WCB7JB620R

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Through Hole Resistors, while essential components of various electronic systems, are often overlooked as an afterthought. The WCB7JB620R is an example of such a resistor, and is useful in many applications thanks to its wide range of operating characteristics. In this article, we will discuss the application fields and working principles of the WCB7JB620R in more detail.The WCB7JB620R is a through hole non-inductive resistor, which means that it does not require an external inductive source for operation. It is typically used in applications where high current, high voltage, or both are required. Examples of such applications include power supply regulation, signal conditioning, overvoltage and overcurrent protection, and voltage- and current-controlled oscillators.The WCB7JB620R is a precision resistor and is designed to achieve remarkable operating accuracy. It features 1% tolerance and 0.1 ppm thermal stability. The device is also rated for operating temperatures ranging from -55°C to +155°C, making it suitable for a wide range of applications that require high performance over a wide temperature range.The WCB7JB620R is constructed with a zinc-coated bondable shell and a sophisticated metallization system. Its metallization system features plated contacts and layers of highly conductive metal oxide to reduce the contact resistance and ensure low noise performance. The resistor is also internalized with a protective film to provide electrical insulation and reduce the effects of moisture, dust, and other environmental contaminants.The WCB7JB620R is engineered to provide extremely low thermal resistance, allowing it to maintain a steady temperature and keep a constant resistance. This means that the resistor can handle high currents without any significant losses and can be used in applications where long run operation is required.The working principle of the WCB7JB620R is based on the principle of Ohm’s Law. It is composed of an element which is made up of a high resistance material, a ferrite bead, and a selenium oxide layer. The high resistance material, also known as a “semiconductor”, is made up of two surface layers, one of which is a metal oxide layer and the other a semi-conductive layer.The selenium oxide layer, also known as the insulating layer, is sandwiched between the two layers and helps provide insulation against environmental impacts including moisture, dust, etc. When applied with a voltage, the element will allow current to flow due to the resistance of the metal oxide layer. The electrical current will then be diverted through the ferrite bead, which acts as an inductor, hence the name “non-inductive resistor”. The ferrite bead also helps to reduce unwanted noise and improve the accuracy of the device.In conclusion, the WCB7JB620R is a highly-reliable and accurate through hole non-inductive resistor. It is able to handle high currents and voltages, making it suitable for various applications including power supply regulation, voltage- and current-controlled oscillators, and overvoltage and overcurrent protection. Thanks to its advanced metallized construction, it is able to achieve remarkable precision and excellent thermal stability. Furthermore, its unique working principle and internal insulation make it highly resistant to environmental impacts. For these reasons, the WCB7JB620R is an ideal component for various electronic systems.

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