Part Information Review and Mismatch Check

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

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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

Documents

    RO-1209S Part Information Review

Assets

stp

RO-1209S

RO-1209S.stp3D Model
RO-1209S

RO-1209S

RO-1209S Symbol.svgDefault
kicad_mod

RO-1209S

RO1209S.kicad_modFootprint
RO-1209S.png

RO-1209S.png

RO-1209SThumbnail

RO-1209S

RO-1209S thumbnail
Isolated Module DC DC Converter 1 Output 9V 111mA 10.8V - 13.2V Input
The RO-1209S is a compact, isolated 1W DC-DC converter module from the ECONOLINE RO series, designed to convert a nominal 12V DC input into a regulated 9V DC isolated output. Housed in a SIP-4 through-hole package, it provides galvanic isolation of up to 1kVDC between input and output, making it suitable for industrial, instrumentation, telecommunications, and general-purpose power isolation applications. The module features a wide operating temperature range and fully encapsulated construction for enhanced reliability.
Key Features
1W isolated DC-DC converter Nominal 12V DC input voltage Single 9V DC output 1kVDC input-to-output isolation Compact SIP-4 through-hole package Fully encapsulated design for improved reliability Industrial operating temperature range: -40°C to +85°C Up to 80–85% efficiency Industry-standard pinout Suitable for power isolation and voltage conversion applications UL94V-0 package material Optional short-circuit protection variants available

Properties

Package: SIP-4 through-hole isolated DC-DC converter module, 4 pins, 11.5 x 6.0 x 10.0mm body. Datasheet pinout: pin 1 -Vin, pin 2 +Vin, pin 3 -Vout, pin 4 +Vout.

RO-1209S

RECOM Power

Integrated Circuits

PS

parametric-v1

Pricing & Availability

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