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NR inductors are SMD power inductors, which are magnetic glue inductors. Because they are made by fully automated machines, they are also called automated shielding inductors. They feature a small and thin magnetic shielding structure. There are several families of NR power inductors: NR, NRH, NRS and NRV. These inductors are available in a variety of heights and sizes
The NR series offers the highest DC resistance option among NR inductors with a 4.8 Ω available.
1.Current saturation ratings available: 0.22 A to 11 A
2.DC resistance (max): 0.0078 Ω to 4.8 Ω
3.Terminal structure: plating
Resin type: standard
1. High power processing capability
--Wire diameter and winding design: NR inductors generally use
thicker enameled wire winding, and the number of winding turns is
carefully designed to carry larger currents. The thicker wire
diameter reduces wire resistance and minimizes heat loss when
current passes through, making it suitable for circuits with high
power requirements, such as the CPU power supply circuit of a
computer motherboard, which can provide stable high current for the
CPU.
--Good heat dissipation performance: In order to adapt to the heat
generated by high-power operation, NR inductors pay attention to
heat dissipation in their structural design. Some NR inductors use
low magnetic resistance magnetic materials and open magnetic
circuit design, which not only helps improve the performance of the
inductor, but also makes it easier for heat to dissipate, ensuring
the stability of the inductor's performance under high-power
operation.
2. High inductance value
--Advantages of magnetic core materials: High permeability ferrite
magnetic core materials are usually selected, which can effectively
gather and enhance magnetic fields, enabling inductors to achieve
high inductance values in limited space. High inductance value is
crucial in circuit applications such as filtering and energy
storage. For example, in the output filtering circuit of a
switching power supply, a higher inductance value can make the
output current smoother and reduce voltage fluctuations.
3. Low DC resistance (DCR)
--Winding material and process: High purity copper material is used
as the winding material, combined with advanced winding technology,
greatly reducing the DC resistance of the inductor. Low DCR means
that the power loss generated when current passes through an
inductor is smaller, and less energy is converted into heat energy,
improving the efficiency of the inductor. At the same time, it also
helps to reduce the power consumption of the entire circuit and
extend the battery life of the device, which is significantly
effective in portable electronic devices.
4. Good frequency characteristics
--Broadband response: NR inductors can maintain relatively stable
inductance performance over a wide frequency range. Whether in the
low or high frequency range, it can better meet the circuit's
requirements for inductance. In high-frequency switching power
supply circuits, it can effectively suppress high-frequency noise,
ensuring the stability and reliability of the circuit under
high-frequency working conditions.
--High self resonant frequency: NR inductors have a high self
resonant frequency, which allows them to maintain their inductance
characteristics near the self resonant frequency without
experiencing a sharp decline in performance due to capacitive
effects. This feature broadens its application range in
high-frequency circuits, such as in RF circuits, where it can be
used for signal processing and filtering.
TYPE | A | B | C | D | E | F | G | H | Fig |
ZXY-NR8040 | 8.0±0.3 | 8.0±0.3 | 4.2 Max | 3.8±0.3 | 2.1±0.3 | 3.6 | 2.2 | 7.5 | 2 |