Overview
Pulse Electronics’ Shielded Toroid Series RosI/Ros2 is a component dedicated to surface mount technology (SMT), featuring power inductors in two package sizes with a maximum height of 3.2mm and 5.3mm. The smaller package has a footprint of 8.1mm x 5.3mm, and the larger one is 14.0mm x 10.2mm. These inductors can handle a current rating of up to 5A and offer an inductance range from 0.51µH to 357µH. The datasheet details electrical specifications at a standard operating temperature of 25°C, extending to a range from -40°C to +130°C.
Electrical Specifications
The series includes the RosI and Ros2 lines, with each of them having multiple configurations identifiable by their unique part numbers. Characteristics such as DC Resistance (DCR) both typical and maximum values, inductance tolerance, energy storage factor (ET), core loss, and rated current (Irated) are tabulated. For instance, part numbers starting with P043 reflect smaller inductors, such as P0430 which has a minimum inductance of 0.51µH, while those beginning with P046, like P0468, indicate larger inductors, with up to 357µH.
Mechanical Specifications
Alongside electrical characteristics, the datasheet provides mechanical details and the suggested pad layout for mounting. Dimensions are given in both inches and millimeters with respective tolerances. Moreover, inductors within this series weigh between 0.29 grams for RosI and 1.1 grams for Ros2, with packaging available in tape and reel form to simplify the manufacturing process. Tape & reel dimensions and user feed directions are clearly illustrated to aid in automated assembly.
Additional Information
Pulse Electronics includes notes on temperature rise, attributing it to typically 55°C in buck or boost circuits with rated current. They also give formulas for calculating copper losses and core losses, emphasizing the significance of these factors in estimating temperature rise in applications. Contact information for Pulse locations across the globe is provided for customer support and service.
Performance and Warranty
The performance warranty of the power inductors is limited to the parameters specified within the datasheet. Data can be subject to change, with the recommendation to visit Pulse Electronics’ website for the latest information. The copyright notice and document tracking information, tagged as P617.A and dated March 2006, conclude the two-page datasheet extract.
References:
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