Wire Wound Chip Inductors have dim. tolerance of ±0.004 in.

Press Release Summary:

LQ-LBH Series chip inductors reduce EMI, and enable mounting density with pitch of 0.3mm, Q-Values of 12-46, and non-directional surface-mountability. LQ-LBH devices provide 100% silver wire wound (Ag) internal conductors and advanced ceramics. Inductance range is from 2.7 to 100 nH, maximum current is rated from 200mA to 1A, and DC resistance values range from 0.03 to 1.0 Ohms.

Original Press Release:

New 0603 High-Frequency Chip Inductors Offer Superior Performance, Higher Packaging Density and Non-Directional Surface Mounting

SCHAUMBURG, IL--January 11, 2002--Taiyo Yuden (U.S.A). Inc. announces the availability of its new LQ-LBH Series of wire wound chip inductors for high-frequency applications. Comprised of 20 models in the EIA 0603 (EIAJ 1608) case size, the series is designed to reduce EMI in cell phone antenna unit matching circuits, VCC circuits, high-frequency wireless LAN devices and modules, and other high-frequency circuit applications. Chief OEM design benefits include superior electrical characteristics that enable higher mounting density (pitch of 0.3mm Vs. 0.5mm for typical competitor), high Q-Values and non-directional surface-mountability, a tremendous advantage in high-speed manufacturing.

Like other LQ Series inductors, LQ-LBH devices provide 100% silver wire wound (Ag) internal conductors, advanced ceramics and unique fabrication techniques for superior OEM price/performance characteristics. LQ-LBH Series inductors provide wide L-Value (inductance) ranges of 2.7-100nH and maximum current ratings of 200mA to 1A, depending on the part. In addition to extremely low DC resistance (RDC) values-typically 0.03-1.0Ohms-the LQ-LBH Series offers OEMs excellent self-resonant frequency (SRF) characteristics (2-10GHz, minimum) and among the highest Q-Values in the industry.

Q-Value, or Quality Factor, describes the degree of efficiency with which an inductor stores energy as a magnetic field. The higher the Q-Value the more effectively it operates as a filter. Q-Value is typically expressed as a numerical value at a specific frequency. Minimum Q-Values of 12-18 at 100MHz, depending on the part, are typical for LQ-LBH Series devices. At higher measured frequencies, median Q-Values increase to approximately 44 (800MHz), 46 (1.5GHz) and 36 (2.0GHz), depending on the part selected. Other LQ-LBH Series features include:

* Tighter dimension tolerances than competitive models (typical ±0.004" Vs. ±0.006");
* Lower near magnetic field effect on adjacent components and no degradation of coil characteristics (as demonstrated in comparative crosstalk tests using a 50Ohm substrate and 1.47GHz input);
* High-speed manufacturability, facilitated by the component's five-sided structure which permits non-directional surface mounting. All part numbers are available on 4,000-piece taped reels;
* High reliability; -25 to +85C operating temperature range.

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