Fair-Rite Product's Catalog Part Data Sheet, 6578170121 Printed: 2013-07-03 Fair-Rite Products Corp. PO Box J,One Commercial Row, Wallkill, NY 12589-0288 Phone: (888) 324-7748 www.fair-rite.com Part Number: 6578170121 Frequency Range: Dimensions Description: 78 EP CORE Application: Inductive Components Where Used: Closed Magnetic Circuit Part Type: EP Cores Generic Name: EP17 Mechanical Specifications Weight: 6.000 (g) per Set Part Type Information EP7, EP10, EP13, EP17, EP20 EP designs reduce the effect of residual air gap upon the effective permeability of the core, hence they minimize coil volume for a given inductance. -EP cores can be supplied with the center post gapped to a mechanical dimension or an AL value. -AL value is measured at 1 kHz, B < 10 gauss. -Weight indicated is per pair or set. Fair-Rite Product's Catalog Part Data Sheet, 6578170121 Printed: 2013-07-03 Fair-Rite Products Corp. PO Box J,One Commercial Row, Wallkill, NY 12589-0288 Phone: (888) 324-7748 www.fair-rite.com Mechanical Specifications Land Patterns V Dim mm A B C D E F G H J K 18.10 8.40 11.00 5.70 12.00 5.70 3.45 mm nominal inch tol inch misc. ± 0.4 ± 0.4 ± 0.3 ± 0.2 ± 0.4 ± 0.2 min 0.713 0.331 0.433 0.224 0.472 0.224 0.136 min Electrical Specifications Typical Impedance ( ) W X Y Z - - - ref - - Winding Information Turns Wire 1st Wire 2nd Wire Tested Size Length Length - - - - Reel Information Tape Width Pitch Parts 7 '' Parts 13 '' Parts 14 '' mm mm Reel Reel Reel - - - - - Package Size Pkg Size Electrical Properties AL (nH) 2250 ±25% Ae(cm2 ) 0.33600 -1 l/A(cm ) l e (cm) 3 (-) Connector Plate 8.00 # Holes # Rows 2.68 - - Ve (cm ) 0.89900 Amin (cm2) .252 Legend + Test frequency Preferred parts, the suggested choice for new designs,have shorter lead times and are more readily available. The column H(Oe) gives for each bead the calculated dc bias field in oersted for 1 turn and 1 ampere direct current. The actual dc H field in the application is this value of H times the actual NI (ampere-turn) product. For the effect of the dc bias on the impedance of the bead material, see figures 18-23 in the application note How to choose Ferrite Components for EMI Suppression. A ½ turn is defined as a single pass through a hole. l/A - Core Constant Ae : Effective Cross-Sectional Area L AL - Inductance Factor (__ N 2) N/AWG - Number of Turns/Wire Size for Test Coil l e : Effective Path Length Ve : Effective Core Volume Nl - Value of dc Ampere-turns Fair-Rite Product's Catalog Part Data Sheet, 6578170121 Printed: 2013-07-03 Fair-Rite Products Corp. PO Box J,One Commercial Row, Wallkill, NY 12589-0288 Phone: (888) 324-7748 www.fair-rite.com See next page for further material specifications. Fair-Rite Product's Catalog Part Data Sheet, 6578170121 Printed: 2013-07-03 Fair-Rite Products Corp. PO Box J,One Commercial Row, Wallkill, NY 12589-0288 Phone: (888) 324-7748 www.fair-rite.com Fair-Rite Product's Catalog Part Data Sheet, 6578170121 Printed: 2013-07-03 Fair-Rite Products Corp. PO Box J,One Commercial Row, Wallkill, NY 12589-0288 Phone: (888) 324-7748 www.fair-rite.com