Pcb Via Current Rating

A microvia corresponds at least a trace with the width 4mil 0 1mm the thickness 13um and stands a current of 0 2a.

Pcb via current rating. Current carrying capacity of vias t 10 sek. A pcb trace width vs. It s no good to make a wide trace and large pin hole and then have it end in a ground plane with thermo traps enabled just 4 very thin traces of copper instead of a full ring. Adequate trace width is necessary to ensure the desired amount of current can be transported without overheating and damaging your board.

As i know there exist limits on maximum current a pcb via can tolerate before it melts before the via s temperature rises unacceptably high above ambient say 10 100 c above ambient depending on. Jay wang june 25 2006 i found an article describing the via vs. Make sure half of the current can enter the via from the rear wide enough rim at both layers. Looking first at the cross sectional areas they are equal for both the via and the trace when.

Via capacitance via inductance via impedance. Current from the following link. Calculates the current a via needs to raise its temperature over ambient per ipc 2152. You may use this online tool to calculate an estimate of the minimum trace width for a given current and copper weight.

Thanks for the good suggestions. Mm diameter of the via. Added de rating for fiberglass substrates for via and conductor properties. Pcb via current calculator per ipc 2152.

Therefore we recommend 10 12mil via to load current higher efficiency but also more convenient design. Pcb trace width calculator trace width is an important design parameter in pcb design. It seems reasonable that the current carrying capacity of the via is determined by the same thing that de termines the current carrying capacity of the trace cross sectional area and environment. Ampere rule of thumb.

Current table helps you understand the relationship between pcb trace width and current carrying capacity so you can determine the required trace width for your printed circuit board design. Also take any thermo traps or how that s called in english into consideration. Mm current carrying capacity. 12mil via can safely carry around 1 2a of current which is looser than the widely recognized 0 5 in the industry.