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 Ferrite-core Inductors—1812SDF series A. Electrical specifications: Part No. Mark L (uH) Tolerance Test Freq. SRF Min (MHz) DCR (Ω) ± 40% IDC Max. (A) 1812SDF-1R0 1812SDF-1R5 1812SDF-2R2 1812SDF-3R3 1812SDF-4R7 1812SDF-6R8 1812SDF-100 1812SDF-150 1812SDF-220 1812SDF-330 1812SDF-470 1812SDF-680 1812SDF-101 1812SDF-151 1812SDF-221 1812SDF-331 1812SDF-471 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 MHz/1.0V rms 1.0 MHz/1.0V rms 1.0 MHz/1.0V rms 1.0 MHz/1.0V rms 1.0 MHz/1.0V rms 1.0 MHz/1.0V rms 1.0 MHz/1.0V rms 1.0 MHz/1.0V rms 1.0 MHz/1.0V rms 1.0 MHz/1.0V rms 1.0 MHz/1.0V rms 1.0 MHz/1.0V rms 1.0 MHz/1.0V rms 1.0 MHz/1.0V rms 1.0 MHz/1.0V rms 1.0 MHz/1.0V rms 1.0 MHz/1.0V rms 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 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 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 A B C D E F Type 1812SDF 4.5 ± 0.30 3.2 ± 0.30 2.6 ± 0.30 1.0 (Min.) 1.0 (Min.) 4.0 Ref. 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. Inductance drops no more than 10% at rated current. Temperature rises Δ t < 20ºC (Typical) at rated current. Suitable for IR re-flows soldering; Tape and reel packing. Murata P/N LQH43CN series compatible. 10. RoHS compliant. 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 1812SDF series Jan. 01, 2006. Page: 1 of 1