Active production — AEC-Q200 qualified
The LQH32NZ1R2K23L: AEC-Q200 qualification certifies the inductor for automotive-grade stress testing: temperature cycling, humidity bias, mechanical shock, and vibration. For a BOM destined for an engine-control module or body controller, this rating removes the need for a separate qualification run.
Core parametrics — 1.2 µH at 425 mA
Inductance is 1.2 µH ±10%, tested at 1 MHz. The 425 mA current rating is the DC bias current at which inductance typically drops by 10% — for a power rail filtering 300 mA continuous, the margin is comfortable. The 600 mOhm max DCR sets the I²R loss at 108 mW at full rated current, which the 1210 package dissipates without exceeding the 105°C upper limit. Self-resonant frequency is 100 MHz, well above the switching frequencies of common DC-DC converters (typically 500 kHz to 2 MHz), so the inductor behaves as a pure inductive element in that band. The Q factor of 20 at 1 MHz indicates moderate AC losses — adequate for general-purpose filtering and decoupling.
Package and board-fit — 1210 footprint
The unshielded drum-core construction means magnetic flux radiates — keep sensitive analog traces or low-level sensor inputs at least 5 mm away on the same layer. For a design operating in an under-hood ambient of 85°C, the inductor's 105°C ceiling leaves 20°C of self-heating margin at full current.