# AC/DC Enclosed Power Supply (PSU), ITE, Household & Medical, 1 Outputs, 40 W, 12 VDC, 3.334 A

![Product image](https://novapart.co/image/farnell:3595482/)

**URL**: https://novapart.co/products/RACM40-12SK-T/ac-dc-enclosed-power-supply-psu-ite-household
**SKU**: RACM40-12SK-T
**Manufacturer**: RECOM POWER
**Category**: Power & Line Protection || Power Supplies || AC / DC Converters || AC / DC Enclosed Power Supplies
**Price**: €18.8200
**Stock**: 10+
**Lead Time**: 120 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Product Range | RACM40-K Series |
| No. Of Outputs | 1Outputs |
| Output Power Max | 40W |
| Current, Output 4 | - |
| Input Voltage Vac | 80V AC to 264V AC |
| Power Supply Output Type | Fixed |
| Output Current - Output 1 | 3.334A |
| Output Current - Output 2 | - |
| Output Current - Output 3 | - |
| Output Voltage - Output 1 | 12VDC |
| Output Voltage - Output 2 | - |
| Output Voltage - Output 3 | - |
| Output Voltage - Output 4 | - |
| Power Supply Applications | ITE, Household & Medical |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3595482/)

Technical Data Sheet RACM40-K Series ◊ AC/DC Power Supply 40W ◊ Input: 100V-240VAC 

**AC/DC Converter** 

## FEATURES 

- 1.8“x3.2“x1.2”, encapsulated module 

- 40W power from -40°C up to +65°C ambient 

- Operating temp. up to +85°C with derating 

- OVC III, 4kVAC/1min reinforced isolation 

- 2MOPP medical certified 

- 5000m (medical/ITE) operating altitude 

- Class B EMC filter built-in 

- 3 year warranty 

Dimensions (LxWxH): 83.23 x 46.43 x 30.40mm (3.2 x 1.8 x 1.2 inch) 185g (0.41 lbs) 

## APPLICATIONS 

SAFETY & EMC 

E314885 

**==> picture [24 x 10] intentionally omitted <==**

**----- Start of picture text -----**<br>
P 14<br>**----- End of picture text -----**<br>


## DESCRIPTION 

The compact encapsulated industrial + household + medical grade AC/DC converter series RACM40-K delivers 40 watts of output power from -40°C to +65°C with natural air convection only, and up to +85°C with derating or forced air cooling. With a clear focus on extended thermal performance for systems where space is limited, these 1.8“ x 3.2“ compact modules are designed to gain highest overall efficiency levels over the full output load range from universal AC inputs. The RACM40-K has ANSI/AAMI/IEC 60601-1 medical safety and EN 60601-1-2 medical EMC certifications, 2MOPP, 4kVac/1min isolation and offers OVC III certified to IEC61558. It is additionally certified (CB Report) to IEC/EN 62368-1; IEC61010 and IEC61558-1/-2-16 for industrial applications and IEC/EN 60335-1 for household appliances. The robust built-in class B EMC filter has sufficient margin to allow either Class II or Class I PELV with grounded output installations. The mechanically rugged construction with fully potted encapsulation, 1.6mm pins and additional threaded inserts gives the series enhanced stability against shock and vibrations. 

|SELECTION GUIDE||||||
|---|---|---|---|---|---|
|Part|Operating Input|Output Voltage|Output|Efficiency|Output Power|
|Number|Range(3, 4)|nom.|Current nom.|typ.(2)|continuous|
||[VAC]|[VDC]|[mA]|[%]|[W]|
|RACM40-05SK-T(1)|80-264|5|6000|87|30|
|RACM40-12SK-T(1)|80-264|12|3334|90|40|
|RACM40-15SK-T(1)|80-264|15|2667|90|40|
|RACM40-24SK-T(1)|80-264|24|1667|90|40|
|RACM40-48SK-T(1)|80-264|48|833|90|40|



