Part Review and Datasheet Update
Worked for 4 mins 20 sec
Completed the part review and updated the Datasheet URL to the official Vicor PDF. The symbol pinout and 9-pad footprint broadly match the datasheet; key issues are a misleading project description (“3 20W” vs 26.67 A / 320 W), unspecified pin types/descriptions, and footprint drill/annular-ring dimensions not being visible in readback.
Full report:
part-review-vicor-dcm3623t75h13c2t00
Fix the description and pin metadata, then verify the footprint hole and annular-ring dimensions.
Thought for 5 sec
I’ll update the project description and terminal pin metadata, then inspect/export the footprint data to verify drill and annular-ring dimensions against the Vicor land pattern.
Worked for 7 mins
Completed: updated the project description, populated pin types/descriptions, and verified the footprint drills/annular rings from the raw KiCad footprint. The footprint dimensions match the Vicor datasheet: 2.03 mm drills with ~0.255/0.382 mm annular rings where required, and 1.52 mm signal drills with ~0.256 mm annular rings.
Detailed verification is in
footprint-verification-dcm3623t75h13c2t00.Review docs and export
Run final ERC/DRC
Update review doc
Export footprint file
Check part properties
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Part Review: Vicor DCM3623T75H13C2T00
Reviewed project metadata
- Project / part name: DCM3623T75H13C2T00
- Manufacturer: VICOR
- MPN: DCM3623T75H13C2T00
- Description in project: Isolated DC/DC Converters 3623 DCM 48Vin 12V 3 20W
- Published as part: yes
- Part UID: 426dddb5-f601-435c-9699-1bea9c4d8e2b
- Designator prefix: J
- Pads / terminals present: 9
- Datasheet URL: updated to official Vicor PDF: https://www.vicorpower.com/documents/datasheets/DCM3623x75H13C2yzz_ds.pdf
Datasheet identity and key specifications
Datasheet family: DCM3623x75H13C2yzz, which covers ordering code DCM3623T75H13C2T00.
Key specs from datasheet:
- Function: isolated, regulated DC/DC converter module
- Package: 3623 through-hole ChiP package
- Nominal input: 48 Vdc
- Input operating range: 36 V to 75 Vdc
- Nominal output: 12.0 Vdc SELV
- Output trim range: 7.2 V to 13.2 V
- Rated output power: 320 W continuous
- Rated output current: 26.67 A continuous
- Peak efficiency: 92.4% typical at full load, nominal line/trim
- Isolation: 2250 Vdc input-to-output dielectric withstand, basic insulation
- Operating internal temperature, T grade: -40 °C to +125 °C
- Mechanical size, typ: 38.72 mm × 22.8 mm × 7.21 mm (1.524 in × 0.898 in × 0.284 in)
- Not intended for reflow solder attach
Datasheet pinout
Table
| Datasheet pin | Signal | Type | Function |
|---|---|---|---|
| A1 | +IN | Input power | Positive input power terminal |
| B1 | TR | Input | Enables/disables trim functionality; adjusts output voltage when trim is active |
| C1 | EN | Input | Enables/disables power supply |
| D1 | FT | Output | Fault monitoring |
| E1 | -IN | Input power return | Negative input power terminal; reference for control pins |
| A'2, C'2 | +OUT | Output power | Positive output power terminals |
| B'2, D'2 | -OUT | Output power return | Negative output power terminals |
Symbol cross-check
Symbol terminals present in the project:
Table
| Project terminal | Project pin number | Datasheet match |
|---|---|---|
| +IN | A1 | Match |
| TR | B1 | Match |
| EN | C1 | Match |
| FT | D1 | Match |
| -IN | E1 | Match |
| +OUT_1 | A2 | Matches +OUT at A'2 |
| -OUT_1 | B2 | Matches -OUT at B'2 |
| +OUT_2 | C2 | Matches +OUT at C'2 |
| -OUT_2 | D2 | Matches -OUT at D'2 |
Result: Pin count and signal-to-pin mapping match the datasheet. The project uses unprimed A2/B2/C2/D2 labels while the datasheet uses A'2/B'2/C'2/D'2; this is a notation difference, not an electrical mismatch.
Footprint cross-check
Observed footprint contains 9 pads, matching the datasheet recommended 9-hole through-hole pattern. The visible silkscreen outline is approximately 38.72 mm × 22.8 mm, matching the datasheet nominal body size. The pin-1 indicator and pad count are present.
The datasheet recommends plated-through holes with three pad/hole groups:
- 4 places: 2.03 mm plated-through, 0.38 mm annular ring
- 2 places: 2.03 mm plated-through, 0.25 mm annular ring
- 3 places: 1.52 mm plated-through, 0.25 mm annular ring
The layout inspection confirmed the footprint and pads exist, but the available layout readback did not expose each pad's hole diameter/annular ring dimensions, so those dimensions were not independently verified from the project data.
Mismatches / issues flagged
- Project description appears incorrect: the project description says “12V 3 20W”, but the datasheet rating is 12 V, 26.67 A, 320 W. This should be corrected to avoid a misleading part description.
- Terminal Pin Type properties are generic: all symbol terminals currently show Pin Type: Unspecified. Datasheet types are known and should ideally be reflected as input power, input, output, input power return, and output power return.
- Pin descriptions are not populated as explicit properties: the schematic terminals do not show the datasheet functional descriptions as Pin Description properties. The symbol names are correct, but adding descriptions would improve downstream validation and library quality.
- Footprint hole/annular ring dimensions not fully verifiable from readback: pad count and outline match, but exact hole and annular-ring dimensions were not visible in the inspected layout data.
- Datasheet URL was previously an uploaded PDF copy: updated to the official Vicor-hosted PDF URL for traceability.
Overall result
The part identity, manufacturer, MPN, pin count, symbol pin mapping, package family, and basic footprint outline are consistent with the official Vicor datasheet. The main required cleanup is metadata quality: correct the project description and populate pin type/description properties; exact footprint drill/annular-ring dimensions should be verified in the footprint editor or by a lower-level footprint export if available.
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