Obsolete Status and Sourcing Reality
The 3-535542-9: This part carries an Obsolete lifecycle status from TE Connectivity. Sourcing is through independent distribution channels — quantities are confirmed per RFQ, and availability is lot-specific. The base product number 535542 may help locate functionally similar variants in the same series, but a direct pin-compatible drop-in replacement is not guaranteed.
The contact finish on the post is tin-lead (150.0 µinch), which wets well during wave soldering. Insulation height of 0.265" (6.73 mm) and a black glass-filled polyester housing provide the standoff and flame rating for populated boards.
