HDASE077YD-000LF

Overview

The HDASE077YD-000LF is a 77-position PCB receptacle connector from the Amphenol HDAS series. It features a three-row female socket configuration with a 1.91 mm (0.075 inch) pitch and identical row spacing, ensuring a compact footprint. The unit supports 750V voltage and 4.5A current ratings. Constructed with gold-plated copper alloy contacts and glass-filled thermotropic liquid crystal polymer (LCP) housing, it operates within a temperature range of -65°C to 125°C. Designed for board-to-board connections via through-hole solder termination, this component meets MIL-DTL-55302 standards for harsh environments.

Feature Summary

• Utilizes star-clamp technology in sockets and side rails on male counterparts for optimal contact protection against external damage.
• Employing cylindrical machined pins and LCP materials to withstand high temperatures, vibration, and lead-free soldering processes.
• Provides high-density interconnect capability with reduced spacing, suitable for applications requiring cost-effective reliability.

Applications

• Aerospace and military connection challenges
• Mission-critical systems in harsh environments
• High-vibration industrial installations

Procurement Notes

Verify the specific manufacturer designation, as the model appears under both Amphenol Socapex and Amphenol Aerospace Operations listings. Confirm that the 'LF' suffix indicates lead-free compliance without altering functional characteristics. Ensure the procurement channel provides official datasheets matching the 77-position, three-row specification. Cross-reference the part number with authorized distributors to avoid counterfeit components, particularly given the presence of conflicting stock data across different platforms.

Selection Notes

Select this component when space constraints require a high-density 77-pin interface with a 1.91 mm pitch. It is appropriate for board-to-board applications needing robust performance in extreme temperatures up to 125°C. The through-hole mounting style suits rigid PCB designs. Consider the 750V rating for relevant electrical isolation requirements. Ensure mating connectors utilize compatible side rail protection mechanisms to maintain signal integrity during insertion.

Part Context

This receptacle belongs to the HDAS series, designed for high-performance PCB interconnects. The series emphasizes reliability in extreme conditions, exceeding standard MIL-DTL-55302 requirements. The design focuses on reducing spacing while increasing contact density, addressing installation costs and reliability concerns. The use of LCP ensures compatibility with various soldering types, including high-temperature processes required for modern assembly lines.

Replacement Considerations

HDASF077YC-000 is listed as a similar product with identical pin count and pitch but may differ in housing coverage or specific mechanical tolerances. Verify mating compatibility before substitution. No other direct substitute part numbers are confirmed in public documentation.