Part Audit

flux

I’m checking the package geometry, pad numbering, and hidden project properties in parallel.

flux

The footprint currently identifies itself as STPS10L40CSF/PSMC (TO-277A) while the project MPN is STPS10M60SF; I’m verifying whether that is a harmless family reuse or a real mismatch.
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Part Audit

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Part Audit Identity and existing properties Datasheet key specifications
  • Device: single low-drop power Schottky rectifier
  • Package: PSMC (TO-277A), 90 mg, tape-and-reel base quantity 6000
  • Marking: PS10M60
  • Repetitive peak reverse voltage, VRRM: 60 V
  • Average forward current, IF(AV): 10 A at Tc = 145 °C, 50% square-wave duty
  • Non-repetitive surge current, IFSM: 230 A, 10 ms sinusoidal pulse
  • Maximum junction temperature: 175 °C
  • Maximum forward voltage: 0.56 V at 5 A and 25 °C; 0.65 V at 10 A and 25 °C
  • Maximum reverse leakage at VRRM: 50 µA at 25 °C; 25 mA at 125 °C (8 mA typical)
  • Features: low profile (1.1 mm typical), wettable flanks, avalanche capability, ECOPACK2 compliance
Pin and symbol cross-check

flux

Audit complete. The official ST datasheet URL was already set, and the 3-pin mapping and TO-277A land pattern match; issues are missing package/pin metadata, an ambiguous description, and a footprint filename referencing STPS10L40CSF.
Full specs and findings: Part Audit.
Clean up part metadata
Rename footprint asset
Review 3D alignment
A
Pin Number
2
K
Pin Number
3
A
Pin Number
1

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Part Audit
Identity and existing properties

Table

FieldCurrent valueDatasheet cross-check
ManufacturerSTMicroelectronicsCorrect
MPNSTPS10M60SFCorrect
Part typeDiodesBroad but correct
Designator prefixDCorrect
Pin count3Correct for PSMC (TO-277A): two anode terminals and one cathode terminal
Datasheethttps://www.st.com/resource/en/datasheet/stps10m60sf.pdfOfficial STMicroelectronics datasheet; already present, so no update was required
Package propertyNot setMissing; should state PSMC (TO-277A)
DescriptionProject description: “DFD THYR TRIAC & RECTIFIER 60 V power Schottky rectifier”Electrical description is substantially correct, but the “DFD THYR TRIAC & RECTIFIER” prefix is unrelated/ambiguous. Recommended description: “60 V, 10 A low-drop power Schottky rectifier, PSMC (TO-277A)”
Pin electrical types/descriptionsAll three are Unspecified; no detailed descriptionsNames/numbers are correct, but descriptions/types are incomplete
Datasheet key specifications
  • Device: single low-drop power Schottky rectifier
  • Package: PSMC (TO-277A), 90 mg, tape-and-reel base quantity 6000
  • Marking: PS10M60
  • Repetitive peak reverse voltage, VRRM: 60 V
  • Average forward current, IF(AV): 10 A at Tc = 145 °C, 50% square-wave duty
  • Non-repetitive surge current, IFSM: 230 A, 10 ms sinusoidal pulse
  • Maximum junction temperature: 175 °C
  • Maximum forward voltage: 0.56 V at 5 A and 25 °C; 0.65 V at 10 A and 25 °C
  • Maximum reverse leakage at VRRM: 50 µA at 25 °C; 25 mA at 125 °C (8 mA typical)
  • Features: low profile (1.1 mm typical), wettable flanks, avalanche capability, ECOPACK2 compliance
Pin and symbol cross-check

Table

PinCurrent symbol nameDatasheet functionResult
1AAnode terminalMatch
2AAnode terminalMatch
3KCathode / large thermal-current terminalMatch
The SVG depicts a single Schottky diode with two internally commoned anode terminals and one cathode terminal. This matches the datasheet requirement that the two anode terminals be short-circuited for rated operation. Symbol orientation is graphical only and does not affect the correct pin mapping.
Footprint cross-check
The installed footprint is identified internally as STPS10L40CSF.kicad_mod, described as PSMC (TO-277A), while its 3D model is STPS10M60SF.stp.
Observed land pattern:
  • Small pads 1 and 2: 1.27 mm × 1.40 mm
  • Small-pad center spacing: 2.08 mm
  • Large pad 3: 4.72 mm × 4.80 mm
  • Three-pad PSMC/TO-277A arrangement with the large cathode pad opposite the two anode pads
These dimensions and the pad arrangement match the ST datasheet’s recommended PSMC (TO-277A) footprint. The differing STPS10L40CSF filename appears to be family-footprint reuse rather than a geometry or pinout error, but it should be renamed for traceability.
Mismatches and quality flags
  1. Missing Package property: Add PSMC (TO-277A).
  2. Incomplete pin metadata: Pins 1 and 2 should be described as anode terminals and pin 3 as cathode/thermal-current terminal. Electrical pin types should not remain Unspecified if the library schema supports passive diode terminals.
  3. Footprint asset naming mismatch: The footprint filename/value references STPS10L40CSF, not STPS10M60SF. Geometry and pin mapping match, so this is a traceability/name issue rather than a manufacturing error.
  4. Description quality: The current description contains an unrelated/ambiguous category prefix. Replace it with a clean manufacturer-style description.
  5. No functional pinout mismatch found: Symbol pin numbers, labels, footprint pads, and datasheet terminal functions agree.
  6. No land-pattern mismatch found: Pad sizes and arrangement agree with the official recommended footprint within the extracted drawing data.

  • Identity and existing properties

  • Datasheet key specifications

  • Pin and symbol cross-check

  • Footprint cross-check

  • Mismatches and quality flags

Documents

Assets

image.png

image.png

imageThumbnail
STPS10M60SF

STPS10M60SF

STPS10M60SF.stp3D Model

STPS10M60SF

STPS10L40CSF.kicad_modFootprint

STPS10M60SF

STPS10M60SF Symbol.svgDefault

STPS10M60SF

STPS10M60SF thumbnail
DFD THYR TRIAC & RECTIFIER 60 V power Schottky rectifier

Properties

STPS10M60SF

STMicroelectronics

Diodes

st.com/resource/en/datasheet/stps10m60sf.pdf

D

Pricing & Availability

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