Overview of Coilcraft Mini Spring™ Air Core Inductors
Coilcraft’s Mini Spring™ Air Core Inductors are high-performance surface mount components designed to deliver exceptionally high Quality Factor (Q) across a broad frequency range. These inductors are well-suited for automatic placement thanks to their jacketing with high-temperature material, which also contributes to mechanical stability and precision tolerances. The inclusion of solder-coated leads promotes reliable solder connections.
Product Specifications
The datasheet lists a range of parts under the AxxT and BxxT series, with inductance values ranging from 2.5 nH to 43.0 nH and tolerances set at 2%, 5%, or 10%. Noteworthy specifications include the Self Resonant Frequency (SRF) with minimums up to 12.5 GHz, Direct Current Resistance (DCR) maxima up to 7.9 mOhms, and the current handling capability specified as Irms (in Amperes), which indicates how much current the inductor can manage without overheating. Their light weight, measuring in milligrams, underscores their suitability for compact electronic applications.
Ordering and Packaging
Coilcraft specifies the ordering codes by part number, tolerance, and packaging codes. The inductors are available in standard EIA tape and reel packaging, with reel sizes being 12 mm for AxxT and 16 mm for BxxT parts. Two packaging options include the 7″ machine-ready reel and a 13″ factory-order edition. Exact packaging details and components per reel vary by series, and customization options are provided for non-machine-ready tapes.
Additional Resources
Designer’s kits featuring a range of inductance tolerances are offered by Coilcraft to provide a sample of available parts. For further insights and precision modeling, the datasheet references available S-Parameter files and SPICE models on Coilcraft’s website or CD. These resources assist in effectively incorporating inductors into electronic designs by accurately predicting their behavior within circuits.
Performance Graphs and Footprint Recommendations
Graphical representations are provided to showcase typical inductance versus frequency and Quality Factor versus frequency relationships for the various inductor models. Recommended land patterns are also detailed to assist in PCB design, ensuring compatibility with the inductors’ physical dimensions.
Environmental Compliance
These Coilcraft Mini Spring™ Air Core Inductors are compliant with the Restriction of Hazardous Substances (RoHS), thus aligning with current environmental and safety regulations for electronics.
Throughout the datasheet, Coilcraft emphasizes that specifications are susceptible to alteration without notice. Users are encouraged to visit the Coilcraft website for the most up-to-date information.
References:
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