399-91-025-21-300000

Headers, Receptacles, Female Sockets Overview

The Mill-Max Manufacturing Corp. model 399-91-025-21-300000 is a spring-loaded pogo pin contact designed for through-hole or solder cup mounting. It features a sleeve and plunger configuration with a brass alloy construction and gold contact finish. The component operates within a temperature range of -55°C to 125°C, supporting an initial operating force of 5gf and a medium pressure of 60gf. It accepts a pin diameter of 0.019 inches (0.48mm) and provides a rated current capacity of 6.4A with a durability rating of 1,000,000 cycles.

Headers, Receptacles, Female Sockets Feature Summary

• Spring-loaded pogo pin design ensures reliable electrical connections in rigorous environments
• Gold-plated contacts provide corrosion resistance and stable conductivity
• Brass alloy construction supports high-cycle durability up to one million operations

Headers, Receptacles, Female Sockets Applications

• Board-to-board testing and burn-in fixtures
• In-circuit programming and debugging interfaces
• High-reliability interconnect applications requiring frequent mating cycles

Headers, Receptacles, Female Sockets Procurement Notes

Verify the specific contact finish thickness and operating force requirements against the official datasheet before procurement. Confirm that the through-hole or solder cup mounting method aligns with the target PCB layout. Ensure the accepted pin diameter matches the mating connector specifications to guarantee proper mechanical engagement and electrical performance.

Headers, Receptacles, Female Sockets Selection Notes

Select this component when high cycle life and consistent contact pressure are required for test points or temporary connections. Consider the 6.4A current rating and 1,000,000 cycle durability for demanding applications. Evaluate the -55°C to 125°C operating temperature range to ensure suitability for the intended environmental conditions.

Headers, Receptacles, Female Sockets Part Context

This part belongs to the Mill-Max 399 series of individual spring-loaded contacts. These components are engineered for precision-machined interconnect solutions, offering vertical or angled mounting options. The series is recognized for providing robust performance in space-constrained designs where standard connectors cannot accommodate frequent insertion and removal cycles.

Headers, Receptacles, Female Sockets Replacement Considerations

Consult the official Mill-Max catalog for direct substitutes within the 399 series. Verify compatibility regarding mounting type, contact geometry, and electrical ratings before substituting.