Surface Mounting Guide
MLC Chip Capacitors
Component Pad Design
Component pads should be designed to achieve good sol-
der filets and minimize component movement during reflow
soldering. Pad designs are given below for the most com-
mon sizes of multilayer ceramic capacitors for both wave
and reflow soldering. The basis of these designs is:
• Pad width equal to component width. It is permissible to
decrease this to as low as 85% of component width but it
is not advisable to go below this.
• Pad overlap 0.5mm beneath component.
• Pad extension 0.5mm beyond components for reflow and
1.0mm for wave soldering.
REFLOW SOLDERING
Case Size
0402
0603
0805
1206
1210
1808
1812
1825
2220
2225
D1
1.70 (0.07)
2.30 (0.09)
3.00 (0.12)
4.00 (0.16)
4.00 (0.16)
5.60 (0.22)
5.60 (0.22)
5.60 (0.22)
6.60 (0.26)
6.60 (0.26)
D2
0.60 (0.02)
0.80 (0.03)
1.00 (0.04)
1.00 (0.04)
1.00 (0.04)
1.00 (0.04)
1.00 (0.04))
1.00 (0.04)
1.00 (0.04)
1.00 (0.04)
D3
0.50 (0.02)
0.70 (0.03)
1.00 (0.04)
2.00 (0.09)
2.00 (0.09)
3.60 (0.14)
3.60 (0.14)
3.60 (0.14)
4.60 (0.18)
4.60 (0.18)
D4
0.60 (0.02)
0.80 (0.03)
1.00 (0.04)
1.00 (0.04)
1.00 (0.04)
1.00 (0.04)
1.00 (0.04)
1.00 (0.04)
1.00 (0.04)
1.00 (0.04)
D5
0.50 (0.02)
0.75 (0.03)
1.25 (0.05)
1.60 (0.06)
2.50 (0.10)
2.00 (0.08)
3.00 (0.12)
6.35 (0.25)
5.00 (0.20)
6.35 (0.25)
D2
D1
D3
D4
D5
Dimensions in millimeters (inches)
41
ETC [ ETC ]
