PPGA - Plastic Pin Grid Array

                

The Plastic Pin Grid Array, or PPGA, is a square-shaped plastic package whose pins or leads are arranged in a square array at the bottom of the package body. The PPGA is just one of several types of the PGA package. Because of the array arrangement of the leads in a PGA package, it can provide much higher lead counts than other packages.  This is the reason why the PGA is a popular choice for devices with high I/O counts such as microprocessors. 

   

Typical PPGA's have pin counts that range from 68 to 503, although PPGA's with more pins do exist. The pins in a PPGA are usually spaced 100 mils (approx. 2.5 mm) or 50 mils (1.25 mm) apart.

  

The PPGA can either be directly soldered onto a through-hole PCB or used with a PGA socket.
      

Table 1. Properties of Some PPGA's

No. of Pins

Body Size

Body Thickness

Pad Pitch

68

28.2 mm x 28.2 mm

3 mm

2.5 mm

120

35.1 mm x 35.1 mm

3 mm

2.5 mm

156

42.7 mm x 42.7 mm

3 mm

2.5 mm

296

49.5 mm x 49.5 mm

3 mm

2.5 mm

411

52.8 mm x 52.8 mm

3 mm

2.5 mm

503

57.9 mm x 57.9 mm

3 mm

2.5 mm

   

Figure 1.  Example of the PPGA

   

See more IC Package Types

 

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