Coilcraft, Inc. FA267x and FA2732 PoE Transformers for Silicon Laboratories Si3402 FA2671-AL FA2671-ALD

Flyback transformer designed for Silicon Laboratories Si3402 Power over Ethernet PD controllers up to 10 W, with 1500 Vrms isolation between primary and secondary windings. Operates in continuous conduction mode with 36-72 V input. Package is surface mount with tape and reel packaging, 32 mm tape width, 24 mm pocket spacing, 11.2 mm pocket depth. Weight is 3.8-3.9 g. Operating ambient temperature range is -40°C to +85°C, with maximum part temperature of +125°C. Primary inductance is 40.0 µH ±10% at 0 A, leakage inductance is 0.395 µH. Turns ratio is 1:0.3. Output is 3.3 V at 3.0 A. DC resistance is 0.098 Ω primary, 0.023 Ω secondary. Moisture sensitivity level is 1. Terminations are RoHS tin-silver over tin over nickel over phosphor bronze.