FRM24-3C90

FERROXCUBE DATA SHEET FRM24/3.9/10 Frame and Bar cores and accessories Supersedes data of September 2004 2008 Sep 01 Ferroxcube Frame and Bar cores and accessories CORE SETS Effective core parameters SYMBOL Σ(I/A) Ve Ie Ae Amin m m PARAMETER core factor (C1) effective volume effective length effective area minimum area mass of frame mass of bar VALUE 5.65 370 45.8 8.1 6.0 ≈ 1.3 ≈ 1.2 UNIT mm−1 mm3 mm mm2 mm2 g g 5.7 ±0.1 handbook, halfpage FRM24/3.9/10 0.5 max. 3.85 ±0.1 1.3 ±0.05 7.3 9.8 ±0.2 ±0.2 19.2 ±0.3 23.8 ±0.3 CBW565 Dimensions in mm. Fig.1 FRM24/3.9/10 core. Ordering information for bar cores GRADE 3C90 3C91 TYPE NUMBER BAR25/2.2/4-3C90 BAR25/2.2/4-3C91 24.7 ±0.3 handbook, halfpage 4.4 ±0.2 2.15 ±0.05 CBW537 Dimensions in mm. Fig.2 BAR25/2.2/4. 2008 Sep 01 898 Ferroxcube Frame and Bar cores and accessories Frame cores for use in combination with matching bar cores AL measured in combination with bar core. GRADE 3C90 3C91 AL (nH) 370 ±25% 440 ±25% µe ≈ 1 660 ≈ 1 970 AIR GAP (µm) ≈0 ≈0 FRM24/3.9/10 TYPE NUMBER FRM24/3.9/10-3C90 FRM24/3.9/10-3C91 Properties of Frame and Bar combinations under power conditions B (mT) at GRADE H = 250 A/m; f = 10 kHz; T = 100 °C ≥320 ≥320 f = 25 kHz; ˆ B = 200 mT; T = 100 °C ≤ 0.041 − CORE LOSS (W) at f = 100 kHz; ˆ B = 100 mT; T = 100 °C ≤ 0.044 − f = 100 kHz; ˆ B = 100 mT; T = 60 °C − ≤ 0.019 f = 100 kHz; ˆ B = 200 mT; T = 60 °C − ≤ 0.15 3C90 3C91 2008 Sep 01 899 Ferroxcube Frame and Bar cores and accessories COIL FORMERS General data PARAMETER Coil former material Pin material Maximum operating temperature Resistance to soldering heat Solderability SPECIFICATION FRM24/3.9/10 liquid crystal polymer (LCP), glass-reinforced, flame retardant in accordance with “UL 94V-0” ; UL file number E54705(M) copper-tin alloy (CuSn), tin (Sn) plated 155 °C, “IEC 60085”, class F “IEC 60068-2-20” , Part 2, Test Tb, method 1B, 350 °C, 3.5 s “IEC 60068-2-20”, Part 2, Test Ta, method 1: 235 °C, 2 s 6.8 1.15 18.8 0.48 5.25 4.6 handbook, full pagewidth 0.3 4.3 30.05 ±0.15 31.9 ±0.15 CBW546 2.2 2.75 27.95 ±0.15 1.6 (×7) 3.7 8.1 9.7 0.5 0.5 6.1 0.3 (×6) 0.4 4.8 1.6 Dimensions in mm. Fig.3 SMD coil former for FRM24/3.9/10. Winding data and area product NUMBER OF SECTIONS 8 NUMBER OF SOLDER PADS 9 WINDING AREA (mm2) 2.9 + 7 × 1.24 WINDING WIDTH (mm) 3.7 + 7 × 1.6 AVERAGE LENGTH OF TURN (mm) 17.3 AREA PRODUCT Ae x Aw (mm 4) TYPE NUMBER 23.5 + 7 x 10.0 CPHS-FRM24/10-8S-9P 2008 Sep 01 900 Ferroxcube Frame and Bar cores and accessories DATA SHEET STATUS DEFINITIONS DATA SHEET STATUS Preliminary specification Product specification PRODUCT STATUS Development DEFINITIONS FRM24/3.9/10 This data sheet contains preliminary data. Ferroxcube reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. This data sheet contains final specifications. Ferroxcube reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. Production DISCLAIMER Life support applications  These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Ferroxcube customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Ferroxcube for any damages resulting from such application. PRODUCT STATUS DEFINITIONS STATUS Prototype Design-in Preferred Support INDICATION DEFINITION These are products that have been made as development samples for the purposes of technical evaluation only. The data for these types is provisional and is subject to change. These products are recommended for new designs. These products are recommended for use in current designs and are available via our sales channels. These products are not recommended for new designs and may not be available through all of our sales channels. Customers are advised to check for availability. 2008 Sep 01 901