5KP64A-E3/51 Circuit Protection

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Technical advancements help improve efficiency, reliability, and speed in many electronic systems. TVS - Diodes, such as the 5KP64A-E3/51 help provide protection from voltage transients for most electronic systems and components. It is important to understand both its application field and working principle to make the most out of TVS - Diodes.

The 5KP64A-E3/51 belongs to the 5KP series of TVS - Diodes from Littelfuse. This hard-to-find series offers 600 Watts peak pulse power dissipation, and is recommended for automotive, military, and telecommunications applications. The 5KP series additionally offers features such as radiation tolerance, superior surge capability, and low power losses.

The 5KP64A-E3/51 has a maximum operating temperature of 150oC, and a storage temperature of -65oC to +150oC. The electrical specifications include a nominal stand-off voltage of 51Vdc and a peak working voltage of 67Vdc. It also has a working reverse leakage current of 500µA at 50V. The clamping voltage of the 5KP64A-E3/51 is 90V and it is available in USDZ SMD and MELF packages.

TVS - Diodes can stand the test of time and provide effective protection against power surges, making them some of the most dependable components in any system. The 5KP64A-E3/51 helps provide this needed protection by clamping the voltage when it exceeds a certain level, thus preventing further damage to both the system and the components. The circuit works as follows.

One of the main components of the 5KP64A-E3/51 is an electric diode or a voltage-dependent resistor. This diode or resistor detects a voltage that is higher than the normal operating voltage and clamps the voltage to a safe level. The diode or resistor is connected to a control capacitor, which is then connected to the circuit’s power source. The diode or resistor instantly responds to any sudden voltage spikes in the electrical circuit and clamps the voltage so that it doesn’t exceed the circuit’s safe operating voltage.

Another important part of the 5KP64A-E3/51 is the transient absorbing element, which works together with the diode or resistor to absorb the voltage spike. The transient absorbing element consists of a varistor connected in parallel to a metal oxide varistor (MOV). The varistor instantly boosts the voltage and the MOV absorbs the excess energy. Thus, the varistor and the MOV help protect the circuit from any sudden voltage surges.

The 5KP64A-E3/51 offers superior protection and reliability by providing a stable and reliable operating voltage range. This makes it highly suitable for high-reliability applications such as industrial, automotive, and telecommunications. By combining the diode or voltage-dependent resistor, control capacitor, and transient absorbing element, the 5KP64A-E3/51 helps protect the system and its components from any voltage surges. So, understanding the working principle of the 5KP64A-E3/51 can help you make the most out of using this type of TVS - Diodes.

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