SM-388
3Pages

Lead-free Solder Paste SM-388 ■ High activity on all substrates including OSP-boards ■ High printing speeds up to 150 mm/s ■ Stable wetting behavior over a wide range of profiles ■ Stencil life of up to 8 hours under proper process parameters Physical Properties Data given for Sn96.5Ag3Cu0.5, metal 87.5 %, particle size 3, 25-45 pm Viscosity: 600 - 700 Pa s IPC-TM-650 2.4.34 ■ Very good tack time of up to 16 hours ■ J-STD-004 Flux classification: REL0 ■ Very good printing characteristics to 0.4 mm pitch with type 3 powder ■ Very good slump characteristics Reliability Properties Data given for Sn96.5Ag3Cu0.5, metal 87.5 % particle size 3, 25-45 pm Copper Mirror Corrosion: Class L J-STD-004, IPC-TM-650, Method 2.3.32 Silver Chromate Test: Pass J-STD-004, IPC-TM-650, Method 2.3.33 Solder Balling Test: Class 1 J-STD-005, IPC-TM-650, Method 2.4.43 Insulation Resistance: 2.0x10s O after 168 hours of humidity exposure, IPC-TM-650 2.6.3.3 Details see Page 2 SM-388 solder paste can be applied by dispensing, stencil or screen-printing. As a general guide, the following metal loading and viscosity ranges for each type of application method are available. Other particle sizes and alloys are available on request. TAMURA ELSOLD GmbH www.tamura-elsold.de HuttenstraKe 1 ■ D-38871 llsenburg Phone +49 (0)39452 4879-11 ■ Fax: -66 info@tamura-elsold.de

Lead-free Solder Paste SM-388 Melting point/ -range [°C] Metal content for screen / stencil printing [%] Metal content for dispensing [%] Cleaning SM-388 solder paste is a no clean formula. The residues do not need to be removed. Although SM-388 is a no clean formula, its residues can be easily removed using automated cleaning equipment with a variety of commercially available cleaning agents. Cassettes: DEK ProFlow cassette 750 g Syringes: 10 cc (35 g) and 30cc (100 g) Storage and Shelf Life Jars/Cartridges: Maximum 6 months in a sealed jar, kept under standard refrigeration between 6 - 16...

Lead-free Solder Paste SM-388 Tested @ 50 V, humidity 85 %, temperature 85 °C Duration: 24 hrs, 96 hrs, 168 hrs: bias applied Reading @ 100 V, humidity 85 %, temperature 85 °C All readings are in 0 Comment: after 7 days or 168 hours total test time, SM-388 passed. The information contained herein is based on technical data that we believe to be reliable and is intended for use by persons having technical skill, at their own risk. Users of our products should make their own tests to determine the suitability of each product for their particular process. TAMURA ELSOLD will assume no liability...