Mill-Max Pre-Wired Spring-Loaded and Target Pins

Introduction

Mill-Max pre-wired spring-loaded and target pins are compact interconnect components designed to create reliable electrical connections where conventional fixed connectors may be impractical. These pogo-pin-style contacts are supplied with attached wire, simplifying integration into cable assemblies, charging systems, test fixtures, and compact electronic devices.

Part Description

The Mill-Max 809 and 819 series pre-wired pins include both spring-loaded contacts and mating target pins. They are intended for press-fit installation into a PCB, panel, housing, or fixture, providing a durable contact point without requiring direct soldering to the pin body.

Key characteristics include:

• Precision-machined, gold-plated contacts for low-resistance and corrosion-resistant connections
• Pre-attached UL1007 24 AWG wire for fast wiring and assembly
• Four-point wire crimp for dependable mechanical wire retention
• Spring-loaded pin options with up to 1.4 mm of travel
• Current handling up to 6.5 A for applicable spring-loaded versions
• Mechanical durability of up to 1 million cycles
• Available product codes:
  • 809-22-001-70-920011
  • 809-22-001-70-920012
  • 819-10-001-70-610011
  • 819-10-001-70-610012

The spring-loaded pins compensate for alignment variation, vibration, and changing contact pressure. Target pins provide a robust, fixed mating surface for repeated contact with the spring probe.

Applications

Potential applications include:

• Battery charging docks and charging cradles
• PCB test fixtures and functional test equipment
• Programming and firmware-download stations
• Pigtail-wired electronic devices
• Docking connectors for handheld equipment
• Magnetic or mechanical accessory attachments
• Panel-mounted power and signal contacts
• Replaceable modules and serviceable electronic assemblies
• Medical-device charging and docking interfaces
• Consumer electronics charging contacts
• Industrial sensor connections
• Automated test and inspection systems

Industries

These pins can be used across a range of industries, including:

• Consumer electronics
• Industrial automation
• Medical electronics
• Telecommunications
• Automotive electronics
• Aerospace and defense equipment
• Robotics
• Test and measurement
• Energy storage and battery systems
• Smart home and IoT devices
• Security and access-control equipment
• Educational and laboratory equipment

Usage Ideas

1. Custom Battery Charging Dock
   Install spring-loaded pins in a 3D-printed or machined charging cradle to deliver power to a portable battery-powered device through matching target pads or target pins.

2. Production Test Fixture
   Build a bed-of-nails-style fixture using multiple pre-wired spring pins to contact PCB test points for programming, power-up testing, and automated inspection.

3. Removable Sensor Module
   Create a replaceable environmental or motion sensor module that docks into an enclosure using spring-loaded pins for power, ground, and communication signals.

Conclusion

Mill-Max pre-wired spring-loaded and target pins provide a practical interconnect solution for applications requiring frequent mating, compact packaging, and dependable electrical contact. With gold-plated precision contacts, attached 24 AWG wire, substantial travel, and long mechanical life, these components are well suited for charging, testing, docking, and modular electronic designs.