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TFBS4650-TR3 Datasheet(PDF) 8 Page - Vishay Siliconix |
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TFBS4650-TR3 Datasheet(HTML) 8 Page - Vishay Siliconix |
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8 / 13 page  TFBS4650 Document Number 84672 Rev. 1.1, 03-Jul-06 Vishay Semiconductors www.vishay.com 127 Recommended Solder Profiles Solder Profile for Sn/Pb soldering Lead (Pb)-Free, Recommended Solder Profile The TFBS4650 is a lead (Pb)-free transceiver and qualified for lead (Pb)-free processing. For lead (Pb)-free solder paste like Sn(3.0-4.0)Ag(0.5-0.9)Cu, there are two standard reflow profiles: Ramp-Soak- Spike (RSS) and Ramp-To-Spike (RTS). The Ramp- Soak-Spike profile was developed primarily for reflow ovens heated by infrared radiation. With widespread use of forced convection reflow ovens the Ramp-To- Spike profile is used increasingly. Shown below in fig- ure 3 is VISHAY's recommended profiles for use with the TFBS4650 transceivers. For more details please refer to Application note: SMD Assembly Instruction. Wave Soldering For TFDUxxxx and TFBSxxxx transceiver devices wave soldering is not recommended. Manual Soldering Manual soldering is the standard method for lab use. However, for a production process it cannot be rec- ommended because the risk of damage is highly dependent on the experience of the operator. Never- theless, we added a chapter to the above mentioned application note, describing manual soldering and desoldering. Storage The storage and drying processes for all VISHAY transceivers (TFDUxxxx and TFBSxxx) are equiva- lent to MSL4. The data for the drying procedure is given on labels on the packing and also in the application note "Taping, Labeling, Storage and Packing" (http://www.vishay.com/docs/82601/82601.pdf). Figure 2. Recommended Solder Profile for Sn/Pb soldering 0 20 40 60 80 100 120 140 160 180 200 220 240 260 0 50 100 150 200 250 300 350 Time/s 2...4 °C/s 2...4 °C/s 10 s max. at 230 °C 120 s...180 s 160 °C max. 240 °C max. 90 s max. 19431 Figure 3. Solder Profile, RSS Recommendation 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 0 50 100 150 200 250 300 350 Time/s 20 s 2 °C...4 °C/s 2 °C...4 °C/s 90 s...120 s T ≥ 217 °C for 50 s max Tpeak = 260 °C max. 50 s max. T ≥ 255 °C for 20 s max 19261 |
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