8542

INDUCTORS Inductors Designed for 8540-8548 Nationals’ 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 (All dimensions in inches) SUGGESTED PAD LAYOUT SCHEMATIC ELECTRICAL SPECIFICATION @ 25˚C Part Number 8540 8541 8542 8540-8548 Nominal Inductance (µH) 17 24 37 53 77 11 2 168 248 377 Rated Current (Amps DC) 3.00 2.74 2.24 1.87 1.54 1.26 1.02 0.83 0.68 Nominal DCR (Ω) 0.05 0.07 0.10 0.13 0.20 0.30 0.40 0.60 1.00 8543 8544 8545 05/01 8546 8547 ISSUE: A 8548 NOTES: 1. SIMPLE SWITCHERTM is a trademark of National Semiconductor Corporation. 2. Inductance values are ±20%. 229 Colonnade Road, Ottawa, Ontario, Canada K2E 7K3 Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com An ISO 9001 Registered Company