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參數(shù)資料
| 型號： | VVC2-B3B-20M480 |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | XO, clock |
| 英文描述： | VCXO, CLOCK, 20.48 MHz, CMOS OUTPUT |
| 封裝： | ROHS COMPLIANT, HERMETIC SEALED, CERAMIC, SMD, 6 PIN |
| 文件頁數(shù)： | 5/6頁 |
| 文件大?。?/td> | 0K |
| 代理商： | VVC2-B3B-20M480 |
VVC1, VVC2 Voltage Controlled Crystal Oscillator
Vectron International 267 Lowell Rd, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail: vectron@vectron.com
Reliability
The VVC1/VVC2 is capable of meeting the following qualification tests.
Table 4. Environnemental Compliance
Parameter
Conditions
Mechanical Shock
MIL-STD-883 Method 2002
Mechanical Vibration
MIL-STD-883 Method 2007
Solderability
MIL-STD-883 Method 2003
Gross and Fine Leak
MIL-STD-883 Method 1014
Resistance to Solvents
MIL-STD-883 Method 2016
Moisture Sensitivity Level
1
Handling Precautions
Although ESD protection circuitry has been designed into the the VVC1/VVC2, 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 5. ESD Ratings
Model
Minimum
Conditions
Human Body Model
1500
MIL-STD-883 Method 3115
Charged Device Model
1000
JESD 22-C101
Suggested IR profile
Devices are built using lead free epoxy and can also be subjected to standard lead free IR reflow
conditions.
Table 6. Reflow Profile (IPC/JEDEC J-STD-020)
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
20 sec Min, 40 sec Max
Time At 240°C (max)
tp2
60 sec MAX
Ramp Down
R DN
6
oC/sec Max
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