Inductors Inductors Designed For National’s 150 KHz SIMPLE SWITCHERTM • Designed for use with National Semiconductor LM 259X series • Compact size and low cost • Meets flammability rating of UL 94V-0 MECHANICAL AND SCHEMATIC 6985-6991 (All dimensions in inches) SUGGESTED PAD LAYOUT SCHEMATIC UNLESS OTHERWISE SPECIFIED, ALL TOLERANCES ARE ± .010 Issue A 08/04/02 ELECTRICAL SPECIFICATIONS @ 25°C NOTES: Part Number Nominal Inductance (μH) Rated Current (Amps DC) Nominal DCR (Ω) 6985 38 3.0 0.05 6986 53 3.0 0.08 6987 77 3.0 0.08 6988 77 2.7 0.09 6989 114 2.22 0.10 6990 168 1.81 0.18 6991 250 1.5 0.23 1. SIMPLE SWITCHERTM is a trademark of National Semiconductor Corporation. 2. Inductance values are ±20%. Filtran Limited An ISO 9001 Registered Company 229 Colonnade Road, Ottawa, Ontario,Canada. K2E 7K3, Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com