VCC6-107 Просмотр технического описания (PDF) - Vectron International
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VCC6-107 Datasheet PDF : 6 Pages
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VCC6-107 Crystal Oscillator
Handling Precautions
Although ESD protection circuitry has been designed into the the VCC6, proper precautions should be taken
when handling and mounting. VI employs a Human Body Model and a Charged-Device Model (CDM) for
ESD susceptibility testing and design protection evaluation. ESD thresholds are dependent on the circuit
parameters used to define the model. Although no industry wide standard has been adopted for the CDM, a
standard HBM of resistance = 1.5kohms and capacitance = 100pF is widely used and therefore can be
used for comparison purposes.
Table 4. ESD Ratings
Model
Human Body Model
Charged Device Model
Minimum
1000
1000
Conditions
MIL-STD-883 Method 3115
JESD 22-C101
Suggested IR profile
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 parameters are listed in Table 5.
As the contact pads are gold over nickel, devices can be reflowed at lower temperatures. The VCC6 is
hermetically sealed so an aqueous wash is not an issue.
Table 5. Reflow Profile
Parameter
PreHeat Time
Ramp Up
Time Above 217 oC
Time To Peak Temperature
Time at 260oC (max)
Time at 240°C (max)
Ramp Down
Symbol
tS
R UP
tL
t AMB-P
tP
tp2
R DN
Value
60 sec Min, 180 sec Max
3 oC/sec Max
60 sec Min, 150 sec Max
480 sec Max
10 sec Max
60 sec Max
6 oC/sec Max
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