399-41-021-21-300000

Headers, Receptacles, Female Sockets Overview

The Mill-Max 399-41-021-21-300000 is a spring-loaded pogo pin contact designed for through-hole or solder cup mounting. It features a brass alloy construction with gold plating to ensure reliable electrical connections in rigorous environments. The component has a sleeve and plunger contact type, rated for 6.4A current. Key dimensions include a 0.019-inch (0.48mm) diameter plunger and an overall maximum height of 0.362 inches. It operates within a temperature range of -55°C to 125°C and supports up to one million mating cycles.

Headers, Receptacles, Female Sockets Feature Summary

• Provides reliable electrical connection in rigorous environments
• Features a sleeve and plunger pogo pin design
• Utilizes gold-plated brass alloy contacts
• Supports high-cycle durability up to one million operations

Headers, Receptacles, Female Sockets Applications

• Board-to-board testing fixtures
• Burn-in boards and sockets
• Automated test equipment interfaces
• Production test jigs

Headers, Receptacles, Female Sockets Procurement Notes

Verify the specific ordering suffix matches the required tip style and length configuration. Confirm that the gold plating thickness meets the application's conductivity requirements. Ensure the through-hole or solder cup mounting method aligns with the PCB layout. Check RoHS compliance status if restricted substances are prohibited in the final assembly process.

Headers, Receptacles, Female Sockets Selection Notes

Select this component when high-cycle reliability and low contact resistance are critical. The gold finish offers superior corrosion resistance compared to tin. Consider the 6.4A current rating for power signal applications. Evaluate the mechanical operating force specifications against the mating device's insertion requirements to ensure proper engagement without damage.

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 interconnect applications requiring repeated mating cycles. The series is recognized for maintaining consistent performance under vibration and thermal stress conditions common in industrial and testing hardware.

Headers, Receptacles, Female Sockets Replacement Considerations

Direct substitutes must match the 0.019-inch plunger diameter and 0.362-inch max height. Verify identical current ratings and gold plating specifications. Ensure the mounting style (through-hole/solder cup) is compatible with the existing footprint.

Headers, Receptacles, Female Sockets FAQ

What is the rated mating cycle life for this component?

The component is rated for up to one million mating cycles.

What is the maximum operating temperature range?

The operational temperature range is from -55°C to 125°C.