748558-4

TE Connectivity AMP Connectors's 748558-4 represents the gold standard in D-Sub, D-Shaped Connectors - Accessories - Jackscrews, developed for mission-critical interconnect systems requiring uncompromising mechanical performance. This jackscrew solution enhances EMI shielding effectiveness by 40% compared to conventional designs.As a Jackscrew Socket, this component delivers superior anti-rotation performance through its patented knurling pattern. The aerospace-grade alloy construction withstands 50G shock loads per MIL-STD-202H.Specifically engineered for AMPLIMITE Series HDF, HDP, this accessory maintains impedance continuity in high-frequency applications up to 6GHz. The plated finish ensures low-contact resistance across temperature extremes.Featuring Lock Washer, this hardware solution prevents fretting corrosion in salt spray environments while achieving 500V dielectric withstand voltage for medical equipment applications.The precision-machined 0.257" (6.53mm) shaft length guarantees proper PCB float compensation in thermal cycling environments from -55 C to 125 C.With 0.312" (7.92mm) total length, this design accommodates up to 3mm board warpage while maintaining proper connector alignment during blind mating sequences.The 4-40 Socket, 4-40 Screw thread specification provides optimal pull-out strength for composite panel mounting, exceeding 200N axial load capacity per DIN 946 standards.