SOLDER WIRE -TDS Sn63Pb37 1.0MM Flux 2%-1 core

This document covers a single‑core Solder Wire with Sn63/Pb37 alloy, 1.0 mm diameter and 2 % Flux Content.

Physical Inspection

Appearance: Bright and smooth, tested compliant.

Diameter: Nominal 1.0 mm with tolerance ±0.05 mm, tested compliant.

Chemical & Functional Performance

Bromine content: 0.031 %; Chlorine content: 0 %.

Spreadability: Above 85 %.

Dryness: Chalk powder on samples can be easily removed, meeting requirements.

Surface Insulation Resistance (SIR): Greater than 1×10⁸ Ω.

Corrosion test: Non‑corrosive.

Flux weight percentage: 2±0.3 %, within specification.

Applicable working temperature range: 280‑330 °C.

Alloy Composition

Nominal alloy composition: Tin 63±1 wt%, lead as balance.

Maximum allowable impurity limits (wt%):

Zn ≤0.002, Ag ≤0.1, Al ≤0.002, As ≤0.02, Bi ≤0.03, Cd ≤0.002, Cu ≤0.03, Fe ≤0.02, Ni ≤0.01, Sb ≤0.1.

Measured tin content is 62.57 wt%. All impurity items pass inspection.

All test items of this solder wire have obtained passing results.