Bourns recommends a symmetrical PCB layout with a solid ground plane, and keeping the input and output traces as short as possible to minimize parasitic inductance and capacitance. A 4-layer PCB with a dedicated power plane and a dedicated ground plane is also recommended.
Bourns recommends using a soldering iron with a temperature of 250°C to 270°C, and applying a small amount of solder paste to the pads. The component should be placed on the PCB with the pins aligned to the pads, and then reflowed in a nitrogen atmosphere to prevent oxidation.
While the datasheet specifies an operating temperature range of -40°C to 125°C, Bourns recommends derating the device's performance at temperatures above 100°C to ensure reliable operation. It's also important to consider the thermal resistance of the PCB and the surrounding environment.
Yes, the PM105-390M-RC is designed to withstand vibrations up to 10G peak acceleration, but it's essential to ensure the device is properly secured to the PCB using a suitable adhesive or mechanical fastening method to prevent damage or dislodging.
Bourns recommends following a systematic troubleshooting approach, starting with visual inspection of the device and PCB for signs of damage or contamination. Next, verify the input and output voltages, and check for any signs of overheating or electrical overstress. If the issue persists, contact Bourns' technical support for further assistance.
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PM105-390M-RC Overview
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