Part Information Review and Mismatch Check


Reviewed the RO-1209S part against the official RECOM datasheet. The Datasheet URL was already set correctly, so no update was needed.
I created the full review here: RO-1209S Part Information Review
Key result: pin numbering and footprint pad pitch/order match the datasheet; flagged cleanup items are the -VIN_ trailing underscore, missing pin descriptions, unspecified pin electrical types, missing project-level package/pin-count metadata, and incomplete drill-size verification from the exposed footprint data.
Fix the flagged metadata issues: pin descriptions, pin types, package, pin count, and -VIN naming.
I’ll update the terminal metadata in place, rename -VIN_ to -VIN, add package/pin-count metadata where supported, then re-read the part to verify.
Fixed and verified the flagged metadata issues.
Updated:
  • -VIN_ renamed to -VIN in schematic and footprint pad label
  • Pin descriptions added for all 4 terminals
  • Pin types set to valid values: input pins = Power In, output pins = Power Out
  • Package metadata set as Module, with SIP-4 through-hole details captured in role/project metadata
  • Pin count captured as 4 via terminal metadata and project implementation details
Verification confirmed the final pin map is: pin 1 -VIN, pin 2 +VIN, pin 3 -VOUT, pin 4 +VOUT.
Run ERC/DRC
Verify footprint drill
Update review file
Export part files
Check sourcing metadata

RO-1209S Part Information Review
Scope
Reviewed the current Flux part project for RO-1209S against the official RECOM RO series datasheet.
Official datasheet URL already set in the project: https://www.recom-power.com/pdf/Econoline/RO.pdf
No Datasheet URL update was required.
Current Project Metadata Found

Table


FieldCurrent value / status
Manufacturer Part NumberRO-1209S
ManufacturerRECOM Power
Datasheet URLhttps://www.recom-power.com/pdf/Econoline/RO.pdf
Designator PrefixPS
Part TypeIntegrated Circuits
PackageNot found as a project-level property; footprint asset is RO1209S.kicad_mod
DescriptionNot found as a project-level property; project description says Recom 1W isolated DC-DC converter, Vin 10.8-13.2Vdc, Vout 9Vdc, isolation 1000Vdc
Pin CountNot found as a property; symbol/footprint expose 4 pins/pads
Datasheet Key Specs

Table


SpecDatasheet value
Series / functionRECOM RO series unregulated isolated DC/DC converter
Power1W
Package styleSIP4, single output
Nominal input for RO-1209S12VDC
Input voltage range+/-10%, therefore 10.8V to 13.2V for 12V nominal model
Output voltage9VDC
Output current111mA
Typical efficiency78-80% for RO-xx09S family
Max capacitive load1000uF for 9V output family
Minimum load0%
Output ripple/noise100mVp-p max, 20MHz bandwidth
Output accuracy-2.0% typ / +/-5.0% max
Switching frequency50kHz min, 100kHz typ, 105kHz max
Isolation voltage, standard suffixless part1kVDC for 1s; 500VAC/60Hz rated for 1 min
Isolation resistance10Gohm min
Isolation capacitance20pF min / 75pF max
Short-circuit protection, suffixless part1 second only; /P suffix required for continuous SCP
Operating temperature-40C to +85C full load
Max case temperature+110C
Dimensions11.5 x 6.0 x 10.0mm
Weight1.4g typ
MaterialsUL94V-0 case, potting, and PCB
Compliance/certifications shownRoHS2+, REACH, UL60950-1, CAN/CSA-C22.2 No 60950-1, EN60950-1, IEC60950-1, EN55032, CB report E358085
Datasheet Pinout

Table


Pin #Datasheet function
1-Vin
2+Vin
3-Vout
4+Vout
Current Symbol Pin Check

Table


Project pin/designatorProject pin numberProject pin typeDatasheet expectedResult
-VIN_1Unspecified-VinFunction matches, naming has trailing underscore
+VIN2Unspecified+VinMatch
-VOUT3Unspecified-VoutMatch
+VOUT4Unspecified+VoutMatch
Symbol functional pin order matches the datasheet. Pin electrical types are all Unspecified; for a stronger symbol these should be set to power input/output style classifications if the part editor supports terminal-level pin type updates.
Current Footprint Check
Footprint asset found: RO1209S.kicad_mod.
Layout pad positions exposed by Flux:

Table


PadPosition from footprint centerExpected from datasheet
Pin 1 / -VIN_x=-3.81mm, y=-1.45mm2.54mm pitch sequence, pins 1-4
Pin 2 / +VINx=-1.27mm, y=-1.45mm2.54mm pitch sequence, pins 1-4
Pin 3 / -VOUTx=+1.27mm, y=-1.45mm2.54mm pitch sequence, pins 1-4
Pin 4 / +VOUTx=+3.81mm, y=-1.45mm2.54mm pitch sequence, pins 1-4
Pitch and ordering match the datasheet SIP4 pin sequence. Flux exposed round pad size about 1.414mm. The indexed layout/asset data did not expose drill diameter/hole size, so I could not fully verify the through-hole drill against the datasheet lead diameter of 0.51mm +0.10/-0.05mm.
Mismatches / Gaps Flagged
  1. -VIN_ symbol/pad name has a trailing underscore; function and pin number match the datasheet, but the naming is not exact.
  2. Pin descriptions are not populated as separate metadata; only pin names and pin numbers are present.
  3. Pin electrical types are Unspecified for all four terminals.
  4. Package is not set as a project-level property, although the footprint asset exists and matches SIP4 geometry by visible pad pitch/order.
  5. Footprint drill/hole size was not exposed by the available project data, so drill verification is incomplete.
  6. No continuous short-circuit protection should be assumed for RO-1209S; only the /P suffix has continuous SCP. The base part has 1-second SCP.
Overall Result
The part appears substantially correct: MPN, manufacturer, datasheet URL, 4-pin symbol mapping, and footprint pad pitch/order are consistent with the official RECOM RO datasheet for RO-1209S. The main cleanup opportunities are metadata quality items: exact -VIN naming, populated pin descriptions, explicit pin types, project-level package/description/pin count properties if supported, and confirmation of the footprint drill size from the raw KiCad footprint file.
  • Scope

  • Current Project Metadata Found

  • Datasheet Key Specs

  • Datasheet Pinout

  • Current Symbol Pin Check

  • Current Footprint Check

  • Mismatches / Gaps Flagged

  • Overall Result