640457-4 – TYCO ELECTRONICS

Overview

The TE Connectivity AMP Connectors 640457-4 is a 4-position, 2.54mm pitch right-angle header designed for robust board-to-wire interconnectivity. Its primary function is to provide a reliable mechanical and electrical interface for signal and low-power applications. A critical design consideration is the choice of tin plating on the copper alloy contacts; while cost-effective and offering adequate conductivity for general-purpose use, engineers must account for its potential for fretting corrosion in high-vibration environments, which can degrade contact resistance over time.

Key Features

• 4 Positions
• 2.54mm (0.100″) Pitch
• Through Hole, Right Angle Mounting
• Shrouded – 1 Wall Design
• Solder Termination
• Operating Temperature: -55°C to 105°C

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

• Signal routing in industrial control panels
• Power distribution for LED lighting modules
• Interfacing sensors in automotive electronics
• Wire termination for consumer appliance control boards