VE17M00300KHE

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The VE17M00300KHE is an electronic device commonly employed in the protection of vulnerable electronic circuits from voltage flashes, destructive surges, and AC power line transients. It falls within the category of TVS – Varistors, MOVs, and combines the function of several other devices and components to create one ultimate safety and protection package.

VE17M00300KHE boasts an ultra-high surge capability, with rated peak pulse power dissipation in the 1153W range and response time in the range of 1ns. This device is featured in an 8 contact, DIP 2.54mm package, with rated voltages of 17V and an insulation resistance of 1000MΩ. It also has a very much lesser ESD clamping voltage of 15V min and 8.4V max.

In regards to its application field, VE17M00300KHE mainly serves to protect against destructive transients created by inductive switching and electrostatic discharge. It also acts as a real-time protection device for the circuitry across a variety of applications such as automotive engine control, electronic equipment, computer peripherals, and also telecommunications.

VE17M00300KHE actually works on a fairly simple principle. It is an extremely fast response device designed to intercept the current pulse created by a excessive voltage spike and divert a portion of it away from the main circuits. This device is a consolidation of the fuse, resettable fuse, switch-mode power supply, varistor, and thyristor components, all of which are employed in different ways. The overall goal of VE17M00300KHE is to shield vulnerable areas of the circuit from destructive transients and to divert current pulses into the ground as soon as they appear.

The integrated element of the device is a metal oxide varistor (MOV). This non-linear resistor element sits between two existing leads and offers a flexible and adjustable level of resistance. When subjected to a voltage that is greater than its “hold” voltage ratings, current is then allowed to flow freely. This function essentially serves as an effective protective measure against power line transients.

A field-effect transistor (FET) is also employed in VE17M00300KHE which serves to subdue the back flow of current. When a surge of high voltage surges, the MOV simultaneously experiences a rapid voltage change, which in turn can cause further destruction to the circuit. But this FET acts quickly and restricts the current flow to within acceptable ranges. Therefore, it is quite effective in preventing the destruction of sensitive components of the circuit.

Finally, a thermal switch ensures safe operation of the device by limiting the temperature of the MOVs while in operation. This is especially important to prevent overheating of the MOVs, which can be quite destructive. When the temperature of the MOVs exceed safe levels, the thermal switch will automatically shut down and immediately cease operations.

In summary, the VE17M00300KHE is a very versatile and reliable device, mainly employed for its significant surge and voltage transient protection capabilities. It is made up of several key components such as MOV, FET, and thermal switch, all of which work together to provide reliable safety and protection for vulnerable areas of an electronic circuit.

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