**REMARQUE**
-
Il est suggéré de percer un trou à travers la carte pour la ventilation si aucun autre moyen n’est utilisé.
-
Snaptron recommande que la zone de circuit placée sous le dôme ne comporte pas de masque de soudure. La zone à accès interdit commence à l’angle extérieur de la pastille de circuit sur laquelle est placé le dôme et inclut la zone située à l’intérieur des pastilles.
Ce schéma représente une des nombreuses dispositions possibles. Snaptron fournit ces informations en vue d’aider les clients à assumer la responsabilité de la conception finale de l’implantation du circuit imprimé.
Dômes métriques
Diamètre | 6.3 mm | 7.0mm | 8.5mm | 12mm | 14mm |
---|---|---|---|---|---|
F1/F2 | 0.41mm (0.016″) | 0.60mm (0.024″) | 0.89mm (0.035″) | 0.89mm (0.035″) | 0.89mm (0.035″) |
N1 | 2.54mm (0.100″) | 2.81mm (0.111″) | 3.55mm (0.140″) | 5.17mm (0.204″) | 6.18mm (0.243″) |
N2 | 1.69mm (0.067″) | 1.92mm (0.076″) | 2.37mm (0.093″) | 3.55mm (0.140″) | 4.30mm (0.169″) |
N3 | 2.38mm (0.094″) | 2.62mm (0.103″) | 3.25mm (0.128″) | 4.42mm (0.174″) | 5.18mm (0.204″) |
P1 | 2.45mm (0.096″) | 2.86mm (0.113″) | 3.81mm (0.150″) | 4.93mm (0.194″) | 5.69mm (0.224″) |
P2 | 4.37mm (0.172″) | 6.03mm (0.237″) | 6.59mm (0.259″) | 10.18mm (0.401″) | 12.07mm (0.475″) |
P3 | 6.86mm (0.270″) | 7.91mm (0.311″) | 9.27mm (0.365″) | 13.27mm (0.522″) | 15.27mm (0.601″) |
W1 | 2.10mm (0.083″) | 2.23mm (0.088″) | 2.84mm (0.112″) | 3.82mm (0.150″) | 4.68mm (0.184″) |
SP | 0.64mm (0.025″) | 0.77mm (0.030″) | 0.76mm (0.030″) | 0.76mm (0.030″) | 0.76mm (0.030″) |
Diamètre | 6.3mm | 7.0mm | 8.5mm | 12mm | 14mm |
---|---|---|---|---|---|
SP1 | 2.38mm (0.094″) | 2.62mm (0.103″) | 3.25mm (0.128″) | 4.42mm (0.174″) | 5.18mm (0.204″) |
SP2 | 1.69mm (0.067″) | 1.92mm (0.076″) | 2.37mm (0.093″) | 3.55mm (0.140″) | 4.30mm (0.169″) |
SP3 | 0.68mm (0.027″) | 0.79mm (0.031″) | 0.84mm (0.033″) | 0.94mm (0.037″) | 1.04mm (0.041″) |
SP4 | 1.14mm (0.045″) | 1.19mm (0.047″) | 1.45mm (0.057″) | 1.49mm (0.059″) | 1.54mm (0.061″) |
SP5 | 0.15mm (0.006″) | 0.15mm (0.006″) | 0.15mm (0.006″) | 0.25mm (0.010″) | 0.25mm (0.010″) |