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VDLGLD-44.736 Datasheet(PDF) 5 Page - Vectron International, Inc |
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VDLGLD-44.736 Datasheet(HTML) 5 Page - Vectron International, Inc |
5 / 6 page V-Type Voltage Controlled Crystal Oscillator Vectron International 267 Lowell Road, Hudson NH 03051 Tel:1-88-VECTRON-1 e-mail: vectron@vectron.com 25 217 200 150 260 Time (sec) t S t AMB-P t L t P R UP R DN Reliability The V-Type is capable of meeting the following qualification tests. Table 3. Environmental 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 Handling Precautions Although ESD protection circuitry has been designed into the the V-Type, 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 Minimum Conditions Human Body Model 1500 MIL-STD-883 Method 3115 Charged Device Model 1000 JESD 22-C101 The V-Type is 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 the table below. The contact pads are gold over nickel so lower IR reflow temperatures such as 220°C can be used (device is backwards compatible with a lead solder assembly). The V-Type is hermetically sealed so an aqueous wash is not an issue. Table 5. Reflow Profile (IPC/JEDEC J-STD-020C) Parameter Symbol Value PreHeat Time t S 60 sec Min, 180 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 t P 20 sec Min, 40 sec Max Ramp Down R DN 6 oC/sec Max |
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