Document 404-1 Low Profile Mini SpringTM Inductors This series of spring inductors offers the excellent performance of our standard Mini SpringTM Air Core inductors at less than two-thirds the height. Being only 2 mm tall, they are perfect for height restricted designs. These inductors feature high Q over a wide range of frequencies, low DCR, excellent current handling capability and tight inductance tolerances. They are ideal as power supply chokes, filters and for use in high-frequency applications. Coilcraft Designer's Kit C394 contains ten samples each of the 5% tolerance parts shown. To order, contact Coilcraft or visit http://order.coilcraft.com. Part number1 1508-5N5JL_ 1508-9N0JL_ 1508-13NJL_ 2508-16N_L_ 2508-18N_L_ 2508-23N_L_ 2508-27N_L_ L2 (nH) 5.5 9.0 13.0 16.0 18.0 23.0 27.0 % tol3 5 5 5 5,2 5,2 5,2 5,2 Q2 min 115 120 100 110 110 110 110 SRF DCR min4 max5 Irms6 Wt (MHz) (mOhm) (A) (mg) 5000 2.6 4.0 52 4000 3.4 4.0 65 3000 3.9 4.0 78 3000 5.2 4.0 110 2900 6.0 4.0 118 2600 6.8 4.0 133 2300 7.9 4.0 147 1. Specify tolerance (for 2508) and packaging code: 2. 3. 4. A D 5. 6. 7. 8. E 2508-27NJLC G = 2% J = 5% C = 7 machine-ready reel. EIA-481 embossed plastic tape (1000 parts per full reel). B = Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter C instead. D = 13 machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (3500 parts per full reel). L and Q measured at 250 MHz, 0.1 Vrms, 0 A using an Agilent/HP 4291A impedance analyzer with an Agilent/HP 16193A test fixture. Tolerances in bold are stocked for immediate shipment. SRF measured using an Agilent/HP 8753 network analyzer and a Coilcraft SMD-D test fixture. DCR measured using a micro-ohmmeter. Typical DC current for a 15C temperature rise above 25C ambient. Operating temperature range -40C to +125C. Electrical specifications at 25C. Tolerance: Packaging: C B 1508 F Size 1508 A max 0.155 3,94 B max 0.165 4,19 C max 0.079 2,01 D 0.135 3,43 E 0.115 0.015 2,92 0,38 F max 0.029 0,74 2508 0.270 6,86 0.165 4,19 0.079 2,01 0.135 3,43 0.230 0.015 5,84 0,38 0.029 0,74 Strip Length 180 max Terminations: Tin-silver over copper Tape and reel: 1000/7 reel; 3500/13 reel 12 mm tape width For packaging data see Tape and Reel Specifications section. 45 min 0.180 4,57 0.050 1,27 0.180 4,57 0.180 4,57 0.065 1,65 0.165 4,19 0.280 7,11 Recommended Land Patterns Specifications subject to change without notice. Please check our website for latest information. (c) Coilcraft, Inc. 2005 2508 0.050 1,27 Document 404-1 Revised 09/06/05 Document 404-2 Low Profile Mini SpringTM Inductors Typical L vs Frequency Typical Q vs Frequency 50 300 13.0 nH 16.0 nH 275 45 27.0 nH 250 40 18.0 nH 23.0 nH 27.0 nH 23.0 nH 30 25 18.0 nH 20 16.0 nH 15 13.0 nH 10 200 Q factor Inductance (nH) 225 35 175 150 125 100 75 50 5 25 0 0 1 10 100 1000 10000 1 10 Frequency (MHz) Specifications subject to change without notice. Please check our website for latest information. (c) Coilcraft, Inc. 2005 100 1000 10000 Frequency (MHz) Document 404-2 Revised 09/06/04