PQ20/16, PQ20/20, PQ26/20, PQ26/25, PQ32/20, PQ32/30, PQ35/35, PQ40/40, PQ50/50 PQ cores were developed for use in power applications. The large surface area to volume of the core aids in heat dissipation. PQ cores are employed both in filter and transformer designs for switch mode power supplies. • PQ cores can be supplied with the centerpost gapped to a mechanical dimension or an ALvalue. • AL value is measured at 1 kHz, B < 10 gauss. • Weight indicated is per pair or set. Legend: Symbols & Definition Explanation of part numbers: Digits 1 & 2 = product class, 3 & 4 = material grade. Dimensions Row # Part Number Generic Size A B C D E F G Wt. (g) per Set (1) 6678211621 6698211621 6695211621 6678212021 6698212021 6695212021 6678272021 6698272021 6695272021 6678272521 6698272521 6695272521 6678322121 6698322121 6695322121 6678323121 6698323121 6695323121 6678353621 6698353621 6695353621 6678404121 6698404121 6695404121 6678505021 6698505021 6695505021 PQ20/16 20.50 ± 0.4 0.807 8.00 ± 0.15 0.315 14.00 ± 0.4 0.551 5.00 ± 0.15 0.197 18.00 ± 0.4 0.709 8.80 ± 0.2 0.346 12.00 min 0.472 min 13.00 PQ20/20 20.50 ± 0.4 0.807 10.20 ± 0.15 0.402 14.00 ± 0.4 0.551 7.00 ± 0.15 0.276 18.00 ± 0.4 0.709 8.80 ± 0.2 0.346 12.00 min 0.472 min 16.00 PQ26/20 26.50 ± 0.5 1.043 10.10 ± 0.15 0.398 19.00 ± 0.4 0.748 5.75 ± 0.15 0.226 22.50 ± 0.4 0.886 12.00 ± 0.3 0.472 15.50 min 0.610 min 30.00 PQ26/25 26.50 ± 0.5 1.043 12.50 ± 0.15 0.492 19.00 ± 0.4 0.748 8.05 ± 0.15 0.317 22.50 ± 0.4 0.886 12.00 ± 0.3 0.472 15.50 min 0.610 min 36.00 PQ32/20 32.00 ± 0.6 1.260 10.25 ± 0.15 0.404 22.00 ± 0.4 0.866 5.75 ± 0.15 0.226 27.50 ± 0.5 1.083 13.45 ± 0.3 0.530 19.00 min 0.748 min 43.00 PQ32/30 32.00 ± 0.6 1.260 15.15 ± 0.15 0.596 22.00 ± 0.4 0.866 10.65 ± 0.15 0.419 27.50 ± 0.5 1.083 13.45 ± 0.3 0.530 19.00 min 0.748 min 57.00 PQ35/35 35.10 ± 0.6 1.382 17.40 ± 0.2 0.685 26.00 ± 0.5 1.024 12.50 ± 0.2 0.492 32.00 ± 0.5 1.260 14.35 ± 0.25 0.565 23.50 min 0.925 min 73.00 PQ40/40 40.50 ± 0.9 1.594 19.88 ± 0.13 0.783 27.93 ± 0.53 1.100 14.75 ± 0.15 0.581 36.40 min 1.433 min 14.70 ± 0.30 0.579 27.20 min 1.071 min 97.00 PQ50/50 50.00 ± 0.8 1.969 25.00 ± 0.15 0.984 32.00 ± 0.6 1.260 18.10 ± 0.25 0.713 44.00 ± 0.7 1.732 20.00 ± 0.4 0.787 32.00 min 1.260 min 195.00 (2) (3) (4) (5) (6) (7) (8) (9) Fair-Rite Products Corp. PO Box 288, One Commercial Row, Wallkill, NY 12589-0288 118 Phone: (888) FAIR RITE / (845) 895-2055 • Fax: (888) FERRITE / (845) 895-2629 • (888) 324-7748 (888) 337-7483 E Web: www.fair-rite.com -mail: [email protected] Magnetic Core Parameters Table Continued ... Row # Part Number ∑l /A(cm-1) l (cm) Ae(cm2) Ve(cm3) A min(cm2) AL(nH) (1) 6678211621 6698211621 6695211621 6678212021 6698212021 6695212021 6678272021 6698272021 6695272021 6678272521 6698272521 6695272521 6678322121 6698322121 6695322121 6678323121 6698323121 6695323121 6678353621 6698353621 6695353621 6678404121 6698404121 6695404121 6678505021 6698505021 6695505021 6.00 3.69 0.615 2.27 0.601 3430 ±25% 3430 ±25% 3880 ±25% 7.20 4.52 0.625 2.526 0.608 2920 ±25% 2920 ±25% 3500 ±25% 3.72 4.48 1.203 5.385 1.131 5510 ±25% 5510 ±25% 6500 ±25% 4.59 5.40 1.177 6.359 1.131 4670 ±25% 4670 ±25% 6000 ±25% 3.27 5.373 1.642 8.821 1.404 6000 ±25% 6000 ±25% 7900 ±25% 4.59 7.53 1.642 12.37 1.401 4500 ±25% 4500 ±25% 6500 ±25% 4.82 8.82 1.83 16.13 1.617 4900 ±25% 5100 ±25% 6200 ±25% 5.23 10.36 1.98 20.50 1.70 4300 ±25% 4300 ±25% 5850 ±25% 3.59 11.47 3.19 36.63 3.142 6720 ±25% 6720 ±25% 8000 ±25% (2) (3) (4) (5) (6) (7) (8) (9) e Fair-Rite Products Corp. PO Box 288, One Commercial Row, Wallkill, NY 12589-0288 Phone: (888) FAIR RITE / (845) 895-2055 • Fax: (888) FERRITE / (845) 895-2629 • (888) 324-7748 (888) 337-7483 E Web: www.fair-rite.com -mail: [email protected] 119