The 

Sunshine SS-007E Silver Jumper Wire

 is an ultra-fine, uninsulated silver wire designed for high-precision electronic repairs. Measuring as thin as 0.009mm (though some listings specify 0.007mm), it is primarily used for reconstructing broken circuits and flying lines on mobile phone motherboards, particularly for iPhone fingerprint sensors and CPU chips.

Key Specifications

• Diameter: 0.009mm (caliber specified in some technical data) or 0.007mm depending on the specific spool variant.
• Material: High-quality tin-silver alloy or silver-plated copper.
• Length: Each spool typically contains 200 meters of wire.
• Insulation: Uninsulated (bare); it does not have a protective coating and is highly conductive immediately upon contact.
• Handling: Designed to be easy to straighten and manipulate with precision tweezers.

• Core Features & Usage

• Exceptional Conductivity: The silver-based material ensures low resistance and minimal signal loss, which is critical for delicate electronic traces.
• Micro-Soldering Precision: Its hair-thin diameter allows for point-to-point welding on densely packed PCBs where standard wires would cause shorts.
• Application Range: Specifically engineered for fixing iPhone fingerprint sensors, logic board track repairs, and CPU chip breakpoints.
• Fragility Note: Due to its extreme thinness, technicians recommend handling it carefully with sharp tweezers to avoid accidental breakage.