399-91-021-21-300000

Headers, Receptacles, Female Sockets Overview

The Mill-Max 399-91-021-21-300000 is a board-to-board female socket connector from the 399 series. It features a 21-position configuration with a 0.100-inch (2.54mm) pitch. The component utilizes through-hole mounting and is designed for reliable electrical interconnection in rigorous environments.

Headers, Receptacles, Female Sockets Feature Summary

• Provides stable electrical contact via precision-machined spring-loaded technology
• Supports high-reliability connections suitable for demanding operational conditions

Headers, Receptacles, Female Sockets Applications

• Board-to-board interconnections
• Test and measurement equipment interfaces
• High-reliability electronic assemblies

Headers, Receptacles, Female Sockets Procurement Notes

Verify the specific part number against official Mill-Max documentation to confirm pin count, pitch, and termination type. Ensure compatibility with mating spring targets or pogo pins. Check RoHS compliance status and moisture sensitivity levels prior to procurement.

Headers, Receptacles, Female Sockets Selection Notes

Select this component when a robust, high-cycle life connector is required for board-to-board applications. Consider the 21-position layout and 2.54mm spacing requirements. Verify that the operating temperature range and current ratings meet the system specifications.

Headers, Receptacles, Female Sockets Part Context

This connector belongs to the Mill-Max 399 series of individual spring-loaded contacts and test probes. The series is recognized for providing reliable electrical connections in rigorous environments, offering high durability and consistent performance for precision interconnect needs.

Headers, Receptacles, Female Sockets Replacement Considerations

Consult official Mill-Max catalogs for direct substitutes within the 399 series. Verify identical pin counts, pitch dimensions, and mounting configurations before considering alternative part numbers.