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VCC6-Q/R Series, 2.5 and 3.3v PECL Crystal Oscillator
Vectron International 267 Lowell Rd, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail: vectron@vectron.com
IR Reflow and Suggested Pad Size Layout
The VCC6 has been qualified to meet the JEDEC standard for Pb-Free assembly. The temperatures and
time intervals listed are based on the Pb-Free small body requirements and maximum parameters are listed
in Table 6, lower temperatures are also acceptable. The VCC6 is hermetically sealed so an aqueous wash
is not an issue. Frequencies >200MHz will need to be reflowed at 220C max.
Table 7. Reflow Profile (IPC/JEDEC J-STD-020B)
Parameter
Symbol
Value
PreHeat Time
t S
60 sec Min, 200 sec Max
Ramp Up
R UP
3
oC/sec Max
Time Above 217
oC
t L
60 sec Min, 150 sec Max
Time To Peak Temperature
t AMB-P
480 sec Max
Time At 260
oC (max)
t P
10 sec Max
Time At 240°C (max)
tp2
60 sec MAX
Ramp Down
R DN
6
oC/sec Max
Figure 8. IR Reflow Diagram
Figure 9. Pad Size Diagram
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