22 µH at 150 mA — the filtering envelope
The LQH32MN220K23L: Rated 22 µH ±10% at 1 MHz test frequency with a 150 mA continuous current rating — this sets the inductor's saturation and thermal limits for low-current DC-DC converter output filters or signal-line noise suppression. Maximum DC resistance of 2.8 Ohm means the I²R loss at full rated current is about 63 mW — acceptable for a 1210 footprint but a significant efficiency penalty if the inductor is used near its current ceiling in a battery-powered rail. Self-resonant frequency of 14 MHz defines the upper bound for effective inductive impedance — above this frequency the component behaves capacitively, so it is not suitable for filtering switching noise above roughly 7 MHz (half the SRF).
Unshielded drum-core — layout implications
Unshielded wirewound construction on a ferrite core means the magnetic field radiates from the component — adjacent traces carrying analog signals or RF should be spaced at least one component width away to avoid coupling noise. Q factor of 35 at 1 MHz is typical for a drum-core inductor at this inductance value — adequate for tuned circuits or resonant converters operating near the test frequency, but not a high-Q part for narrowband RF filters.
1210 SMD footprint — assembly and supply
Supplied in Tape & Reel for volume production or Cut Tape for prototypes — reel quantities suit automated assembly lines; Cut Tape avoids minimum-order overhang for small-batch builds or rework.