Coilcraft, Inc. Flyback Transformers for Texas Instruments LM25184 ZA9673-BE ZA9673-BED

Flyback transformers for Texas Instruments LM25184 flyback converters, designed to operate up to 300 kHz with a 4-42 V input range, feature 1500 Vrms, one-minute isolation between primary and secondary windings and are rated for AEC-Q200 Grade 3 operation from -40°C to +85°C. The ZA9673-BED variant provides a 24 V, 0.5 A output with a 1:2 turns ratio, a primary inductance of 7 µH at 0 A and 6.3 µH at 5 A, primary DCR of 0.035 Ω, secondary DCR of 0.138 Ω, and leakage inductance of 0.10 µH. The component weighs 2.73-2.80 g, uses RoHS-compliant tin-silver-copper terminations, and is packaged in 13″ reels of 350 pieces with tape and reel dimensions of 24 mm width, 0.5 mm thickness, 16 mm pocket spacing, and 10.4 mm pocket depth. It has MSL 1 moisture sensitivity rating and withstands three reflow cycles at 260°C.