IN Brief:
- Nine new values extend the DFE2MCPH_JL range from 0.10µH through 4.7µH alongside existing parts.
- The 2.0 × 1.6mm devices provide 40V withstand capability and comply with AEC-Q200.
- Mass production has begun for applications including ADAS and in-vehicle infotainment power circuits.
Murata Manufacturing has added nine inductance values to its DFE2MCPH_JL automotive metal power-inductor series, expanding the 2.0 x 1.6mm range for power circuits used in ADAS, in-vehicle infotainment, and other vehicle electronics. Mass production has already begun, giving designers a broader selection of electrical characteristics within the same AEC-Q200-qualified package family.
The additions cover 0.10µH, 0.15µH, 0.22µH, 0.68µH, 1.0µH, 1.5µH, 2.2µH, 3.3µH, and 4.7µH. Existing 0.33µH and 0.47µH devices remain in the series, filling the gap between the new low- and mid-range values. Every part retains the 0806-inch, or 2016 metric, footprint and is specified for 40V withstand capability.
The electrical trade-offs become increasingly visible towards the upper end of the range. Murata specifies maximum DC resistance of 10mΩ for the 0.10µH part, rising progressively to 360mΩ at 4.7µH, while rated current falls as inductance increases. The published limits allow engineers to choose the magnetic component against converter ripple, load current, switching frequency, and acceptable temperature rise rather than treating package size as the principal selection criterion.
That wider selection is useful as ADAS and infotainment hardware places a growing number of power rails around processors, sensors, displays, memory, and communications devices. A compact camera or radar module may require several relatively modest point-of-load converters, while a domain controller can impose substantially larger transient currents. Reusing one package family across those circuits can simplify PCB layout, qualification, and component-library management even where the required inductance and current rating differ.
The 40V withstand rating also gives the series headroom for automotive supply environments where upstream transients are more severe than those encountered in typical consumer hardware. It does not replace transient suppression or converter input protection, but it prevents the magnetic component from introducing a lower voltage limit into a power stage designed around automotive conditions. AEC-Q200 compliance adds the environmental qualification expected for passive components intended for vehicle use.
Package dimensions remain a hard constraint because inductors are often among the larger components in compact switching regulators. Raising inductance inside a fixed volume can increase winding resistance or reduce current capability, while pushing current density higher increases thermal stress. Murata’s extension therefore provides more design points within the same footprint rather than presenting one value as an optimum solution for every rail.
The current ratings illustrate that distinction. Murata lists a typical inductance-change current of 13.9A for the 0.10µH device and 2.0A for the 4.7µH version, while typical current based on temperature rise falls from 9.4A to 1.2A across the same two parts. Designers still have to account for their own ambient temperature, PCB copper, airflow, switching losses, and converter topology before translating those component ratings into a finished power-stage limit.
Vehicle electronics architectures are also becoming more centralised, placing greater compute and power-conversion density into fewer control units. Higher-performance processors increase both average consumption and transient current, while mechanical packaging continues to restrict board area available for magnetics and cooling. Selection of apparently simple passive components consequently has a direct bearing on regulator efficiency, temperature rise, and the amount of copper required around the converter.
The nine additions do not introduce a new magnetic-material platform; they broaden an existing production family around electrical values designers routinely have to trade against one another. With devices already in mass production, the expansion moves directly into component selection and qualification. The practical benefit is greater freedom to tune an automotive power stage without changing the package family simply because the required inductance falls between the values previously offered.
