Overview
The HCMO703 Series datasheet details high-performance inductors from COILTRONICS, a division of COOPER Bussmann, specifically designed for various applications such as voltage regulators, multi-phase regulators, computer hardware power supplies, base station equipment, and several other electronic devices. These components are of particular importance in managing power within compact and high-function electronics where high current carrying capacity and low electromagnetic interference (EMI) are crucial.
Applications and Environmental Suitability
The inductors are suitable for a broad range of applications, such as Voltage Regulator Modules (VRMs), Point-of-Load modules, Desktop and Server VRMs, EVRDs, Base Station Equipment, Notebook Regulators, Battery Power Systems, Graphics Cards, and Data Networking and Storage Systems. The environmental data suggests that they can be stored and operate effectively in temperatures ranging from -55°C to +125°C, including during the solder reflow process which is J-STD-020D compliant.
Physical and Electrical Characteristics
The HCMO703 Series inductors feature a small surface mount package (7.4 x 7.0 x 3.0 mm) that uses powder iron core material, which is magnetically shielded to minimize EMI. These inductors can operate at a maximum total temperature of 125°C. They support a wide inductance range (from 0.15µH to 10.0µH) and a current range (from 3.2 to 52 Amps), with the frequency range reaching up to 5 MHz. Importantly, these components are RoHS compliant and Halogen free, indicating adherence to certain environmental and safety standards.
Performance Parameters and Part Numbering
The datasheet presents detailed product specifications that include parameters such as Irms (DC current for an approximate temperature rise of 40°C), Isat (peak current for approximately 20% rolloff at +25°C), and DCR (Direct Current Resistance) at 20°C. It explains how various factors like PCB layout, trace thickness and width, airflow, and proximity of other heat-generating components may influence the temperature rise of the inductors. Users are advised to ensure that the temperature of the part does not exceed 125°C under worst-case operating conditions. The parts are also accompanied by a K-factor, which is used to determine the B-pp for core loss.
Each part number within the series follows a specific naming convention that encapsulates the product code, size, and inductance value, along with a suffix indicating RoHS compliance. An example part number is “HCMO703-R15-R,” which designates certain specifications of the component within this series.
Packaging
The inductors are packaged in tape and reel packaging format, facilitating automated assembly processes. Each reel carries 1,500 parts and is designed with a 13-inch diameter, optimizing efficiency for mass production.
Manual:
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