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PoC Inductors

Power over Coax (PoC) is a transmission method that enables the simplification of wiring by superimposing the power supply onto signal cables.
By making use of suitable inductors from Murata’s extensive lineup, such as the LQW-F series developed for PoC applications such as ADAS camera interfaces, it is possible to create wide-band Bias-T circuits that employ fewer components.
We recommend PoC for applications such as automobiles, industrial equipment (FA), robots, and drones.
The “Bias-T Inductor Selection tool” on the Murata website can help you select the best components for your Bias-T circuits.

Product Search

Product Lineup

Clicking the product name in the chart will display the applicable part number list.

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Main image of Product Lineup MDH6, MDH7, MDH10 LQW32FT_8H LQH5BPH LQH44PH LQH3NPH LQH2HPH LQW43F LQW32FT_0H LQW21F LQW18F LQW18C LQW32FT_2H LQM21 LQM18 BLM18

  • *The LQW32FT_2H series allows a single inductor to replace the multiple components that were formerly necessary. This supports efforts to save space and reduce the overall size of a system, and to lower total DC resistance.

Bias-T circuit configuration example

When using the PoC (Power Over Coaxial) method, it is necessary to design Bias-T circuits to prevent high frequency signals from flowing into power lines that have low load impedance.
Our Bias-T Inductor Selection Tool suggests the optimal component combination using an algorithm based on knowledge gained through application research.

Figure of Bias-T circuit
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Recommended current value (Max.) Environment temperature Inductor (L1) Inductor (L2) Resistor (R2)
300mA 105°C LQW18CNR65J0H LQW32FT470M0H 1.5kΩ
300mA 105°C LQW32FT220M2H Not required Not required

Technical support

Here we examine various simulation models (S-parameters, SPICE models, circuit simulation models, and electromagnetic field and thermal analysis simulation models <CAE>), selection tools, samples, and FAQs.

Document download

Only the “my Murata” Inductor Site (registration required)

  • * These are listed on the “my Murata” website for members. You need to create a my Murata account, log into it and then apply to use the “Inductor Site” to view the data.

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