Note1: “-T” single layer tray packing. Refer to „PACKAGING INFORMATION“ Note2: Efficiency is tested at +25°C with constant resistant mode at full load and 230VAC 

copyright © RECOM Power GmbH, all rights reserved www.recom-power.com 

Rev. 3-2025 

Page 1 

Technical Data Sheet 

**AC/DC Converter** 

## RACM40-K Series ◊ AC/DC Power Supply 40W ◊ Input: 100V-240VAC 

|SELECTION GUIDE (ON REQUEST MOQ≥1008PCS)|SELECTION GUIDE (ON REQUEST MOQ≥1008PCS)|||||
|---|---|---|---|---|---|
|Part|Operating Input|Output Voltage|Output|Efficiency|Output Power|
|Number|Range(3, 4)|nom.|Current|typ.(2)|max.|
||[VAC]|[VDC]|[mA]|[%]|[W]|
|RACM40-18SK-T(1)|80-264|18|2222|90|40|
|RACM40-36SK-T(1)|80-264|36|1111|90|40|



|BASIC CHARACTERISTICS (measured @|TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|
|---|---|---|---|---|---|
|Parameter|Condition||Min.|Typ.|Max.|
|Nominal Input Voltage|||100VAC||240VAC|
|Operating Range(3, 4)|47-63Hz,400Hz(5)||80/85VAC||264VAC|
||DC||120VDC||370VDC|
|Input Current|115VAC||||1000mA|
||230VAC||||500mA|
|Inrush Current|cold start at 25°C|115VAC|||15A|
|||230VAC|||30A|
|No Load Power Consumption|230VAC|||100mW||
|Ecodesign Standby Mode Use<br>(Available output power for stated input power)|115VAC|PIN= 0.5W|0.3W|||
|||PIN= 1W|0.7W|||
||230VAC|PIN= 0.5W|0.27W|||
|||PIN= 1W|0.65W|||
|Input Frequency Range|||47Hz||63Hz|
|Minimum Load|||0%|||
|Power Factor|115VAC||0.6|||
||230VAC||0.5|||
|Start-up time||||160ms||
|Rise time||||70ms||
|Hold-up time|115VAC||16ms|||
||230VAC||60ms|||
|Internal OperatingFrequency|100% load|at nominal VIN||100kHz||
|Output Ripple and Noise(6)|20MHz BW|5Vout|||80mVp-p|
|||others|||1% of nom. VOUT|



Note3: Startup from Inputs of 85VAC, specified operation down to 80VAC is ensured by hysteresis. 

Note4: The products were submitted for safety files at AC-Input operation (90-264VAC). Start-up from 85VAC. Note5: Exclusively the 5V output variant holds safety certification for 400Hz input. 

Note6: Measurements are made with a 0.1µF MLCC & 10µF E-cap in parallel across output. (low ESR) 

Efficiency vs. Load 

**==> picture [227 x 204] intentionally omitted <==**

**----- Start of picture text -----**<br>
RACM40-05SK<br>100<br>90<br>80<br>70<br>60<br>50<br>40<br>30<br>20 115VAC<br>230VAC<br>10<br>0<br>0 10 20 30 40 50 60 70 80 90 100<br>Output Load [%]<br>Efficiency [%]<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
others<br>100<br>90<br>80<br>70<br>60<br>50<br>40<br>30<br>20 115VAC<br>230VAC<br>10<br>0<br>0 10 20 30 40 50 60 70 80 90 100<br>Output Load [%]<br>Efficiency [%]<br>**----- End of picture text -----**<br>


copyright © RECOM Power GmbH, all rights reserved www.recom-power.com 

Rev. 3-2025 

Page 2 

Technical Data Sheet RACM40-K Series ◊ AC/DC Power Supply 40W ◊ Input: 100V-240VAC 

**AC/DC Converter** 

|REGULATIONS (measured @ TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|REGULATIONS (measured @ TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|REGULATIONS (measured @ TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|REGULATIONS (measured @ TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|
|---|---|---|---|
|Parameter|Condition||Value|
|Output Accuracy|||±1.0% typ. / ±2.0% max.|
|Line Regulation|low line to high line|5Vout|±0.1% typ.|
|||others|±0.05% typ.|
|Load Regulation(7)|10% to 100% load|5, 12, 15Vout|0.7% typ.|
|||24, 48Vout|0.5% typ.|
|Transient Response|25% load|step change|3.0% max.|
||recovery time||500µs max.|



Note7: Operation below 10% load will not harm the converter, but specifications may not be met 

