3A Shielded Type SMT Chip Miniaturized Power Inductors Wire Wound
Ferrite Core
1.Product Description
The 3A Shielded Type Chip Miniaturized Power Inductor is a high -
performance electronic component designed to meet the demands of
modern, space - constrained electronic devices. With a maximum
current - handling capacity of 3A, it can efficiently handle the
power requirements of various power - management circuits. Its
shielded structure is a key feature. The shielding material
effectively reduces electromagnetic interference (EMI), both
preventing the inductor from being affected by external
electromagnetic fields and minimizing the interference it emits to
other components on the circuit board. This makes it particularly
suitable for use in high - density circuit designs where components
are closely packed together.
The chip - type design allows for easy surface - mount technology
(SMT) assembly, which simplifies the manufacturing process and
improves the overall reliability of the circuit. Its miniaturized
form factor is another advantage. In today's era of miniaturized
electronics, such as in smartphones, tablets, and wearable devices,
space on the printed circuit board (PCB) is at a premium. This
inductor's compact size enables it to fit into tight spaces, making
it an ideal choice for power - related applications in these
devices. Whether it's used in voltage - regulation circuits to
smooth out power fluctuations or in power - conversion modules to
store and release energy, the 3A Shielded Type Chip Miniaturized
Power Inductor offers a reliable and space - saving solution for
power management in miniaturized electronic devices.
2.Features
1. High current-carrying capacity: the maximum current carrying
capacity is 3A, which can provide stable power supply for circuits
with high power demand and meet the power demand of electronic
components with high current demand, such as high-performance
processors, high-power RF modules, etc., and ensure that the
equipment can work stably even under high loads.
2. Excellent shielding performance: the use of special shielding
structure and materials, can effectively block the internal
magnetic field generated by the leakage, reduce the electromagnetic
interference to the surrounding electronic components, but also
against external electromagnetic interference on their own
performance, to enhance the stability of the work in the complex
electromagnetic environment. In the dense circuit board layout, it
can avoid signal distortion or circuit failure caused by
electromagnetic interference.
3. Miniaturized design: Continuing the compact shape of SMD
miniaturized power inductors, it is suitable for layout on circuit
boards with limited space. Whether it is thin and light notebook
computers or compact IoT devices, it can be easily adapted to
provide assistance in realizing miniaturization and thinness of
equipment.
4. High precision and stability: high inductance precision, in
different operating temperatures, voltage conditions, can maintain
stable inductance performance, to ensure the consistency of circuit
parameters, for the inductance value of the circuit of the
stringent requirements of the accuracy of the circuit to provide a
reliable guarantee, to reduce the inductance fluctuations brought
about by the circuit performance deviation.
5. Low loss characteristics: with low DC resistance and core loss,
in the process of transmitting current, energy loss is small, low
degree of heating, not only to improve the efficiency of energy
utilization, but also extend the service life of the equipment,
reduce the probability of equipment failure caused by overheating.
6. Convenient for SMT processing: SMD package form, fully adapted
to the surface mount technology (SMT), can be quickly and
accurately mounted on the circuit board with the help of automated
equipment to improve production efficiency, ensure consistency of
production quality and reduce production costs.
Structure and composition:
Chip inductors are a commonly used electronic component. When the
current passes through the wire, a certain electromagnetic field
will be generated around the wire, and the wire in this
electromagnetic field will generate an induced electromotive
force-self-induced electromotive force, which we call
electromagnetic induction. In order to enhance electromagnetic
induction, people often wind the insulated wire into a coil with a
certain number of turns.
