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Specifically, the series is for converters operating at between 100 and 200kHz, and up to 3.3kW.
There are four parts, from 90 to 285uH, all with a 43 x 35mm footprint and standing 38mm above the PCB.
They can operate across -55 to +150°C and with surges up to 400Vdc.
The part numbers are PFC433835B with a dashed suffix:
- -900MHF : 90uH 50A 6mΩ
- -111MHF : 115uH 44.5A 7.7mΩ
- -191MHF : 190uH 34.6A 12mΩ
- -281MHF : 285uH 28.3A 18.2mΩ
The dc current above is that which typically causes inductance to drop 50% at 25°C.
“The PFC433835B Series features a flat wire and square core construction,” said the company, claiming: “The solutions are up to 50% smaller compared with toroidal-shaped PFC chokes with similar power ratings, and their flat wire technology can reduce DC resistance by as much as 40%.”
The core is alloy powder, and they offer “no thermal aging concerns”, said ITG.
MTBF = >2bn hours with FIT = 0.48/bnh according to Telcordia SR-332.
Founded in 1963, ITG Electronics is headquartered in New York.
