Page 1 of 2 Product Name Series Type Part Number Wire Wound Inductor for Power Line VLF Series 3012A Type VLF3012AT-4R7MR74-1 Product Lifecycle Stage PROD Specification Summary/Applications/Feature Mounting Method Flag Yes Processing WINDING Shape SMD Size Code 3012 Body Length(L) Nom 2.8 m m Body Breadth(W) Nom 2.6 m m Body Height(T) Nom 1.2 m m Rated Inductance Nom 4.7 micro H Summary These are compact inductors for power line measuring at L2.6xW2.8mm and 1.2mm in height, considerably smaller compared to inductors with comparable characteristics. Applications DVCs, DSCs, PDAs, LCD displays, Cellular phones, HDDs, etc. Feature Generic use for portable DC to DC converter line High magnetic shield construction should actualize high resolution for EMC protection. Available for automatic mounting in tape and real package. The products do not contain lead and support lead-free soldering. Min -20 % Max 20 % Test Frequency of Inductance Nom 100 k Hz DC Resistance Max 0.19 Ohm DC Resistance Nom 0.16 Ohm Packing Rated Current Max 0.74 A Minumum Package Qty Nom 2000 Pcs IDC1 ( Inductance Change) Max 0.74 A Minimum Order Qty 2000 Pcs IDC2 ( Temperature Rise) Max 0.98 A Temperature Rise Max Inductance Tolerance (%) Packaging Terminal Material 40 Cel No Magnetic Shielding Yes Soldering Method Storage Temperature Range Weight Nom Copper alloy / Tin Polarity Marking Category Temperature Range Blister (Plastic)Taping [180mm Reel] Reflow Min -40 Cel Max 105 Cel Min -40 Cel Max Nom 105 Cel 0.027 g [ Caution ] Specifications which provide more details for the proper and safe use of the described product are available upon request. [ Notice of Revision and Improve ] http://roots.tdk.co.jp/rootsme.asp?ID=TJA024&NO=VLF3012AT-4R7MR74-1... 3/27/2009 Page 2 of 2 All specifications are subject to change without notice. Copyright(c) 1996-2008 All rights reserved. http://roots.tdk.co.jp/rootsme.asp?ID=TJA024&NO=VLF3012AT-4R7MR74-1... 3/27/2009