P4KE20ATR Circuit Protection

Voltage - Clamping (Max) @ Ipp:	27.7V
Supplier Device Package:	DO-41
Package / Case:	DO-204AL, DO-41, Axial
Mounting Type:	Through Hole
Operating Temperature:	-65°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	400W
Current - Peak Pulse (10/1000µs):	15A
Series:	--
Voltage - Breakdown (Min):	19V
Voltage - Reverse Standoff (Typ):	16.2V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVSs, otherwise known as transient voltage suppressors (TVSs) or transient protection diodes, are an important form of electronic component used in circuit protection. They are designed to protect sensitive electronic equipment against overvoltage transients, which can be caused by lightning, electrostatic discharge (ESD), or other sudden changes in voltage, as well as to prevent damage caused by power surges. The P4KE20ATR is a common type of TVS diode that is widely used for circuit protection, and it is important to understand the application field and working principle of this important device.The P4KE20ATR is a multicomponent TVS diode that combines the characteristics of several TVS technologies, including unclamped inductive load suppression (ULCSL), peak power rating (PPR), and peak clamping voltage (PCV). These components work together to provide superior surge protection and a fast response time to transient voltages. The PCV of the P4KE20ATR ranges from 12.0 V to 24.0 V, and it has a wide operating temperature range of -40°C to +150°C. This makes it ideal for a variety of applications, including high-speed data communication systems, automotive electronics, computers, telecommunication equipment, networking equipment, and many others.The P4KE20ATR has a very low parasitic inductance, which is important for providing optimal protection against overvoltage transients. This low parasitic inductance enables the device to discharge a high surge current quickly, and it also minimizes the effect of ringing in the device’s output signal. In addition, the device has very low internal capacitance, which ensures that it will not interfere with the load during normal operation.The P4KE20ATR can be used in a variety of applications, from telecom to automotive. It is often used to protect sensitive circuits from ESD, lightning, and voltage transients. The device can be quickly added to a circuit and can be used in both negative and positive polarity circuits. The P4KE20ATR can also be used as the main power input for automotive, telecom, and industrial systems.The working principle of the P4KE20ATR is fairly straightforward. When an overvoltage or transient voltage is applied to the device, the diode begins to conduct. The voltage across the diode is clamped to the peak clamping voltage of the device, and the current is limited to the rated peak power rating. This protects the load from voltage surges and prevents damage to the connected electronics.Overall, the P4KE20ATR is an effective and reliable solution for protecting sensitive electronics from overvoltage transients. This low-cost device has a wide operating temperature range, a fast response time, and a low parasitic inductance, making it a great choice for many different applications. Its combination of features make it an ideal choice for circuit protection, and it is an essential component for any system that relies on transient protection.

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