High frequency impedance of CuBe solid pins used for fast computer connectors

High frequency characteristics and mechanical properties of CuBe alloy pins are evaluated to meet the fast computer connector requirements. A new jig to measure the 1 MHz-1 GHz impedance of the pins is developed. The inductance and the cross-talk for CuBe pins were similar to those of phosphor bronze pins because both are non-magnetic materials. The feature of CuBe alloy pins are low ac resistance and good mechanical deflection properties in the case of short pins which is desirable for miniaturized connector development.