VC-800 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)

Reliability

The VC-800 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 VC-800, 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 VC-800 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 VC-800 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

60 sec Min, 180 sec Max

Ramp Up

3

Time Above 217

60 sec Min, 150 sec Max

Time To Peak Temperature

480 sec Max

Time At 260

20 sec Min, 40 sec Max

Ramp Down

6