koki Leaded Solder Paste SE
Koki Leaded Solder Paste SE48-M956-2
- Superior workability, solderability and electrical reliability.
- Koki no-clean Leaded solder paste.
- Super Low Void Solder Paste.
Description
KOKI SE 48 Leaded Solder Paste SE48
- Koki SE48-M956-2 Outstanding continual and intermittent print-ability even with fine pitch pattern (0.4mm pitch, o.25mm∅) applications.
- Uses carefully classified solder powder with uniform particle size.
- Applicable for super fine pitch SMT.
- KOKI Leaded Blue Paste
Product Performance
Print-ability
Sharp Print Definition
Wettability
Excellent wetting
Voiding property (PwTr)
Conventional SE48-M956-2
Particle size definition
| Code | 48 | 58 |
| Particle size (µm) | 20 – 45 | 20 – 38 |
- older alloy composition is Sn37Pb
- Employment of rigidly classified 20-38 micron solder powder ensures outstanding continual printing with fine pitch (0.5mm/20mil) and even super fine pitch (0.4mm/16mil) application and long stencil idle time.
- Carefully selected flux chemistry ensures low voids formation.
- Extremely long stencil idle time and tack time offers a wide process window
- Low color flux residue offers superior cosmetic appearance.
- Conforms to Bellcore tests (Copper Mirror, Halides, Surface Insulation Resistance, Electro migration) GR-78-CORE, Issue 1.
| Application | Printing – Stencil | |
| Product | SE-48-M956-2 | |
| Alloy | Composition (%) | Sn63, Pb37 |
| Melting point (°C) | 183 | |
| Shape | Spherical | |
| Particle size (μm) | 20 – 45 | |
| Flux | Halide content (%) | 0.0 |
| Flux type | ROL0 | |
| Product | Flux content (%) | 10 ± 0.5 |
| Viscosity*1 (Pa.S) | 200 ± 10% | |
| Copper plate corrosion | Passed | |
| Tack time | > 48 hours | |
| Shelf life (below 10°C) | 6 months | |
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