C4500
OCXO
Recommended Reflow Profile
tp
Critical Zone
TL to Tp
Tp
Ramp up
TL
Ramp dow n
tL
Ts
Ts
ts
preheat
25
t 25°C to peak
Time
Profile Feature
Pb-Free Assembly/Sn-Pb Assembly
Average ramp-up rate (TL to Tp)
Preheat -Temperature Min Tsmin
3°C/second max.
)
150°c
200°c
60-180 seconds
-Temperature Min Tsmax
-Time (min to max) (ts)
)
Tsmax to TL - Ramp-up Rate
3°C/second max.
Time maintainted above - Temperature (TL)
- Time (tL)
217°C
60-150 seconds
Peak Temperature (Tp)
max 260°C
Time within 5°C of actual Peak Temperature (tp)
Ramp-down Rate
20-40 seconds
6°C/second max.
8 minutes max.
Time 25°C to Peak Temperature
Note: All temperatures refer to topside of the package, measured on the package body surface.
Vectron International · www.vectron.com
v.2005-11-21 · page 4 of 5
Vectron International
Vectron international GmbH & Co. KG
Landstrasse
Vectron Asia Pacific Sales Office
Vectron International LLC.
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