DR127-150-R footprint, schematic symbol and 3D model by COILTRONICS

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DR127-150-R Details

Coiltronics recommends a pad layout with a diameter of 0.125 inches (3.18 mm) for the inner pad and 0.225 inches (5.72 mm) for the outer pad, with a non-solder mask defined (NSMD) pad shape.
The DR127-150-R has a maximum operating temperature of 125°C. Ensure good airflow around the inductor, and consider using a thermal interface material (TIM) to improve heat transfer between the inductor and the PCB.
Coiltronics recommends a soldering profile with a peak temperature of 240°C (464°F) for 3-5 seconds, with a ramp-up rate of 1-2°C/s and a ramp-down rate of 1-2°C/s.
Keep the DR127-150-R at least 5 mm away from sensitive components, and consider using shielding or a magnetic shield to contain the magnetic field. You can also use a mu-metal shield or a ferrite sheet to absorb the magnetic field.
The SRF of the DR127-150-R is approximately 150 MHz. This is the frequency at which the inductor's impedance peaks due to its internal capacitance and inductance.

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