High-frequency air core inductors suit dense board assemblies

July 17, 2013 // By Julien Happich
Coilcraft's 1111SQ Series high-performance, square air core inductors offer exceptionally high Q factors up to 200 at 400MHz, and inductance values from 27nH to 47nH.

The 1111SQ Series is available in seven models with footprints from 2.67x2.67mm. The spring was engineered to have a unique, square shape that has been optimised for coplanarity, resulting in a flat top and bottom for reliable pick and place operation and mechanical stability on the PC board. Solder-coated leads also ensure excellent solderability.

These latest additions to Coilcraft’s growing line of high-frequency square air core inductors offer current ratings to 5.5 A, making them suitable for use as chokes in high-current RF power amplifiers for cellular towers and high-power radar. Their combination of performance, inductance values, and tolerances as tight as 2% also make them ideal components in DOCSIS (Data Over Cable Service Interface Specification) applications such as set-top boxes and cable modems.

Coilcraft;  www.coilcraft.com