START

END

Wait

Determine system settings (req. ESD rating, maximum

DC operating voltage, etc.

Specify device settings

(application, lines protected, max.

capacitance, max. leakage current)

Make the

intern do it

Submit part specs to component engineer for

approval

Finalize PCB for mass production

Test prototype

Select part that is best match to

design

Buildprototype PCB

Sort through data sheets manually to

find ones that match predefined

criteria

Eliminate parts too large for available

PCB space

Collect dozens of parts data sheets

from multiple vendors

Partaccepted

?

No

Yes

No

Yes

Passestests

?

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Select and Compare Your Devices3

Analyze Your Selections4

Tired of shuffling through catalogs and datasheets to find the right ESD protection devices, followed by weeks or months of testing, approvals, and prototype building, only to discover you have to start the whole process all over again?

The iDesign™ online design and selection platform from Littelfuse can help. This robust, web-based tool lets you identify the Littelfuse TVS Diode Array best suited to your application in four easy steps – just enter your system and device parameters, then compare up to three devices. A built-in simulation tool lets you do a “dry run” on a device’s ESD performance without the need to build a test board first. You can even find parts documentation and order samples for prototyping, all in the same convenient tool.

The Confident Solution

The Flowchart of Frustration (The Old Way)

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Enter System Settings1

Enter Device Settings2

Choosing an

ESD ProtectionDevice