"A"
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"E",
"F",
"G",
"H",
"I",
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"L",
"M",
"N",
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"U",
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"X",
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"Z"
Minimum Annular Ring - Pad Shape
The minimum annular ring on a plated thur-hole is the minimum amount of copper between the hole and the edge of the pad after plating of the finished hole regardless of the pad shape.
Minimum Annular Ring; Elongated PCB Pad
Minimum Annular Ring; Shaved PWB Pad
Main page for Minimum Annular Ring.
More Printed Wiring Board Information and specifications
MIL-STD-275E - Printed Wiring for Electronic Equipment
