode ultimately limiting the voltage.

The P6KE11A-TP device is ideal for a variety of applications such as automotive, computer and peripheral interface, communications application, and EMI filtering board level designs. It can be used for data port protection, which involves protecting ports from damaging levels of electrostatic discharge, overvoltage, and overclocks. It can also be used in battery charging protection, which involves limiting the voltage of the battery and helping to control its charging rate.

This device is also used in temperature sensing. It is designed to sense hot temperature in certain applications. It is connected in series with the NTC thermistor and the temperature level range can be adjusted using a potentiometer. When the sensed temperature is exceeded, the output voltage will fall below the trip level and the device will turn off. These devices are available in the form of surface mount packages.

The P6KE11A-TP is a very versatile and durable television suppression device that is designed to protect sensitive electronic equipment from ESD, induction, transients, and lightning. It has a relatively low stand-off voltage and fast response time, which makes it an ideal choice for applications requiring efficient surge protection. It is available in a variety of forms and is suitable for a range of applications, including data port protection, battery charging protection, and temperature sensing.

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