(1) Kab
Feem ntau, lub teeb liab kab dav yog 0.3mm (12mil), lub hwj chim kab dav yog 0.77mm (30mil) los yog 1.27mm (50mil); qhov kev ncua deb ntawm kab thiab kab thiab lub ncoo yog ntau dua los yog sib npaug rau 0.33mm (13mil) ). Hauv kev siv cov tswv yim, nce qhov kev ncua deb thaum muaj xwm txheej tso cai;
Thaum lub nthe ntom ntom yog siab, ob txoj kab yuav txiav txim siab (tab sis tsis pom zoo) siv IC pins. Txoj kab dav yog 0.254mm (10mil), thiab kab sib nrug tsis tsawg dua 0.254mm (10mil). Nyob rau hauv cov xwm txheej tshwj xeeb, thaum lub cuab yeej pins yog ntom thiab qhov dav yog nqaim, txoj kab dav thiab kab sib nrug yuav raug txo kom tsim nyog.
(2) Pad (PAD)
Cov kev cai yooj yim rau cov ntaub qhwv (PAD) thiab qhov hloov pauv (VIA) yog: txoj kab uas hla ntawm lub disk yog ntau dua li txoj kab uas hla ntawm lub qhov los ntawm 0.6 hli; Piv txwv li, lub hom phiaj tus pin resistors, capacitors, thiab kev sib txuas sib txuas, thiab lwm yam, siv lub disk / qhov loj ntawm 1.6mm / 0.8 mm (63mil / 32mil), sockets, pins thiab diodes 1N4007, thiab lwm yam., txais yuav 1.8mm / 1.0 hli (71mil / 39mil). Hauv kev siv tiag tiag, nws yuav tsum tau txiav txim siab raws li qhov loj ntawm cov khoom siv tiag tiag. Yog tias muaj kev tso cai, lub ncoo loj tuaj yeem tsim nyog ntxiv;
Cov tivthaiv mounting aperture tsim rau ntawm PCB yuav tsum yog li ntawm 0.2 ~ 0.4mm (8-16mil) loj dua qhov loj ntawm cov khoom siv tus pin.
(3) Via (VIA)
Feem ntau 1.27mm / 0.7mm (50mil / 28mil);
Thaum lub nthe ntom ntom yog qhov siab, ntawm qhov loj tuaj yeem raug txo qis, tab sis nws yuav tsum tsis txhob me me. Xav txog kev siv 1.0mm / 0.6mm (40mil / 24mil).

(4) Pitch xav tau rau cov ntaub qhwv, kab, thiab vias
PAD thiab VIA: ≥ 0.3mm (12mil)
PAD thiab PAD: ≥ 0.3mm (12mil)
PAD thiab TRACK: ≥ 0.3mm (12mil)
TRACK thiab TRACK: ≥ 0.3mm (12mil)
Thaum siab dua:
PAD thiab VIA: ≥ 0.254mm (10mil)
PAD thiab PAD: ≥ 0.254mm (10mil)
PAD thiab TRACK: ≥ 0.254mm (10mil)
TRACK thiab TRACK: ≥ 0.254mm (10mil)