The Razor Beam™ ST4 series is a rectangular connector that has 80 positions and a pitch of 0.016" (0.40mm). It is a board-to-board connector that has a height above board of 0.180" (4.57mm) and a mated stacking height of 5.5mm and 6mm.

• Positions: 80
• Pitch: 0.016" (0.40mm)
• Connector Type: Board-to-board
• Height Above Board: 0.180" (4.57mm)
• Mated Stacking Height: 5.5mm and 6mm
• Connector Type: Header with center strip contacts
• Package: Tape & reel
• Contact Finish: Gold
• Contact Finish Thickness: 10.0µin (0.25µm)
• Model: ST4-40-2.50-L-D-P-TR
• Mounting Type: Surface mount device
• Application: Arrays, edge type, and mezzanine (board to board)
• Manufacturer: Samtec Inc.