Vivanco 10-100MB FAST ETHERNET SWITCH 5 PORTS - PROGRAMMING Especificaciones Pagina 81

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EXAMPLE STENCIL DESIGN
40X (0.6)
40X (0.25)
36X (0.5)
(5.8)
(5.8)
9X ( 1.28)
(1.48)
TYP
(R ) TYP0.05
(1.48) TYP
WQFN - 0.8 mm max heightRTA0040A
PLASTIC QUAD FLATPACK - NO LEAD
4214989/A 12/2014
NOTES: (continued)
5. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate
design recommendations.
SYMM
METAL
TYP
SOLDER PASTE EXAMPLE
BASED ON 0.125 mm THICK STENCIL
EXPOSED PAD
70% PRINTED SOLDER COVERAGE BY AREA
SCALE:15X
SYMM
1
10
11
20
21
30
31
40
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