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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 25C Test frequency: Inductance measured @ 10kHz/10mV Test Voltage between windings: 500Vrms Operating Temperature: -40C to +125C Climatic category: IEC68-1 40/125/56
Parallel Connected Part Number Full Load Current (ADC) 3.00 2.10 1.40 1.10 0.92 0.76 0.64 0.54 0.44 0.36 0.30 LO (H) 15% N o L o ad 2.2 4.7 10 15 22 33 47 68 100 150 220 DCR mOhm 9 16 37 58 86 133 205 307 376 719 866 Full Load Current (ADC) 1.50 1.05 0.70 0.55 0.46 0.38 0.32 0.27 0.22 0.18 0.15
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
Series Connected LO (H) 15% N o L o ad 8.8 18.8 40 60 88 132 188 272 400 600 880 DCR mOhm 36 64 148 232 344 532 820 1228 1504 2876 3464 Energy Storage (J) 2 7.0 7.2 7.2 7.0 7.1 7.2 7.1 7.2 7.2 7.2 7.3
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
Talema's engineering staff can assist in the design of other inductance values and sizes. Note: The Joule rating (1/2LI) is the ability of the inductor to store energy.
Schematic
4 1 4
Dimensions
Bottom View
2 7.8 9.8
1
4
1
Suggested Pad Layout
9.3 6.0 2 3 2 3 2 3
Transformer
100%
Parallel
Series
100
1 4 9.8
3
A
80% 2.3 80 60 40
4.7
% of Initial Inductance Curve A
2.3
8.4
60% 40%
B
20 0 0 25% 50% 75% 100% 125% 150% 175% 200% % OF RATED ADC CURRENT
20% 0%
0.2
Dimensions: Inches (Millimeters) Tolerance: 0.010 (0.25) unless specified otherwise
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
Temperature Rise in C from Ambient with ADC Current Curve B

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