## Deviation vs. Load 

**==> picture [488 x 454] intentionally omitted <==**

**----- Start of picture text -----**<br>
RACM40-05SK RACM40-12SK<br>1.0 1.0<br>0.75 0.75<br>0.50 0.50<br>0.25 0.25<br>0 0<br>-0.25 -0.25<br>-0.50 -0.50<br>-0.75 -0.75<br>-1.0 -1.0<br>0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 100<br>Output Load [%] Output Load [%]<br>RACM40-15SK RACM40-24SK, RACM40-48SK<br>1.0 1.0<br>0.75 0.75<br>0.50 0.50<br>0.25 0.25<br>0 0<br>-0.25 -0.25<br>-0.50 -0.50<br>-0.75 -0.75<br>-1.0 -1.0<br>0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 100<br>Output Load [%] Output Load [%]<br>Deviation [%] Deviation [%]<br>Deviation [%] Deviation [%]<br>**----- End of picture text -----**<br>


copyright © RECOM Power GmbH, all rights reserved www.recom-power.com 

Rev. 3-2025 

Page 3 

Technical Data Sheet RACM40-K Series ◊ AC/DC Power Supply 

## 40W ◊ Input: 100V-240VAC 

## **AC/DC Converter** 

|PROTECTIONS (measured @ TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|PROTECTIONS (measured @ TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|PROTECTIONS (measured @ TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|PROTECTIONS (measured @ TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|PROTECTIONS (measured @ TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|
|---|---|---|---|---|
|Parameter|Type|||Value|
|Input Fuse(8)|internal|||T3.15A, slow blow type|
|Short Circuit Protection(SCP)||||hiccup, auto recovery|
|Over Voltage Protection(OVP)||||105% - 120% of nom. Vout, hiccup mode|
|Output reverse Voltage Protection|overrun rate of nominal output|||107% - 145% of nom. Vout, hiccup mode|
|Over Current Protection(OCP)||||130% - 180% of nom. Iout, hiccup mode|
|Thermal Shutdown|measured on tc point|||+130°C typ.|
|Over Voltage Category (OVC)|accordingto 61558-1|||OVC III(2000m)|
||accordingto 62368-1|||OVC II(5000m)|
|Class of Equipment||||Class II|
|Isolation Voltage(9)|accordingto 62368-1|1 minute|I/P to O/P|4kVAC|
|Isolation Resistance|VISO= 500VDC|||1GΩ min.|
|Isolation Capacitance|I/P to O/P, 100kHz/0.1V|||100pF max.|
|Insulation Grade|I/P to O/P|||reinforced|
|Means of Protection|I/P to O/P|||2MOPP|
|Medical Device Classifcation|built-in power supply|||designed to support type BF applications|
|Touch Current|264VAC/63Hz|normal condition||<100µA|
|||single fault||<500µA|



Note8: For system integration with DC operation, consider a suitable DC fuse in front of the input Note9:  For repeat Hi-Pot testing, reduce the time and/or the test voltage 

|ENVIRONMENTAL (measured @ TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|ENVIRONMENTAL (measured @ TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|ENVIRONMENTAL (measured @ TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|ENVIRONMENTAL (measured @ TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated)|
|---|---|---|---|
|Parameter|Condition||Value|
|OperatingAmbient Temperature Range|@ natural convection(0.1m/s)|refer to„DeratingGraph(10)“|-40°C to +85°C|
|Maximum Case Temperature|||+100°C|
|Temperature Coeffcient|||±0.02%/K|
|Thermal Impedance|||6.3K/W|
|Operating Altitude(10)|accordingto 62368-1/61010-1 and 60601-1||5000m(OVC II)|
||accordingto 61558-1||2000m(OVC III)|
|OperatingHumidity|non-condensing||20-95% RH max.|
|Pollution Degree(PD)|||PD2|
|Vibration|10-500Hz, 2G 10min./1cycle, period 60min. alongx,y,z axes||accordingto MIL-STD-202G|
||3 axis, 40ghalf sine, 11 ms shock||accordingto IEC 60068-2-27|
||5-500Hz,  20m/s², 1 Oct/min, 15min||accordingto IEC 60068-2-65|
||10-500Hz; RMS 23.4m/s² ; 15min||accordingto IEC 60068-2-64|
|MTBF|according to MIL-HDBK-217, G.B.|TAMB= +25°C|>1006 x 103hours|
|||TAMB= +40°C|>790 x 103hours|
|Design Lifetime|230VAC/60Hz and full load|TAMB= +40°C|>98 x 103hours|



Note10: Recognized by safety agency for safe operation up to 5000m. High altitude operation may impact the performance and lifetime. 

copyright © RECOM Power GmbH, all rights reserved www.recom-power.com 

Rev. 3-2025 

Page 4 

Technical Data Sheet RACM40-K Series ◊ AC/DC Power Supply 40W ◊ Input: 100V-240VAC 

**AC/DC Converter** 

ENVIRONMENTAL (measured @ TAMB= 25°C, nom. VIN, full load and after warm-up unless otherwise stated) 

