VTM3 Data Sheet

Vectron International 267 Lowell Rd, Hudson NH 03051

Tel: 1-88-VECTRON-1

e-mail vectron@vectron.com

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Handling Precautions

Although ESD protection circuitry has been designed into the the VTM3, 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 6. ESD Ratings

Model

Minimum

Conditions

Human Body Model

1000

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 7 shows max temperatures and lower temperatures can also be used e.g. peak

temperature of 220C.

Table 7. Reflow Profile (IPC/JEDEC J-STD-020)

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

10 sec Max

Time At 240 °C (max)

60 sec Max

Ramp Down

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