3.3µH SMD flat-wire design for demanding power stages
LF-PQ2618-3R3-74A is an engineering-led IKP design for industrial power, energy storage, charging and high-current DC/DC. The current definitions and validation status stay visible so your team can compare the part without confusing thermal and saturation ratings.
48A is the thermal-current target under the stated temperature-rise method. 74A is the Isat30 target, where inductance reduction is evaluated at 25°C. Neither value should be transferred to a new cooling, waveform or ambient condition without validation.
Thermal-current target
48A
Isat30 target
74A
Release status
A0 · first article required
MEASURED ENGINEERING EVIDENCE
Pulsed L-I response remains near 3µH at 74A
A DPG10 pulse test dated 5 December 2024 recorded 3.00µH at 74A and 2.24µH at 80A. This is useful design evidence, not a production certificate; final qualification uses the agreed sample and test plan.
High-current DC/DC stages, output filtering and power modules where copper loss and saturation margin need to be reviewed together.
02
Energy storage & solar
PCS, inverter and bidirectional converter stages with defined ripple, transient, cooling and mechanical constraints.
03
Charging power
Charging modules and isolated/non-isolated converter stages; automotive qualification is not claimed for this A0 design.
04
Server & telecom power
48V/50V distribution and high-density power conversion where SMD mounting and winding loss are design drivers.
CONFIGURATION PATH
Use the drawing as a starting point, not a fixed boundary
The PQ2618 series workbook includes alternative winding configurations. IKP can review inductance, DCR, thermal current, saturation margin, terminals and land pattern against your actual operating point.
ElectricalInductance, ripple waveform, RMS/peak current, switching frequency and loss target
ThermalAmbient, airflow or cold plate, duty cycle and permitted temperature rise
Mechanical27.2 × 30.0 × 18.5mm reference envelope, SMD terminals and PCB land pattern
CommercialSample timing, annual volume, drawing approval and validation evidence
ENGINEERING RFQ
Share the operating point and receive a controlled comparison
Send your topology, current waveform, target inductance, frequency, cooling, available space and volume. IKP will return a standard, modified or custom path with open validation items.
