Surface Mount Power Inductors
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Surface Mount Power Inductor Steward’s DI2220V301R-10 is a surface mount, high current power inductor (in the industry’s smallest package) with exceptional performance under DC Bias. Very low DCR provides superior thermal performance under DC bias. This compact, monolithic component produces flat inductance over the driven current range (from 3 to 8 amps) comparable to a larger, heavier, wire-wound toroidal inductor. Patent Pending • Low Profile (height is 3.61mm / 0.142”) • EMI resistant, fully shielded printed coil • Small footprint (one fourth the footprint of an equivalent performance, old style, wire wound inductor assembly) • Superior performance under DC Bias • Rugged, vibration resistant monolithic construction • Maximum performance at 8 amps will yield > 250nH • Distributed power multiphase DC-DC converters that use Steward’s new power inductor can operate faster, cooler and cleaner • New high performance, multiphase designs (with the new power inductor) require significantly less total pc board space and usually have lower system cost • Power inductor for DC-DC Converter • Specifically tuned to work with the new generation of high frequency multiphase DC-DC converters • Mounting can be on back side of pc boards • Applications with Voltage Regulator Modules Test Specifications: • Maximum current ratings are determined by testing to a maximum temperature rise of 40oC with continuous operating current • Board level components are rated up to a maximum of 75 volts Tested with: • HP4396A (100KHz - 1.8 GHz) or HP8753 (to 6 GHz) Network/Spectrum Analyzer • HP43961A Impedance Test Kit • HP16192A Test Fixture or Inter-Continental Microwave custom fixtures • HP16200A DC Bias Adapter • Philips PM2811 DC Power Supply • Ambient Temperature 23.5oC + 2o • Bandwidth 3 kHz • Sweep Time 423 ms PART NUMBERING SYSTEM EXAMPLE DI Product Series Code Part Size Code Rated Continuous Current Code Inductance Value Code Packaging Code Additional Description Ambient Operating Temperature Range: -55°C to +125°C L @ 2 MHz TYPICAL nH (+ 10%) PART NUMBER DI2220V301R-10 INDUCTANCE UNDER BIAS 1200 North America - U.S.A. • Phone: +1 423 308 1690 • Fax +1 423 308 1622 • e-mail: americas@steward.com North America - Mexico • Phone: +52 662 260-4832 • Fax: +52 662 216 1202 • e-mail: mexico@steward.com Europe - Scotland, UK • Phone: +44 (0)1506 414200 • Fax +44 (0)1506 410694 • e-mail: europe@steward.com Asia / Pacific - Singapore • Phone: +65 6272 2646 • Fax : +65 6272 6165 • e-mail: asia@steward.com REV China • Phone: +86-757-2563 8860 • F

Recommended Lead Free Soldering Conditions Natural Cooling Equivalent Circuit Land Patterns Surface Mount Power Inductor Brochure 0021A - REV 4.01 - 01/2006 Steward produces an extensive line of ferrite products for Inductive and EMI Filtering Applications. Products include ferrite EMI cable cores, connector plates, unique common mode chokes, can-bus chokes, high current thru hole and surface mount components, impedance chip beads, surface mount inductors, toroid inductor cores and ferrite powders. Please consult our web site, Steward’s EMI and Inductive Components full catalog, or contact...