Part Review and Datasheet Verification

flux

Reviewed the RAC03-12SK part against the RECOM RAC03-K datasheet.
  • Official datasheet found: https://recom-power.com/pdf/Powerline_AC-DC/RAC03-K.pdf
  • Existing Datasheet URL was already set to an uploaded PDF; I attempted to replace it with the official URL, but the visible project metadata still shows the uploaded PDF.
  • Pinout matches datasheet: Pin 1 VAC in (L), Pin 2 -Vout, Pin 3 +Vout, Pin 4 VAC in (N).
  • Footprint appears consistent: 4-pin THT module, body about 28.5 × 23.5 × 17.9 mm, matching the datasheet outline.
  • Key specs: 85–264 VAC / 120–370 VDC input, 12 VDC output, 250 mA, 3 W, 78% typ efficiency, 3 kVAC isolation, Class II, reinforced insulation.
  • Mismatches / issues flagged: terminal Pin Type fields are still “Unspecified”; consider setting AC input pins as power input and output pins as power output for clearer symbol semantics.
adrian95

adrian95

Set the AC pins as power inputs and the DC pins as power outputs.

flux

I’ll update the four terminal pin type properties so the AC input pins are power inputs and the DC output pins are power outputs, then verify the changes.

flux

Updated and verified the pin types:
  • VAC_IN_(L) and VAC_IN_(N) are now Power In
  • +VOUT and -VOUT are now Power Out
I first used longer labels, then normalized them to Flux’s standard pin type values.
Review, document and export
Run ERC DRC
Create validation note
Check footprint dimensions
Export part data
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RAC03-12SK

RAC03-12SK thumbnail
AC/DC Power Modules 3W 85-264Vin 12Vout 250mA
Enclosed AC DC Converters 1 Output 12V 250mA 85 ~ 264 VAC, 120 ~ 370 VDC Input
The RAC03-12SK is a compact 3W AC/DC enclosed power module from RECOM Power, designed to convert a universal AC input into a regulated 12V DC output. It accepts a wide input voltage range of 85–264VAC (or 120–370VDC) and delivers up to 250mA of output current. The module features an isolated design, high reliability, and a space-saving 4-DIP package, making it suitable for industrial automation, IoT devices, household appliances, instrumentation, and embedded power supply applications. It is designed to meet international safety and EMC standards while requiring minimal external components.
Key Features Universal 85–264VAC / 120–370VDC input range Regulated 12V DC output 3W continuous output power Maximum output current: 250mA Compact 4-DIP enclosed module Reinforced isolation for enhanced safety Low no-load power consumption (<150mW) Wide operating temperature: −40°C to +80°C (with derating) Meets international safety and EMC requirements Ideal for industrial, IoT, household, and embedded applications
#ACDCConverter #PowerModule #RECOM #3WPowerSupply #12VDC #EmbeddedPower #IndustrialElectronics #UniversalInput #PCBPowerModule #Electronics

Properties

RAC03-12SK

RECOM Power

Power Supply

recom-power.com/pdf/Powerline_AC-DC/RAC03-K.pdf

PS

parametric-v1

creativecommons.org/licenses/by/4.0/

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