P4KE47AHE3/73 Circuit Protection

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TVS Diodes, or Transient Voltage Suppression Diodes, are high-speed protective devices designed to protect electronics from overvoltage transients and surges that can cause electrical equipment damage. P4KE47AHE3/73 is one TVS Diode offered by NXP, a leading semiconductor and chip designer. It is specially designed to protect automobile electronics from overvoltage transients such as electrostatic discharge (ESD) and other transient events.

In terms of application, P4KE47AHE3/73 is designed to protect automotive electronic control units (ECUs), including engine and transmission controllers, fuel systems, immobilizers, air conditioners, and other controllers that are susceptible to ESD, voltage transients, and overvoltages. Its features also ensure reliable operation of automotive ECUs. It has been proven to be a reliable solution for many automotive applications, providing the highest level of protection and long-term reliability.

As for working principle, P4KE47AHE3/73 TVS Diode is capable of handling peak pulse power of 600W for 10 and 1000 microseconds. During these transient events, it exhibits excellent suppression of high-energy critical voltages as well as fast response time. Additionally, it has a low breakdown voltage, normally between 33V and 360V. When the excess voltage above a certain threshold is detected, it conducts and diverts the transient energy through its body to ground, preventing the current from reaching the sensitive device.

The TVS Diode also demonstrates low forward voltage drop and low leakage current, both under operation as well as during reverse voltage conditions. It offers tight voltage characteristics and an improved dynamic range with an effective capacitance of only 16pF, reducing snubbing requirements and improving reliability. The P4KE47AHE3/73 also has low clamping voltage, making it ideal to protect high voltage circuits.

In addition, it is RoHS compliant and is AEC-Q101 qualified. The package used for its production is qualified for use in a temperature range of -55°C to +125°C, making it one of the best temperature options for automotive applications. The P4KE47AHE3/73 device also exhibits excellent surge current capabilities with a minimum breakdown energy of 400W.

Overall, the P4KE47AHE3/73 is an excellent surge-protected TVS Diode that offers maximum protection against ESD and voltage transients in automotive applications. Its superior surge current capabilities and higher performance make it a reliable and cost-effective option for automotive ECUs. It offers reliable protection performance, ensuring long-term reliability of the automotive electronic systems.

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