An Engineered Solution Provider and Manufacturer of Custom Components & Assemblies Product Solutions SX55 Series Planar Transformers With Power Ratings To 350W/700W New SX55 series Hi-Power Planar Transformers from Standex Electronics feature high performance from a compact, low-profile package. These proven designs are ideal for demanding applications where space and weight savings are vital. Applications such as military, aerospace, hybrid vehicles and alternative energy can benefit from these standard or custom Standex planar designs. Single Interleave Designs - Maximum Height 7.4mm Turns Part # SX55-1-4444 SX55-1-5544 SX55-1-6644 SX55-1-7744 SX55-1-8844 SX55-1-4477 SX55-1-5577 SX55-1-6677 SX55-1-7777 SX55-1-8877 SX55-1-4411 SX55-1-5511 SX55-1-6611 SX55-1-7711 SX55-1-8811 SX55-1-4421 SX55-1-5521 SX55-1-6621 SX55-1-7721 SX55-1-8821 PRI 4T 5T 6T 7T 8T 4T 5T 6T 7T 8T 4T 5T 6T 7T 8T 4T 5T 6T 7T 8T Sec. 4T 1T & 1T 1T & 1T 7T & 7T 1T & 1T 2T & 1T Primary* Inductance (µH Min.) 54 85 120 165 215 54 85 120 165 215 54 85 120 165 215 54 85 120 165 215 Leakage** Inductance (µH Nom) 0.15 0.18 0.22 0.28 0.33 0.15 0.18 0.22 0.28 0.33 0.15 0.18 0.22 0.28 0.33 0.15 0.18 0.22 0.28 0.33 DCR (mΩ Nom) PRI 7 12 17 25 32 7 12 17 25 32 7 12 17 25 32 7 12 17 25 32 Sec. Sch. 7.00 B1 46 &46 B2 0.9 & 0.9 B2 4&1 B3 * Inductance is measured with primary winding (2 to 4). **Leakage inductance is measured on winding (2 – 4) with all other windings shorted. Double Interleave Designs - Maximum Height 10.2mm Turns Part # SX55-2-4444 SX55-2-5544 SX55-2-6644 SX55-2-7744 SX55-2-8844 SX55-2-4411 SX55-2-5511 SX55-2-6611 SX55-2-7711 SX55-2-8811 PRI A PRI B 4T 5T 6T 7T 8T 4T 5T 6T 7T 8T 4T 5T 6T 7T 8T 4T 5T 6T 7T 8T Sec. 4T 1T & 1T 1T & 1T 1T & 1T Primary* Inductance (µH Min.) 216 340 480 660 860 216 340 480 660 860 Leakage** Inductance (µH Nom) 0.100 0.150 0.180 0.250 0.280 0.100 0.150 0.180 0.250 0.280 DCR (mΩ Nom) PRI A PRI B 7 12 17 25 32 7 12 17 25 32 7 12 17 25 32 7 12 17 25 32 Sec. Sch. 3.50 A1 0.45 & 0.45 A2 * Inductance is measured with both primary windings connected in series (2 to 5, with 3 and 4 shorted). **Leakage inductance is measured on winding (2 – 5) connected in series with all other windings shorted. PS_PlanarSX55 11.242 www.standexelectronics.com • +1.866.STANDEX (+1.866.782.6339) United Kingdom +44.1732.771.023 • China +86.22.86996881~5 Call today to find out why Standex is a world leader in planar transformer technology! Core Loss vs Flux Density An Engineered Solution Provider and Manufacturer of Custom Components & Assemblies SX-55 Series 350W/700W Mechanical Dimensions Core Loss Vs Flux Density 26.00mm Max 3 7 .005 0.13 Core Loss (Watts) 11 30.00mm Max 1 1 6 11 1 Flux (Gauss) Temperature Rise 100 90 80 70 60 50 40 30 20 10 0 7 25.40mm 1 2 H H = Maximum Height See Table on Front Suggested Pad Layout 03.30mm 15.24mm 7.62mm 12.70mm 100 Khz 200 Khz 300 Khz 400 Khz 6 6.35mm 15.88mm 02.79mm Total Loss Schematics Double Interleave Single Interleave B1 11 1T 2 PRI B 4 1 PRI AUX (OPTIONAL) 6 1T 1T 1T 10 9 8 7 B2 2 PRI B 4 1 PRI AUX (OPTIONAL) 6 B3 11 XT XT 10 8 11 1T 2 PRI B 4 1 7 PRI AUX (OPTIONAL) 6 10 9 1T 1T 8 7 A1 2 4 3 PRI B 11 1T 1T PRI A 5 1 PRI AUX (OPTIONAL) 6 1T 1T 10 9 8 7 A2 2 11 PRI B 1T PRI A 5 1 PRI AUX (OPTIONAL) 6 1T 4 3 10 8 7 Call Standex for all of your Planar transformer needs! www.standexelectronics.com • +1.866.STANDEX (+1.866.782.6339) United Kingdom +44.1732.771.023 • China +86.22.86996881~5