120W planar transformers suit active clamp forward topology
Optimised for active clamp forward converters, including use in PoE PSE and pre-standard PD devices, Coilcraft has introduced the PoE120PL series of high-efficiency planar transformers. The series is suitable for 60-120W applications such as thin clients, monitors, industrial Ethernet, IPTV, building management, nurse call systems, point-of-sale terminals and information kiosks. They are also suited for 90W PoE++ PDs.
PoE120PL series transformers are optimised for 200kHz, with a 36-72V input. They offer excellent DCR for high efficiency and very low leakage inductance. They also provide 1500Vrms primary-to-secondary isolation and 0.229mm (0.009") clearance above the seating plane and include a 12V auxiliary winding.
The transformers have a 20.83x23.37mm footprint, with a maximum height of 10.34mm, requiring far less board space and overall volume than a standard EFD20 wire wound package. They are RoHS compliant and feature matte tin over nickel over brass terminations. They have an ambient temperature range of -40 to +125°C.
The PoE120PL series is available now from stock. Free evaluation samples are also available.
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