Frontier Electronics Corp.® 667 E. COCHRAN STREET, SIMI VALLEY, CA 93065 TEL: (805) 522-9998 FAX: (805) 522-9989 E-mail: [email protected] Web: http://www.frontierusa.com SMD Square Drum Inductors—1812SDF series A. Electrical specifications: Part No. Mark L (uH) Tolerance Test Freq. 1812SDF-1R0-LFR 1812SDF-1R5-LFR 1812SDF-2R2-LFR 1812SDF-3R3-LFR 1812SDF-4R7-LFR 1812SDF-6R8-LFR 1812SDF-100-LFR 1812SDF-150-LFR 1812SDF-220-LFR 1812SDF-330-LFR 1812SDF-470-LFR 1812SDF-680-LFR 1812SDF-101-LFR 1812SDF-151-LFR 1812SDF-221-LFR 1812SDF-331-LFR 1812SDF-471-LFR 1R0 1R5 2R2 3R3 4R7 6R8 100 150 220 330 470 680 101 151 221 331 471 1.00 1.50 2.20 3.30 4.70 6.80 10.0 15.0 22.0 33.0 47.0 68.0 100 150 220 330 470 M M M M M, K M, K K, J K, J K, J K, J K, J K, J K, J K, J K, J K, J K, J 1.0 KHz 1.0 KHz 1.0 KHz 1.0 KHz 1.0 KHz 1.0 KHz 1.0 KHz 1.0 KHz 1.0 KHz 1.0 KHz 1.0 KHz 1.0 KHz 1.0 KHz 1.0 KHz 1.0 KHz 1.0 KHz 1.0 KHz C 2.6 ± 0.30 D 1.0 (Min.) SRF TYP. (MHz) 100 85.0 60.0 47.0 35.0 30.0 23.0 20.0 15.0 12.0 10.0 8.4 6.8 5.5 4.5 3.6 3.0 DCR (Ω) Max. 0.08 0.09 0.11 0.13 0.15 0.20 0.24 0.32 0.60 1.00 1.10 1.07 2.20 3.50 4.00 6.80 8.50 IDC Max. (A) 1.080 1.000 0.900 0.800 0.750 0.720 0.650 0.570 0.420 0.310 0.280 0.220 0.190 0.130 0.110 0.100 0.090 B. Mechanical dimensions: (Unit: mm) SERIES 1812SDF A 4.5 ± 0.30 B 3.2 ± 0.30 E 1.0 (Min.) F 4.0 Ref. Type 2 Type: 2 C. Feature: 1. 2. 3. 4. 5. 6. 7. 8. 9. (Tolerance): J = ± 5%, K = ± 10%, M = ± 20%. Operating temperature: -25ºC TO +85ºC. Electrical specifications at +25ºC. Inductance measured on the HP4284A LCR meter DCR measured on the 502BC milli-ohm meter. I DC: Inductance drops no more than 10% at rated current or the Δt ≤ 40ºC. Temperature rises Δ t < 40ºC (Typical) at rated current and room temperature 20ºC. Tape and reel packing. Suitable for IR re-flows soldering. RoHS compliant parts. D. Applications: Ä Power supply line choke. Ä DC-DC Converters. Ä Notebooks. Ä Filters. Ä Telecommunications devices. Ì Special specifications are available for customer’s requirement. SMD Power Choke: P/N 1812SDFC series Rev. B Jan. 10, 2012. Page: 1 of 1