CB3JBR390

Through Hole Resistors are essential components used in a wide range of electronic circuits. They are mainly used to either facilitate signal routing or reduce noise in a circuit. The CB3JBR390 is a particular type of through hole resistor that is designed for very high currents and very low power losses. It is also very stable and robust, making it suitable for use in harsh environments.

Application Field

The CB3JBR390 is mainly used in power conversion applications like DC to DC converters, inverters, and wide range of automotive electronics. It is specifically designed for use in switching power supplies due to its ability to handle high power with minimal losses. The CB3JBR390 is also suitable for motor drives, motor control, and inverter applications where low switching losses are important.

Working Principle

The CB3JBR390 is a three-terminal device consisting of one central element and two outer electrodes. These electrodes are connected to a control circuit and are used to stable control current flow. The central element is composed of a ferritic nickel-iron alloy which has a resistivity that can be adjusted by adding various amounts of chromium and silicon. The resistivity of the alloy is controlled by the various elements in the alloy and is not affected by temperature or operating voltage. This makes the CB3JBR390 an ideal choice for applications that require accurate and stable current regulation.

The CB3JBR390 works by controlling the driving voltage to the gate of a transistor. In general, higher voltage applied to the gate of a transistor increases the current flow. With the CB3JBR390, however, a fixed voltage can be applied to the gate. This fixed voltage shifts the transistor\'s operating point along the current-voltage (I-V) curve.

The amount of voltage shift depends on the amount of current flowing through the CB3JBR390 resistor. To increase current, the CB3JBR390 resistor can be increased in resistance, reducing the amount of current flowing through the transistor. Conversely, to reduce current the resistor can be lowered in resistance, allowing more current to flow. This allows the transistor to operate with very high efficiency and very low power losses.

In summary, the CB3JBR390 is a three-terminal device that is used to regulate current flow in applications where low power losses are important. It is mainly used in power conversion applications like DC to DC converters and inverters. The CB3JBR390 also offers excellent temperature and voltage stability which makes it suitable for use in harsh or extreme environments.