Derating Graph[(11)] (@ Chamber and natural convection 0.1m/s) 

**==> picture [487 x 208] intentionally omitted <==**

**----- Start of picture text -----**<br>
RACM40-05SK others<br>40 40<br>35 35<br>30 30<br>25 25<br>20 20<br>15 15<br>10 10<br>115-240VAC nom. 115-240VAC nom.<br>5 5<br>100VAC nom. 100VAC nom.<br>0 0<br>-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90<br>65 85 65 85<br>Ambient Temperature [°C] Ambient Temperature [°C]<br>Output Power [W] Output Power [W]<br>**----- End of picture text -----**<br>


Note11: Output power derating for Line-input of less than 90VAC (derated linearly from 100% at 90VAC to 80% at 80VAC) 

|SAFETY & CERTIFICATIONS|SAFETY & CERTIFICATIONS||
|---|---|---|
|Certificate Type (Safety)|Report Number|Standard|
|Medical electrical equipment Part 1: General requirements for basic safety and essential performance|511305-D1001-1/A0/<br>C0-UL|ANSI/AAMI ES60601-1:2005 + A2:2010/2012<br>CAN/CSA-C22.2 No. 60601-1:14, 3rd Edition|
|Medical electrical equipment Part 1: General requirements for basic safety and essential performance||IEC60601-1:2005, 3rd Edition + AM1:2012<br>EN60601-1:2006 + A1:2013|
|Audio/Video, information and communication technology equipment - Safety requirements (CB)|60377568 001|IEC62368-1:2014 2nd Edition|
|Audio/Video, information and communication technology equipment - Safety requirements (LVD)||EN62368-1:2014 + A11:2017|
|Household and similar electrical appliances  – Safety – Part 1: General requirements (LVD)|LCS 200616140AS001|EN60335-1:2012 + A14:2019|
|Measurement methods for electromagnetic felds of household appliances and similar apparatus with<br>regard to human exposure||EN62233:2008|
|Electrical Equipment For Measurement, Control, & Laboratory Use; Part 1: General Requirements (CB)|60381411 002|IEC61010-1:2010+A1:2016, 3rd Edition|
|Electrical Equipment For Measurement, Control, & Laboratory Use; Part 1: General Requirements|60381413 002|EN61010-1:2010+A1:2019|
|Safety of power transformers, power supplies, reactors & similar products for supply voltages up to<br>1100V(CB)|60377570 001|IEC61558-1:2005 2nd Edition + A1:2009|
|Safety of power transformers, power supplies, reactors & similar products for supply voltages up to<br>1100 V Part 2: Particular requirements(CB)||IEC61558-2-16:2009 1st Edition + A1:2013|
|Safety of power transformers, power supplies, reactors & similar products for supply voltages up to<br>1100V|60377571 001|EN61558-1:2005 + A1:2009|
|Safety of power transformers, power supplies, reactors & similar products for supply voltages up to<br>1100 V Part 2: Particular requirements||EN61558-2-16:2009 + A1:2013|
|RoHS2||RoHS 2011/65/EU + AM2015/863|



