The FIRCH-1 from Triad Magnetics is a 2.54 µH unshielded drum core wirewound inductor rated 11.6 A with a maximum DC resistance of 5.5 mΩ, with radial vertical cylinder (open) mounting.
The FIRCH-5 from Triad Magnetics is a 5.9 µH unshielded drum-core wirewound inductor rated 5.7 A with a maximum DC resistance of 18.5 mΩ (18.5mOhm Max), for radial through-hole mounting in an open vertical cylinder.
The FIRCH-5-B from Triad Magnetics is a 5.9 µH unshielded drum-core wirewound inductor rated 5.7 A with a maximum DC resistance of 18.5 mΩ (18.5mOhm Max), for radial through-hole mounting in an open vertical cylinder.