LC Series • Miniature Low Cost Toroidal Inductors LC Series surface mount toroidal inductors are designed for use in applications where energy storage is required for maintenance of a highly stable inductance when a rapid change in load current occurs. These inductors are excellent for filtering high frequency signals while supporting a substantial DC current as well as for AC ripple, switch mode power supplies and for use with DC-DC Converters. Features • Operating frequency to 1 MHz • High energy storage with minimum saturation • High stability from no load to full load • Pick and place compatible • Designed as 1:1 Coupled Inductor (Series or Parallel) or as 1:1 Isolation Transformer • Manufactured in an ISO-9001:2000, TS-16949:2002 and ISO-14001:2004 certified Talema facility • Meets lead free reflow level J-STD-020C • Fully RoHS compliant Electrical Specifications at 25°C Test frequency: Inductance measured @ 10kHz/10mV Test Voltage between windings: 500Vrms Operating Temperature: -40°C to +125°C Climatic category: IEC68-1 40/125/56 Applications DC-DC Converters • Common Mode Filter • Computer Note Books Pulse Modulation Switching Regulators: Step-up, Step-down, Inverting or dual output • Filtering Battery Powered Equipment Parallel Connected Part Number LC1-3.00-2.2 LC1-2.10-4.7 LC1-1.40-10 LC1 1.10-15 LC1-0.92-22 LC1-0.76-33 LC1-0.64-47 LC1-0.54-68 LC1-0.44-100 LC1-0.36-150 LC1-0.30-220 Series Connected Full Load Current (ADC) LO (µH) ±15% N o L o ad DCR mOhm Full Load Current (ADC) LO (µH) ±15% N o L o ad DCR mOhm Energy Storage (µJ) 2 3.00 2.10 1.40 1.10 0.92 0.76 0.64 0.54 0.44 0.36 0.30 2.2 4.7 10 15 22 33 47 68 100 150 220 9 16 37 58 86 133 205 307 376 719 866 1.50 1.05 0.70 0.55 0.46 0.38 0.32 0.27 0.22 0.18 0.15 8.8 18.8 40 60 88 132 188 272 400 600 880 36 64 148 232 344 532 820 1228 1504 2876 3464 7.0 7.2 7.2 7.0 7.1 7.2 7.1 7.2 7.2 7.2 7.3 Talema's engineering staff can assist in the design of other inductance values and sizes. Note: The µJoule rating (½LI²) is the ability of the inductor to store energy. Dimensions 9.3 6.0 2 7.8 4 1 4 1 4 2 3 2 3 2 3 Parallel Transformer 100% 3 1 1 Suggested Pad Layout Bottom View Series 100 4 80% 80 60% 60 2.3 9.8 2.3 8.4 4.7 40% 40 B 20% 0.2 Dimensions: Inches (Millimeters) Tolerance: ±0.010 (0.25) unless specified otherwise 20 0% 0 0 25% 50% 75% 100% 125% 150% 175% 200% % OF RATED ADC CURRENT Temperature Rise in °C from Ambient with ADC Current Curve B A % of Initial Inductance Curve A 9.8 Schematic Germany: Int.+4989-841 00-0 • Ireland: Int.+35 374 - 954 8666 • Czech Rep: Int.+420 377 - 338 351 • India: Int.+91 427 - 244 1325 http://www.talema-nuvotem.com (02-07) LC Series