Part Datasheet Review and Validation

flux

0:52

Considering designator use.

Analyzing the schematic.

Reviewing the bill of materials.

Analyzing the PCB layout.

Looking for "part description, ordering information, package style, number of positions, terminal names" in 1810151213_Diptronics-DM-02-V-T-R_C225004.pdf

Looking for "absolute maximum ratings" in 1810151213_Diptronics-DM-02-V-T-R_C225004.pdf

Looking for "electrical characteristics" in 1810151213_Diptronics-DM-02-V-T-R_C225004.pdf

Looking for "recommended operating conditions" in 1810151213_Diptronics-DM-02-V-T-R_C225004.pdf

Looking for "pin configuration and terminal description" in 1810151213_Diptronics-DM-02-V-T-R_C225004.pdf

Looking for "mechanical dimensions and package dimensions" in 1810151213_Diptronics-DM-02-V-T-R_C225004.pdf

Looking for "special features, materials, contact rating, insulation resistance, dielectric strength, contact resistance, operating force, travel" in 1810151213_Diptronics-DM-02-V-T-R_C225004.pdf

Identifying temperature discrepancies.

Review complete
Step 2 was skipped because this part project already has a datasheet URL set:
  • https://datasheet.lcsc.com/lcsc/1810151213_Diptronics-DM-02-V-T-R_C225004.pdf

Part metadata found

FieldValue
DescriptionDIP Switch, Position
ManufacturerDiptronics
MPNDM-02-V-T/R
Project part typeElectromechanical Components
Project package/case codeDIP
Datasheet URL presentYes
Schematic terminal count4
Schematic terminalsCOM_1, COM_2, NO_1, NO_2
Footprint assetDM02VTR.kicad_mod

Datasheet summary

CategoryExtracted details
Device type2-position SPST slide DIP switch
Mounting/packageSMD-4P, about 6.2 mm x 6.0 mm body
Pitch2.54 mm
Contact rating25 mA, 24 VDC
Contact resistance50 mOhm max initial
Insulation resistance100 MOhm min at 500 VDC
Dielectric strengthReported as 300 VAC for 1 minute in one extract, and 500 VAC for 1 minute in another extract
Electrical life2,000 operations per switch
Storage temperature-40 C to +85 C
Operating temperatureReported as -20 C to +85 C in one extract, and -20 C to +70 C in another extract
Operating forceReported as 500 gf max in one extract, and 1,000 gf max in another extract
Travel1 mm
Special featuresLow profile, gold contact, top tape type for washing process

Pin / terminal interpretation

Schematic terminalPin numberCurrent meaning in projectDatasheet confidence
COM_11Common for switch 1Reasonable, but not explicitly confirmed from extracted pin table
COM_22Common for switch 2Reasonable, but not explicitly confirmed from extracted pin table
NO_13Switched contact for switch 1Reasonable, but not explicitly confirmed from extracted pin table
NO_24Switched contact for switch 2Reasonable, but not explicitly confirmed from extracted pin table
Footprint cross-check
From the footprint asset:
  • 4 SMD pads
  • Pad centers at about x = +/-1.27 mm, y = +/-4.45 mm
  • Pad size about 1.10 mm x 1.50 mm
  • Body outline about 6.02 mm x 6.2 mm
That is broadly consistent with a 4-pin SMD 2-position DIP switch footprint.

Mismatches and risk flags

SeverityFindingWhy it matters
HighProject package/case code is DIP, but datasheet/footprint indicate SMD-4PThis can cause incorrect part ordering, wrong filtering in library/BOM workflows, and confusion during manufacturing handoff
MediumTerminal naming in the schematic is inferred as COM / NO, but the extracted datasheet text did not return a definitive per-pin tableIf pin numbering is reversed relative to the manufacturer drawing, the symbol could map incorrectly to the footprint
MediumDatasheet extracts contain conflicting values for dielectric strength, operating temperature, and operating forceThese should be checked directly on the source PDF page before final publishing or release
LowTerminal pin types are all currently Unspecified in the schematicNot usually fatal for a switch part, but clearer terminal typing improves reuse and review quality
Bottom line
  • The footprint looks plausibly correct for a 4-pin SMD 2-position switch.
  • The biggest issue is the package metadata mismatch: the part is marked DIP in project properties, while the datasheet and footprint indicate SMD-4P.
  • The next biggest risk is pin mapping certainty. The current 4-terminal symbol is structurally reasonable, but I do not have a definitive extracted manufacturer pin table from the PDF text to prove the numbering/order is exact.
If you want, I can next do a tighter audit focused only on validating the exact pad-number-to-terminal mapping for COM_1, COM_2, NO_1, and NO_2 against the manufacturer drawing.
Check exact pin map
Inspect current properties
Review footprint geometry
46 days
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Documents

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    Assets

    kicad_mod

    DM-02-V-T_R

    DM02VTR.kicad_modFootprint
    DM-02-V-T_R

    DM-02-V-T_R

    DM-02-V-T_R Symbol.svgDefault
    DM-02-V-TR-thumb.png

    DM-02-V-TR-thumb.png

    DM-02-V-TR-thumbThumbnail

    DM-02-V-T/R

    DM-02-V-T/R thumbnail
    DIP Switches / SIP Switches 2 Position, SPST SMD DIP Switch #CommonPartsLibrary #Switch

    Properties

    DM-02-V-T/R

    Diptronics

    Electromechanical Components

    datasheet.lcsc.com/lcsc/1810151213_Diptronics-DM-02-V-T-R_C225004.pdf

    S

    DIP

    creativecommons.org/licenses/by/4.0/

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