How does the operating temperature range of a connector affect its applications?

The operating temperature range directly determines where a connector can be used, how stable it will perform, and whether it may fail under real-world conditions.

1. Low-temperature conditions

• Plastic materials become brittle and lose elasticity
• Contact force decreases, leading to higher contact resistance
• Increased risk of poor contact, cracking, or breakage during insertion and removal

2. High-temperature conditions

• Plastic housing may soften, deform, melt, or even catch fire
• Metal contact plating oxidizes faster, causing a sharp rise in contact resistance
• Heat buildup creates a self-reinforcing cycle, significantly shortening service life

3. Temperature cycling and thermal shock

• Different thermal expansion rates between materials can cause loosening or intermittent contact
• Accelerates material aging and reduces overall reliability
• This is a common failure factor in automotive, industrial control, and outdoor applications