copyright © RECOM Power GmbH, all rights reserved www.recom-power.com 

Rev. 3-2025 

Page 5 

**AC/DC Converter** 

## Technical Data Sheet 

## RACM40-K Series ◊ AC/DC Power Supply 40W ◊ Input: 100V-240VAC 

|SAFETY & CERTIFICATIONS|SAFETY & CERTIFICATIONS|SAFETY & CERTIFICATIONS|
|---|---|---|
|EMC Compliance according to EN60601-1-2|Condition|Standard|
|Medical electrical equipment - Part 1-2: General requirements for basic safety and essential<br>performance Collateral standard: Electromagnetic compatibility- Requirements and tests 4th Ed.|4789293779|EN60601-1-2:2015|
|ESD Electrostatic discharge immunity test|Air ±2, 4, 8, 15kV;<br>Contact ±8kV|IEC61000-4-2:2008 , Criteria A<br>EN61000-4-2:2009, Criteria A|
|Radiated, radio-frequency, electromagnetic feld immunity test|9V/m (710, 745, 780, 5240, 5500,<br>5785MHz)<br>10V/m (80-2700MHz), 27V/m (385MHz)<br>28V/m (450, 810, 870, 930, 1720, 1845,<br>1970,2450MHz)|<br>IEC/EN61000-4-3:2006 + A2:2010,<br>Criteria A|
|Fast Transient and Burst Immunity|AC Por:t L, N, L-N ±2kV|IEC/EN61000-4-4:2012, Criteria A|
|Surge Immunity|AC Port L-N: ±0.5, 1, 2kV<br>L-PE, N-PE: ±0.5, 1, 2, 4kV|IEC/EN61000-4-5:2014, Criteria B|
|Immunity to conducted disturbances, induced by radio-frequency felds|AC Port: 3Vrms (0.15-80MHz)<br>6Vrms(IMS Band)|IEC61000-4-6:2013, Criteria A<br>EN61000-4-6:2014, Criteria A|
|Power Magnetic Field Immunity|30A/m|IEC61000-4-8:2009, Criteria A<br>EN61000-4-8:2010, Criteria A|
|Voltage Dips|30%, 100%(0.5P, 1.0P)|IEC/EN61004-11:2004, Criteria A|
|Voltage Interruptions||IEC/EN61004-11:2004, Criteria B|
||||
|EMC Compliance accordingto EN55032 and EN55035|Condition|Standard|
|Electromagnetic compatibility of multimedia equipment – Emission Requirements|LCS200616044BE|EN55032:2015|
|Electromagnetic compatibility of multimedia equipment – Immunity requirements||EN55035:2017|
|ESD Electrostatic discharge immunity test|Air ±2, 4, 8kV;<br>Contact ±2, 8kV|IEC61000-4-2:2008 , Criteria A<br>EN61000-4-2:2009, Criteria A|
|Radiated, radio-frequency, electromagnetic feld immunity test|3V/m (4800-1000MHz, 1800, 2600,<br>3500, 5000MHz)|IEC/EN61000-4-3:2006 + A2:2010,<br>Criteria A|
|Fast Transient and Burst Immunity|AC Port: L, N, L-N ±1kV|IEC/EN61000-4-4:2012, Criteria B|
|Surge Immunity|AC Port: L-N: ±1kV|IEC/EN61000-4-5:2014, Criteria B|
|Immunity to conducted disturbances, induced by radio-frequency felds|AC Port: 3Vrms (0.15-80MHz)<br>3Vrms (10-30MHz)<br>1Vrms(30-80MHz)|IEC61000-4-6:2013, Criteria A<br>EN61000-4-6:2014, Criteria A|
|Power Magnetic Field Immunity|1A/m|IEC61000-4-8:2009, Criteria A<br>EN61000-4-8:2010, Criteria A|
|Voltage Dips|30%<br>100%|IEC/EN61004-11:2004, Criteria C<br>IEC/EN61004-11:2004, Criteria B|
|Voltage Interruptions|100%|IEC/EN61004-11:2004, Criteria C|
||||
|EMC Compliance accordingto EN61204-3|Condition|Standard|
|Low voltage power supplies, d.c. Output Part 3: Electromagnetic compatibility (EMC)|LCS200616049BE|IEC/EN61204-3:2018|
|ESD Electrostatic discharge immunity test|Air ±2, 4, 8kV;<br>Contact ±2, 8kV|IEC61000-4-2:2008 , Criteria A<br>EN61000-4-2:2009, Criteria A|
|Radiated, radio-frequency, electromagnetic feld immunity test|10V/m (80-1000MHz)<br>3V/m (1400-2000MHz)<br>1V/m(2000-2700MHz)|IEC/EN61000-4-3:2006 + A2:2010,<br>Criteria A|
|Fast Transient and Burst Immunity|AC Port: L, N, L-N ±2kV|IEC/EN61000-4-4:2012, Criteria B|
|Surge Immunity|AC Port: L-N: ±1kV|IEC/EN61000-4-5:2014, Criteria B|
|Immunity to conducted disturbances, induced by radio-frequency felds|AC Port: 10Vrms (0.15-80MHz)|IEC61000-4-6:2013, Criteria A<br>EN61000-4-6:2014, Criteria A|
|Power Magnetic Field Immunity|30A/m|IEC61000-4-8:2009, Criteria A<br>EN61000-4-8:2010, Criteria A|
|Voltage Dips|20, 30,60%<br>100%(0.5P, 1.0P)|IEC/EN61004-11:2004, Criteria C<br>IEC/EN61004-11:2004, Criteria B|
|Voltage Interruptions|100%|IEC/EN61004-11:2004, Criteria C|
|Limits of Voltage Fluctuations & Flicker||EN61000-3-3:2013|



