For bifurcated terminals, there are 3 connection ways per IPC 620.
1, Side Route Attachments
2, Bottom attachments
3, Top attachments
Today, we will introduce the spec of bottom and top attachments.
Target - Class 1,2,3
• Wire insulation does not enter base or posts of terminal.
• Bottom route wire wrap contacts two parallel sides of post
(180°).
• Wire is against base of terminal.
• Top route wire has space between posts filled by using
separate filler or bending the wire double (Figure 4-23 B, C).
Acceptable - Class 1
Process Indicator - Class 2
Defect - Class 3
• Wire insulation enters base or posts of terminal.
• Top route wire is not supported with filler.
• Bottom route wire not wrapped to terminal base or post with
a minimum 90° bend.
