TAMURA TLF-204-171AK Lead-free solder paste
TAMURA lead-free solder paste TLF-204-171AK Features:
- TLF-204-171AK is a lead-free (tin/silver/copper-based) solder alloy for clean-free lead-free solder paste.
- Spherical tin powder with little oxide and special flux are also refined, so the viscosity changes little with time during continuous printing and the printing quality is stable.
- Good wettability to parts and pads, and can effectively improve the solderability of BGA;
- TLF-204-171AK can work at high temperature and has excellent weldability.
- Even if the flux residue on the board is not removed, it has excellent reliability.
- Lead-free, which is of great help to the environment and workplace protection.
Tamura Tamura TTLF-204-171AK Lead-free Solder Paste Specifications:
| project |
trait（TLF-204-171AK） |
Experimental method |
| alloying component | Tin 96.5/ Silver 3.0/ Copper 0.5 |
JIS Z 3282(1999) |
|
melting point (℃) |
216～220℃ |
Using DSC detection |
|
Solder particle size (μm) |
20~38 μm |
Using laser light reflection method |
| Tin powder shape | sphericity |
JIS Z 3282 (19994) |
| Flux content |
11.5% |
JIS Z 3284(1994) |
| chlorinity |
0.0%(in flux) |
JIS Z 3197(1999) |
| viscosity |
170Pa.s |
JIS Z 3284(1994) Malcom PCU Type a viscometer 25℃ |
| Aqueous solution resistance test |
More than 1×104Ω.cm |
JIS Z 3197(1999) |
| Insulation resistance test |
More than 1×109Ω |
JIS Z 3284(1994), Type 2 substrate Reflow: heating by reflow oven. |
| Fluidity test | Below 0.20mm |
Solder paste was printed on a porcelain substrate with a thickness of 15. 0℃ for 60 seconds, from before and after solder heating. The width of the measured flow amplitude. STD-092b Note |
| Tin ball test | Almost Wuxi ball occurs. |
Printing the solder paste on the porcelain substrate, melting and adding. After heating, observe it with a 50 times microscope. STD-009e Note |
| Solder diffusion test |
More than 75% |
JIS Z 3197(1986) |
| Copper corrosion test | Non-corrosive situation |
JIS Z 3197(1986) |
Note Tamura test method (numerical value is not guaranteed value)
