TAMURA ULF-250 scaling powder
Brief introduction of characteristics of TAMURA Tamura ULF-250 flux;
- After welding, the residual color of flux is very light and close to transparency.
- Because the flux residue is very small, it will not cause defects such as Checker Pin.
- Although this product is a product with low solid content, it will not be welded on parts such as QFP and small patch basically, and it has good wettability to the welding pad and excellent operability.
TAMURA Tamura ULF-250 flux specification parameters:
| name of an article | ULF-250 | test method |
| hue | Pale yellow transparent liquid | estimate range by eye |
| proportion (20℃) | 0.801 | JIS Z 3197(1986) |
| viscosity (mPa·s) | 3 | JIS Z 3197(1986) |
| Solid content (%) | 5 | 100℃、1h |
| Halogen content (%) | 0.0 | JIS Z 3197(1986) |
|
Solder diffusivity (%) |
88 | JIS Z 3197(1986) |
| Corrosiveness of residue | qualified | JIS Z 3197(1986) |
