Part Datasheet Review and Validation

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

Field	Value
Description	DIP Switch, Position
Manufacturer	Diptronics
MPN	DM-02-V-T/R
Project part type	Electromechanical Components
Project package/case code	DIP
Datasheet URL present	Yes
Schematic terminal count	4
Schematic terminals	COM_1, COM_2, NO_1, NO_2
Footprint asset	`DM02VTR.kicad_mod`

Datasheet summary

Category	Extracted details
Device type	2-position SPST slide DIP switch
Mounting/package	SMD-4P, about 6.2 mm x 6.0 mm body
Pitch	2.54 mm
Contact rating	25 mA, 24 VDC
Contact resistance	50 mOhm max initial
Insulation resistance	100 MOhm min at 500 VDC
Dielectric strength	Reported as 300 VAC for 1 minute in one extract, and 500 VAC for 1 minute in another extract
Electrical life	2,000 operations per switch
Storage temperature	-40 C to +85 C
Operating temperature	Reported as -20 C to +85 C in one extract, and -20 C to +70 C in another extract
Operating force	Reported as 500 gf max in one extract, and 1,000 gf max in another extract
Travel	1 mm
Special features	Low profile, gold contact, top tape type for washing process

Pin / terminal interpretation

Schematic terminal	Pin number	Current meaning in project	Datasheet confidence
COM_1	1	Common for switch 1	Reasonable, but not explicitly confirmed from extracted pin table
COM_2	2	Common for switch 2	Reasonable, but not explicitly confirmed from extracted pin table
NO_1	3	Switched contact for switch 1	Reasonable, but not explicitly confirmed from extracted pin table
NO_2	4	Switched contact for switch 2	Reasonable, 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

Severity	Finding	Why it matters
High	Project package/case code is DIP, but datasheet/footprint indicate SMD-4P	This can cause incorrect part ordering, wrong filtering in library/BOM workflows, and confusion during manufacturing handoff
Medium	Terminal naming in the schematic is inferred as `COM` / `NO`, but the extracted datasheet text did not return a definitive per-pin table	If pin numbering is reversed relative to the manufacturer drawing, the symbol could map incorrectly to the footprint
Medium	Datasheet extracts contain conflicting values for dielectric strength, operating temperature, and operating force	These should be checked directly on the source PDF page before final publishing or release
Low	Terminal pin types are all currently Unspecified in the schematic	Not 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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