Fair-Rite Product's Catalog Part Data Sheet, 5677301921 Printed: 2010-11-09 Fair-Rite Products Corp. PO Box J,One Commercial Row, Wallkill, NY 12589-0288 Phone: (888) 324-7748 www.fair-rite.com Part Number: 5677301921 Frequency Range: MnZn 77 material Description: 77 POT CORE Application: Inductive Components Where Used: Closed Magnetic Circuit Part Type: Pot Cores Preferred Part: Mechanical Specifications Weight: 19.000 (g) Part Type Information The pot core has found wide application in all types of inductive components. The core configuration provides a high degree of self-shielding. It also facilitates gapping to enhance its utility for a variety of magnetic designs. -The part number is for a single core. -Pot cores can be supplied with the center post gapped to a mechanical dimension. -Pot cores can also be gapped to an Al value. These parts will be supplied as sets. Figure 1 pot core sets that have an airgap in one of the core halves will be marked with a white marking on the backwall. Pot core sets that are gapped symmetrically will not be marked. -AL value is measured at 10 kHz, at < 10 gauss. -The pot cores shown in Figure 1 are in conformance with IEC 60133. -For any pot core requirement not listed here or for gapped pot core designs feel free to contact our customer service. -Explanation of Part Numbers: Digits 1&2 = product class, 3&4 = material grade, 5&6 = core OD in mm's, 7&8 = height of assembled cores in mm's, 9&10 = 21 for ungapped core halves. Fair-Rite Product's Catalog Part Data Sheet, 5677301921 Printed: 2010-11-09 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 30.00 9.40 21.50 6.60 25.40 13.30 4.20 5.55 0.60 - mm nominal inch tol inch misc. ±0.50 ±0.10 ±1.00 ±0.10 ±0.40 ±0.20 ±0.60 ±0.15 Min - 1.181 0.370 0.846 0.260 1.000 0.524 0.165 0.218 0.024 - 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) 4425 Min Ae(cm2 ) 1.36000 -1 l/A(cm ) l e (cm) 3 (-) Connector Plate 3.30 # Holes # Rows 4.50 - - Ve (cm ) 6.10000 Amin (cm2) 1.140 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, 5677301921 Printed: 2010-11-09 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, 5677301921 Printed: 2010-11-09 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, 5677301921 Printed: 2010-11-09 Fair-Rite Products Corp. PO Box J,One Commercial Row, Wallkill, NY 12589-0288 Phone: (888) 324-7748 www.fair-rite.com