Coilcraft, Inc. RA6992-BL SMT Planar Transformer for Texas Instruments UCC2897 RA6992-BL

RA6992-BL is a surface mount planar transformer designed for the Texas Instruments UCC2897 active clamp forward converter in the PMP9656 reference design, rated for 250 W at 200 kHz with a 48-60 Vdc input. It features 1500 Vrms primary-to-secondary isolation, primary DCR of 6.9 mΩ, secondary DCR of 4.2 mΩ, and primary leakage inductance of 0.25 µH. The transformer has eight primary, four secondary, and four auxiliary turns, delivering 12 V at 21 A. It operates with an ambient temperature range of -40°C to +85°C and a maximum part temperature of +125°C. The part is packaged in a tray of 25, with matte tin over nickel over brass terminations, weighs 26.5 g, and meets MSL 1 moisture sensitivity. Dimensions include 0.009 in (0.229 mm) clearance above the PCB seating plane.