copyright © RECOM Power GmbH, all rights reserved www.recom-power.com 

Rev. 3-2025 

Page 6 

**AC/DC Converter** 

## Technical Data Sheet 40W ◊ Input: 100V-240VAC 

## RACM40-K Series ◊ AC/DC Power Supply 

|SAFETY & CERTIFICATIONS|SAFETY & CERTIFICATIONS|SAFETY & CERTIFICATIONS|
|---|---|---|
|EMC Compliance|Report Number|Standard / Criterion|
|Limitations on the amount of electromagnetic interference allowed from digital and<br>electronic devices|LCS200616043BE|FCC 47 CFR Part 15 Subpart B, Class B|
|Limitations on the amount of electromagnetic interference allowed from digital and<br>electronic devices, industrial, scientifc, and medical equipment|LCS200616045BE|FCC 47 CFR Part 18|



|DIMENSION & PHYSICAL CHARACTERISTICS|||
|---|---|---|
|Parameter|Type|Value|
|Materials|case/baseplate|plastic,(UL94 V-0)|
||potting|PU,(UL94 V-0)|
||PCB|FR4,(UL94 V-0)|
|Dimension (LxWxH)||83.23 x 46.43 x 30.40mm<br>3.2 x 1.8 x 1.2 inch|
|Weight||185g  typ.<br>0.41 lbs|



**==> picture [520 x 339] intentionally omitted <==**

**----- Start of picture text -----**<br>
Dimension Drawing (mm)<br>83.23<br>tc Pinning Information<br>Pin  #  Function<br>1 VAC in (N)<br>2 VAC in (L)<br>3 -Vout<br>4 -Vout<br>5 +Vout<br>6 +Vout<br>FC = fixing centers<br>tc= temperature measurement point<br>Ø1.60<br>5.23 FC 72.7 Recommend Footprint Details<br>6 2 3<br>1 54 1 Top View 45<br>2 3 6<br>2x M3<br>8.58 68.89 5.76<br>46.43<br>30.40<br>±1.00 <6.0<br>.00<br>4<br>21.04 17.78<br>FC 35.10<br>.92<br>7<br>x 3.96<br>3<br>.63<br>5<br>**----- End of picture text -----**<br>


Tolerances: x.x= ±0.5mm x.xx= ±0.25mm 

copyright © RECOM Power GmbH, all rights reserved www.recom-power.com 

Rev. 3-2025 

Page 7 

Technical Data Sheet RACM40-K Series ◊ AC/DC Power Supply 40W ◊ Input: 100V-240VAC 

**AC/DC Converter** 

## BLOCK DIAGRAM 

**==> picture [266 x 39] intentionally omitted <==**

**----- Start of picture text -----**<br>
T3.5A<br>L +V<br>FilterInput Rectifier RectificationActive OutputFilter<br>N -V<br>**----- End of picture text -----**<br>


||Rectifier<br>T3.5A<br>Input<br>Filter|Rectifier<br>T3.5A<br>Input<br>Filter|Rectifier<br>T3.5A<br>Input<br>Filter|Active<br>Rectification<br>Output<br>Filter|
|---|---|---|---|---|
||||||
|Snubber<br>Flyback Controlle|Snubber<br>Flyback Controlle||||
|||Flyback Controlle|r<br>Isolation|Rectification<br>Controller+<br>Feedback|
||||||
||||||



|PACKAGING INFORMATION|PACKAGING INFORMATION|PACKAGING INFORMATION|
|---|---|---|
|Parameter|Type|Value|
|PackagingDimension(LxWxH)|“-T” = tray|365.0 x 210.0 x 56.0mm|
|PackagingQuantity||12pcs|
|Storage Temperature Range||-40°C to +90°C|
|Storage Humidity|non-condensing|95% max.|



The product information and specifications may be subject to changes even without prior written notice.The product has been designed for various applications; its suitability lies in the responsibility of each customer. The products are not authorized for use in safety-critical applications without RECOM’s explicit written consent. A safety-critical application is an application where a failure may reasonably be expected to endanger or cause loss of life, inflict bodily harm or damage property. The applicant shall indemnify and hold harmless RECOM, its affiliated companies and its representatives against any damage claims in connection with the unauthorized use of RECOM products in such safety-critical applications. 

copyright © RECOM Power GmbH, all rights reserved www.recom-power.com 

Rev. 3-2025 

Page 8 



## Links

- [View this product on Novapart](https://novapart.co/products/RACM40-12SK-T/ac-dc-enclosed-power-supply-psu-ite-household)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/recom-power/racm40-12sk-t/40w-ac-dc-converter/dp/3595482)
---

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