TAMURA RMA-20-21A Lead-tin paste
Brief introduction to the characteristics of lead-tin paste in RMA-20-21A of TAMURA Tamura;
- Good welding performance, showing excellent wettability for various parts.
- Viscosity hardly changes with the passage of time.
- The viscosity will not change with time during continuous printing, and it has good stability.
- It also shows good welding performance on tiny parts with a spacing of 0.3 mm.
TAMURA Tamura RMA-20-21A has lead-tin paste specifications:
| name of an article | RMA-20-21A | test method |
| Alloy composition (%) | Sn62.8/Pb36.8/Ag0.4 | JIS Z 3282(1986) |
| Melting point (℃) | 179~183 | DSC determination |
| Solder particle size (μm) | 20~38 | Laser analysis |
| Tin powder shape | sphericity | JIS Z 3284(1994) |
| Flux content (%) | 9.8 | JIS Z 3284(1994) |
| Halogen content (%) | 0.0 | JIS Z 3197(1994) |
| Viscosity (Pa·s) | 185 | JIS Z 3284(1994) |
