Shielded Inductors allow closer mounting on circuit board.
Press Release Summary:
Suited for use in RF applications, SMRF 5025S surface mount inductors have semiconductor grade molding material and high temperature solder on internal connection. Electromagnetic shielding is accomplished by placing one sleeve of magnetic material directly over coil winding; process provides shielding with less than 2% coupling. Characteristics include inductance from .10-10,000 µH and incremental current ratings from 3,900-54 mA DC.
Original Press Release:
New Shielded Inductors Reduce Board Space Requirement
SMRF 5025S Inductors for RF Applications Allow Closer Mounting on Circuit Board
15 July 2003, Gowanda, NY (USA) - Gowanda Electronics announces the introduction of a new series of surface mount inductors - SMRF 5025S - which has high performance shielding designed into the inductor, allowing electronic components to be mounted closer together on circuit boards in RF applications. This new inductor series enables design engineers to consider reductions in the surface area of the circuit board design in an effort to address the market need for smaller and smaller products.
This shielded SMRF 5025S series is targeted for use in RF applications where coupling between board components is a concern due to board density. Applications for this series include all RF signal circuitry in communications equipment, test & measurement equipment, medical diagnostic equipment and industrial process control equipment. Other applications include use in telecommunications, disk drives, computers and modems and other computer peripherals, as well as in security systems, instrumentation, bar code and laboratory analysis equipment, aviation equipment, navigation equipment, electronic test equipment, and cable TV.
The electromagnetic shielding is accomplished by placing a sleeve of magnetic material directly over the coil winding. Gowanda's manufacturing process enhances the centering of the magnetic shield which results in extremely consistent, minimum coupling from part to part. This approach tends to provide a more effective magnetic closed gap compared to the distributed gap materials incorporated in molding compounds. Gowanda's process provides shielding with typically less than 2% coupling vs. distributed gap materials which provide 3% to 5% coupling.
As with its other inductors, the company uses a semiconductor grade molding material and high temperature solder on the internal connection which results in robust and dependable components.
Technical specifications for products in the SMRF 5025S series include: inductance from .10 to 10,000 microHenries and incremental current ratings from 3900 to 54 mAmps DC (based on a 35°C temperature rise at ambient temperature of 90°C).
The SMRF 5025S series essentially provides design engineers a COTS surface mount equivalent of the company's molded RF shielded axial leaded "17S" MIL STD inductor series.
The Gowanda Electronics SMRF 5025S series of surface mount inductors offers custom designs that meet the specific requirements of an application. For design details or custom requirements contact Gowanda Electronics at (716) 532-2234 or check the company website at www.gowanda.com. Typical pricing for the SMRF 5025S series is $.81 each in production quantities.
This "SMRF5025S" inductor series complements Gowanda's extensive range of leading edge designs for power and RF applications, including its most recently introduced "CF 1008" Expanded Series of RF Inductors, "SMP 5057" Power Inductors with Higher Current Handling, 'SMRF 1812S" Robust Inductors Now Offer Shielding, 'SMT 4015" Inductors with Improved EMI Performance & Higher Current Handling, "SMT 1803" Smaller Inductors for Wireless Devices, "SMP 1812" High Current Rating Power Inductors, and 'SMRF 1812" Robust Design Surface Mount RF Inductors. Full text of these and prior news releases is available within the 'news" section of the company's website at www.gowanda.com.
Gowanda Electronics (www. gowanda.com) is a privately held company that designs, manufactures and supplies precision magnetic components for both signal and power applications. Components include inductors, chokes, toroids, and other surface mount devices which are used in a wide variety of electronic applications. Gowanda's products are used primarily by OEM companies interested in high performance electronic component solutions for the equipment they manufacture. Applications include use in test & measurement equipment, medical and diagnostic equipment, industrial automation & control equipment and instrumentation. Such equipment is used in a broad range of industries, including process and assembly industries, aviation, telecommunications, health care, data processing, security and education. Gowanda's customers include Fortune 500 companies and other significant players in these global markets, including Hewlett Packard, Agilent Technologies, Tektronix and Alcatel.
