M55-6004042R

Headers, Receptacles, Female Sockets Overview

The M55-6004042R is a vertical female board-to-board and mezzanine connector from the Harwin Archer Kontrol series. It features a 1.27 mm pitch with 40 positions arranged in two rows. The component utilizes surface mount technology (SMT) for termination and phosphor bronze contacts plated with gold. Rated for 1.2 A current and 100 VAC voltage, it operates within a temperature range of -55°C to +125°C. The housing is constructed from liquid crystal polymer (LCP) with UL 94 V-0 flammability rating.

Headers, Receptacles, Female Sockets Feature Summary

• Vertical SMT female receptacle design for direct board stacking
• Gold-plated phosphor bronze contacts ensure reliable signal transmission
• Liquid crystal polymer housing provides high thermal stability

Headers, Receptacles, Female Sockets Applications

• High-density board-to-board interconnects
• Mezzanine card connections
• Compact electronic module assembly

Headers, Receptacles, Female Sockets Procurement Notes

Verify the specific suffix codes against the official Harwin datasheet to confirm orientation, contact finish, and packaging type. Ensure compatibility with mating male headers regarding stack height and pin configuration. Cross-reference RoHS compliance status with current regulatory requirements before finalizing procurement orders.

Headers, Receptacles, Female Sockets Selection Notes

Select this component for applications requiring vertical mating with limited lateral space. Confirm that the system design accommodates the 1.27 mm pitch and 40-position width. Verify that the operating environment stays within the specified -55°C to +125°C range and does not exceed the 1.2 A current rating per contact.

Headers, Receptacles, Female Sockets Part Context

This part belongs to the M55 Archer Kontrol family, designed for high-reliability interconnect solutions. The series offers various pitch options and configurations to support diverse electronic packaging needs. The M55-6004042R specifically addresses vertical connection requirements within this modular ecosystem.

Headers, Receptacles, Female Sockets Replacement Considerations

Direct substitutes include other Harwin M55 series vertical female connectors with matching 1.27 mm pitch and 40 positions, such as M55-6002642R or M55-6006842R, provided stack height and mechanical constraints are compatible.