Overview of Coilcraft Mini SpringTM Air Core Inductors
The datasheet provides detailed information on Coilcraft’s Mini SpringTM Air Core Inductors, which are designed to deliver high Q factors over a broad frequency range. The inductors are encapsulated in high-temperature materials ensuring mechanical stability and precision tolerances. This feature, combined with a flat top design, renders them appropriate for automatic placement and compatible with reflow or vapor phase processing. The solder-coated leads of the inductors guarantee reliable soldering.
Product Variants and Features
The datasheet lists specific part numbers for the Mini SpringTM inductors, along with their corresponding inductance values in nanoHenries (nH), ranging from 2.5 to 43.0 nH. It mentions the available percent tolerances for each inductor, which include standard options of 10%, 5%, and 2%, and highlights the in-stock tolerances for immediate shipment. Details are provided on the test frequency, self-resonant frequency (SRF), direct current resistance (DCR), maximum RMS current, and component weight for each inductor variant.
Ordering Information and Specifications
The document specifies that ordering inductors require indicating the tolerance code. For example, ‘AO2TG’ would denote an inductor with 2% tolerance. It also refers to Kits containing a sample of all 5% inductance tolerance parts, namely the Designer’s Kit C102, and mentions kits with 2% tolerance are also available.
Testing and Environmental Data
Details include testing frequencies, tools used for measuring inductance and Q factor, as well as the temperature range for operation, which is between -40°C to +125°C. The inductors are tested using various instruments like the Agilent/HP 4286 with Coilcraft SMD-A fixture, and the Agilent/HP 8720D, among others. The electrical specifications are provided based on a standard ambient temperature of 25°C.
Additional Resources
The datasheet mentions the availability of S-Parameter files and SPICE models on the Coilcraft website or CD for further technical assessment. Graphs of typical inductance versus frequency and Q versus frequency for the Mini SpringTM inductors are available, which aids in understanding the performance of the components across different frequencies.
Physical Dimensions and Packaging
Physical dimensions for size A and size B inductors are provided, along with recommendations for land patterns. It describes the tape and reel packaging standards, including strip length and tape width specifications.
Compliance and Contact Information
The datasheet highlights the RoHS compliance option for these inductors and provides contact information for Coilcraft, including their address, phone number, fax number, and email, for customers to obtain further information or to place orders.
Specifications are noted as subject to change and it is advised to check Coilcraft’s website for the latest information.
References:
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