399-91-007-21-300000

Headers, Receptacles, Female Sockets Overview

The Mill-Max 399-91-007-21-300000 is a spring-loaded target connector designed for board-to-board or probe-to-board mating applications. It features a right-angle through-hole mounting configuration with a single row of contacts. The unit provides seven positions with a standard 0.100-inch (2.54mm) pitch. Contacts are constructed from brass alloy and finished with gold plating to ensure reliable signal transmission in high-cycle environments.

Headers, Receptacles, Female Sockets Feature Summary

• Spring-loaded contact mechanism for zero-insertion-force mating
• Right-angle orientation for compact PCB layout integration
• Gold-plated contacts for corrosion resistance and low contact impedance

Headers, Receptacles, Female Sockets Applications

• In-circuit testing and burn-in fixtures
• Board-to-board interconnects requiring frequent mating cycles
• Automated test equipment probe cards

Headers, Receptacles, Female Sockets Procurement Notes

Verify the specific ordering suffix to confirm contact finish thickness and plating material, as these parameters vary within the series. Confirm that the right-angle through-hole package matches the target PCB footprint and hole size specifications before finalizing procurement orders.

Headers, Receptacles, Female Sockets Selection Notes

Select this component when a low-profile, right-angle connection is required for spring pin mating. Ensure the operating environment temperature range aligns with the standard industrial ratings. Verify that the target current requirements do not exceed the rated capacity of the individual contact elements.

Headers, Receptacles, Female Sockets Part Context

This part belongs to the Mill-Max 399 series, which specializes in spring-loaded targets and connectors. The series is widely utilized in electronic manufacturing and testing sectors where reliable, repeatable electrical connections are critical for quality assurance and functional verification processes.

Headers, Receptacles, Female Sockets Replacement Considerations

Consult the official Mill-Max cross-reference tool for parametrically similar parts. Substitutes must match the 0.100-inch pitch, seven-position count, and right-angle through-hole mounting style to maintain mechanical compatibility.