Keysight Technologies 11904S User's And Service Manual

Keysight Technologies 11904S User's And Service Manual Manual pdf 19 page image

Specifications 2Keysight 11904S User’s and Service Guide 19Mechanical CharacteristicsMechanical characteristics such as center conductor protrusion and pin depth are not performancespecifications. They are, however, important supplemental characteristics related to electricalperformance. Keysight Technologies verifies the mechanical characteristics of the devices in the kitwith special gaging processes and electrical testing.This ensures that the device connectors do not exhibit any center conductor protrusion or improperpin depth when the kit leaves the factory.“Gaging Connectors” on page 32 explains how to use gages to determine if the kit devices havemaintained their mechanical integrity. Refer to Table 2-2 for typical and observed pin depth limits.Pin depthPin depth is the distance the center conductor mating plane differs from being flush with the outerconductor mating plane. See Figure 2-1. The pin depth of a connector can be in one of two states:either protruding or recessed.Protrusion is the condition in which the center conductor extends beyond the outer conductormating plane. This condition will indicate a positive value on the connector gage.Recession is the condition in which the center conductor is set back from the outer conductormating plane. This condition will indicate a negative value on the connector gage.Figure 2-1 Connector pin depthThe pin depth value of each calibration device in the kit is not specified, but is an importantmechanical parameter. The electrical performance of the device depends, to some extent, on itspin depth. The electrical specifications for each device in the kit take into account the effect of pindepth on the device’s performance. Table 2-2 lists the typical pin depths and measurementuncertainties, and provides observed pin depth limits for the devices in the kit. If the pin depth of adevice does not measure within the observed pin depth limits, it may be an indication that thedevice fails to meet electrical specifications. Refer to Figure 2-1 for a visual representation ofproper pin depth (slightly recessed).