DC resistance and conduction loss at rated current
The LQH3NPN2R2MMEL: Maximum DCR is 78 mOhm, which translates to about 116 mW of I²R loss at the full 1.22 A rating. In a typical 3.3 V to 1.8 V buck converter running at 600 mA, the conduction loss drops to roughly 28 mW — well within the thermal budget of the 1212 package without forced airflow. The self-resonant frequency of 60 MHz means this inductor stays inductive well above the switching frequency of most intermediate-bus converters (typically 300 kHz to 2 MHz). Above SRF the impedance becomes capacitive, so keep the switching edge rate below 10 MHz to avoid parasitic coupling.
Shielded construction and temperature range
Shielded ferrite core reduces magnetic flux leakage to adjacent traces — important when the inductor sits near a sensitive analog front-end or RF section on the same PCB. Tape-and-reel or cut-tape options available for prototype or production quantities.