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1 / 15 Technische Information / Application Recommendation solder Paste Series F 640 V_10_05 1. Specification of Heraeus solder paste series F 640 Alloy: Composition (%): (1) (2) (3) SnAg4 Other SAC on request Melting Point ( C) (1) 217 C (2) 217 C (3) 221 C Shape: Spherical Particle size ( m): 25-45 20-38 Type 3 Type 4 (on request) Density (g/cc): 7,4 Oxidation level (ppm): < 150 solder paste: Metal content (%): 88 1 By weight Viscosity (Pas): 130 40 Physica CSS 10 s-1 Copper plate corrosion: Pass J-STD-004 Silver Chromate Test: Pass J-STD-004 Copper Mirror Test: Pass J-STD-004 Shelf life (per month): Cartridges Minimum of 3 Jars Minimum of 6 2-10 C 2 / 15 2.
1 / 15 Technische Information / Application Recommendation Solder Paste Series F 640 V_10_05 1. Specification of Heraeus solder paste series F 640
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