Shape and dimensions:
| TYPE | DIMENSIONS | INDUCTANCE |
| Unit | A1(±0.3) | A2 (± 0.3) | B (MAX) |
| SMRH73 | mm | 7.3 | 7.3 | 3.8 | 10μH~1000μ H |
| inch | 0.2874 | 0.2874 | 0.1496 |
| SMRH74 | mm | 7.3 | 7.3 | 4.5 | 104μ H1000μ H |
| inch | 0.2874 | 0.2874 | 0.1772 |
| SMRH124 | mm | 12 | 12 | 5 | 3.9 μ H~330 μ H |
| inch | 0.4724 | 0.4724 | 0.1969 |
| SMRH125 | mm | 12 | 12 | 6.2 | 1.3μH~1000 μ H |
| inch | 0.4724 | 0.4724 | 0.2441 |
| SMRH127 | mm | 12 | 12 | 8 | 1.2μH~1000μ H |
| inch | 0.4724 | 0.4724 | 0.315 |
| SMRH103R | mm | 10 | 10 | 3.1 | 0.8μH~150 μ H |
| inch | 0.3937 | 0.3937 | 0.122 |
| SMRH104R | mm | 10 | 10+0.5/-0.3 | 4.2 | 1.5 μH~330 μ H |
| inch | 0.3937 | 0.3937 | 0.1654 |
| SMRH105R | mm | 10 | 10+0.5/-0.3 | 5.1 | 1.5 μH~330 μ H |
| inch | 0.3937 | 0.3937 | 0.2008 |
Specification:
| PART NO. | L(μ H)
INDUCTANCE | L TEST
FREQUENCY | DCR(Q)
MAX | IDC(A)
MAX |
| SMRH125-1R3□ | 1.3 | 7.96MHz | 0.012 | 8 |
| SMRH125-2R1□ | 2.1 | 7.96MHz | 0.014 | 7 |
| SMRH125-3R1□ | 3.1 | 7.96MHz | 0.017 | 6 |
| SMRH125-4R4□ | 4.4 | 7.96MHz | 0.02 | 5 |
| SMRH125-5R8□ | 5.8 | 7.96MHz | 0.021 | 4.4 |
| SMRH125-7R5□ | 7.5 | 7.96MHz | 0.024 | 4.2 |
| SMRH125-100□ | 10 | 1kHz | 0.025 | 4 |
| SMRH125-120□ | 12 | 1kHz | 0.027 | 3.5 |
| SMRH125-150□ | 15 | 1kHz | 0.03 | 3.3 |
| SMRH125-180□ | 18 | 1kHz | 0.034 | 3 |
| SMRH125-220□ | 22 | 1kHz | 0.036 | 2.8 |
| SMRH125-270□ | 27 | 1kHz | 0.051 | 2.3 |
| SMRH125-330□ | 33 | 1kHz | 0.057 | 2.1 |
| SMRH125-390□ | 39 | 1kHz | 0.068 | 2 |
| SMRH125-470□ | 47 | 1kHz | 0.075 | 1.8 |
| SMRH125-560□ | 56 | 1kHz | 0.11 | 1.7 |
| SMRH125-680□ | 68 | 1kHz | 0.12 | 1.5 |
| SMRH125-820□ | 82 | 1kHz | 0.14 | 1.4 |
| SMRH125-101□ | 100 | 1kHz | 0.16 | 1.3 |
| SMRH125-121□ | 120 | 1kHz | 0.17 | 1.1 |
| SMRH125-151□ | 150 | 1kHz | 0.23 | 1 |
| SMRH125-181□ | 180 | 1kHz | 0.29 | 0.9 |
| SMRH125-221□ | 220 | 1kHz | 0.4 | 0.8 |
| SMRH125-271□ | 270 | 1kHz | 0.46 | 0.75 |
| SMRH125-331□ | 330 | 1kHz | 0.51 | 0.68 |
| SMRH125-391□ | 390 | 1kHz | 0.69 | 0.65 |
| SMRH125-471□ | 470 | 1kHz | 0.77 | 0.58 |
| SMRH125-561□ | 560 | 1kHz | 0.86 | 0.54 |
| SMRH125-681□ | 680 | 1kHz | 1.2 | 0.48 |
| SMRH125-821□ | 820 | 1kHz | 1.34 | 0.43 |
| SMRH125-102□ | 1000 | 1kHz | 1.53 | 0.4 |
