HDASF253YD-000

Overview

The HDASF253YD-000 is a rectangular MIL-spec connector from the Amphenol HDAS series, designed for high-density interconnect applications. It features 253 positions arranged in five rows with a 1.905 mm pitch. The component utilizes gold-plated copper alloy sockets and a liquid crystal polymer (LCP) housing. Rated for 4.5 A current and 750 V voltage, it operates within a temperature range of -65°C to +150°C. Insulation resistance exceeds 5 GOhms. This straight PCB mount connector complies with MIL-DTL-55302G standards.

Feature Summary

• High-density 253-position configuration in a compact five-row layout
• Gold-plated contacts ensure reliable signal transmission
• Liquid crystal polymer housing provides thermal stability
• Compliance with strict military specification standards

Applications

• Harsh environment defense systems
• Commercial aerospace avionics
• Industrial control panels
• Data communication infrastructure

Procurement Notes

Verify the manufacturer designation carefully, as sources list both Amphenol Socapex and Amphenol Aerospace Operations for this part number. Confirm RoHS compliance status directly with the supplier documentation. Ensure the specific ordering suffix matches the required tail length and mounting style. Request official datasheets to validate electrical ratings against system requirements before finalizing procurement orders.

Selection Notes

Select this connector when high pin count density is required in a rectangular form factor. The 1.905 mm pitch allows for significant I/O in constrained spaces. Verify that the PCB layout supports the solder termination type. Consider the operating temperature range if the application involves extreme environmental conditions. Ensure mating connectors match the socket contact type and row configuration.

Part Context

This component belongs to the HDAS series of rectangular MIL-spec connectors. The series is known for robust performance in demanding environments. Amphenol manufactures these connectors using advanced materials like LCP for improved thermal resistance. The design supports both board-to-board and cable connections depending on the specific variant.

Replacement Considerations

The part number alias 169-164738-00 may serve as an equivalent identifier. Cross-reference mechanical dimensions and electrical ratings with potential substitutes. Ensure any replacement maintains the same 253-position count and five-row arrangement. Verify compatibility with existing PCB footprints and mating hardware.