470 nH, 2.9 A — the DC bias and saturation ceiling
The LQH32PHR47NNCL is a 470 nH shielded wirewound inductor from Murata's LQH32 series, rated for 2.9 A continuous with a saturation current floor of 4.4 A. The ±30% tolerance on the nominal 470 nH is typical for power-grade ferrite-core inductors — the inductance drops with DC bias, and the wide tolerance reflects the core material's permeability variation. At the 4.4 A saturation point the inductance falls by about 30% from the zero-bias value; the part still functions as a choke but the ripple current rises proportionally.
AEC-Q200 qualification and the 1210 footprint
AEC-Q200 Grade 3 qualification means the inductor has passed the full automotive stress suite: thermal shock, moisture resistance, mechanical shock, vibration, and solder heat. The nonstandard package designation means the pad layout follows the manufacturer's recommended land pattern — the ferrite core sits flush against the PCB, and the terminations wrap under the body for a solder fillet that is inspectable after reflow. Self-resonant frequency is 100 MHz, which sets the upper bound for effective filtering — above SRF the inductor behaves capacitively. For a DC-DC converter switching at 2-3 MHz, the 100 MHz SRF leaves ample margin so the parasitic capacitance does not couple switching noise through the winding.
Sourcing posture and lifecycle
Supplied on tape-and-reel (embossed carrier, 7-inch reel) or cut-tape for prototype quantities. The reel quantity is the standard 2000 pieces for 1210-size inductors; the cut-tape option suits engineering samples and low-volume builds without committing to a full reel.