PCB trace width can be determined after considering several considerations including:
Purpose: power trace or signal trace ?
Amperage: or, current, through the trace.
Location: top or bottom layer, or, inner layer, where heat can’t escape as quickly.
Thickness: how thick is the copper on the layer ?
Length: how long is the trace ?
STD Practices
Width –In general, trace widths used to carry signal can be smaller than traces used to carry current. For a trace optimized for current a good range of widths might be from 0.010” for 0.3 amps up to 0.150” for 6.0 amps.
Shape – A trace can be laid out on a PCB layer in a horizontal or vertical direction, or at an angle (45 degrees). Right or acute angle turns are not recommended for trace widths of 0.012” or less. Try to keep the traces as short and direct as possible.
Spacing – Traces too close to each other or to other components could produce a risk of a potential short in the board during operation. While 0.003” can be a common minimum spacing between traces; recommended spacing for most trace widths should be at least 0.010”. Spacing for higher voltage traces should be larger.
What track width do you require for your next design
PCB trace width can be determined after considering several considerations including:
Purpose: power trace or signal trace ?
Amperage: or, current, through the trace.
Location: top or bottom layer, or, inner layer, where heat can’t escape as quickly.
Thickness: how thick is the copper on the layer ?
Length: how long is the trace ?
STD Practices
Width – In general, trace widths used to carry signal can be smaller than traces used to carry current. For a trace optimized for current a good range of widths might be from 0.010” for 0.3 amps up to 0.150” for 6.0 amps.
Shape – A trace can be laid out on a PCB layer in a horizontal or vertical direction, or at an angle (45 degrees). Right or acute angle turns are not recommended for trace widths of 0.012” or less. Try to keep the traces as short and direct as possible.
Spacing – Traces too close to each other or to other components could produce a risk of a potential short in the board during operation. While 0.003” can be a common minimum spacing between traces; recommended spacing for most trace widths should be at least 0.010”. Spacing for higher voltage traces should be larger.
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