DR74-681-R Inductors, Coils, Chokes

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Fixed inductors are passive components that are useful for storing energy in an electromagnetic field. The DR74-681-R is a type of fixed inductor used to store energy in an electromagnetic field at a particular frequency. The DR74-681-R has an operating temperature range of -55°C to 85°C and a temperature coefficient (TC) of +100 ppm/°C (+105 ppm/-55°C).

The DR74-681-R could be used in various applications, such as power supplies, RF amplifiers, and signal conditioning circuits. It is designed to optimize the performance of these applications by providing a low profile, high inductance, and low DCR with low EMI/RFI emissions.

The DR74-681-R has a Ferrite-geometry construction, which helps to reduce the size and weight of the inductor. The inductance of the DR74-681-R is between 68nH to 680nH depending on the value selected. The DCR is generally between 0.87-3.5Ω and the Q value is between 20-50. The DR74-681-R is rated for up to 200mA of current. The DR74-681-R also has a low profile of only 2.5mm, making it ideal for applications where space is restricted.

The working principle of the DR74-681-R is based on the principle of inductance. Inductance is the ability of a wire coil to store energy in the form of an electromagnetic field when electric current passes through it. This coil has two ends, a positive and a negative, with the positively charged end inducing a magnetic field around it. When the current flows through the inductor, it creates a magnetic field that induces a voltage in the opposite direction. This voltage opposes the applied current, creating an inductive reactance that helps to limit the current flow.

The DR74-681-R is a versatile component that is useful in various applications and can help optimize performance. It has a low profile, high inductance, low DCR, and low EMI/RFI emissions. It can be used in power supplies, RF amplifiers, and signal conditioning circuits. The DR74-681-R is an ideal choice for applications where space is limited.

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