FCS40US48

AC/DC Open Frame Power Supply (PSU), ITE, Household & Medical, 1 Output, 40 W, 80V AC to 264V AC

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Manufacturer: XP POWER
Product type: AC / DC Open Frame Power Supplies
No. of Outputs:1 Output; Power Rating (Covection Cooling):40W; Power Rating (Forced Cooling):-; Input Voltage VAC:80V AC to 264V AC; Power Supply Output Type:Adjustable, Fixed; Output Vol
SVHC: No SVHC (15-Jan-2018)
Product Range: FCS40 Series
No. of Outputs: 1 Output
Output Power Max: 40W
Input Voltage VAC: 80V AC to 264V AC
Input Voltage AC Max: 264V
Input Voltage AC Min: 80V
Power Supply Output Type: Adjustable, Fixed
Output Current - Output 1: 830mA
Output Current - Output 2: -
Output Current - Output 3: -
Output Current - Output 4: -
Output Voltage - Output 1: 48VDC
Output Voltage - Output 2: -
Output Voltage - Output 3: -
Output Voltage - Output 4: -
Power Supply Applications: ITE, Household & Medical
Power Rating (Forced Cooling): -
Power Rating (Convection Cooling): 40W

Delivery and price
Units per pack	100
Price	15.84 €
Current stock	10+
Lead time	30 days

Datasheet

FCS40 series 

## 40W 

## **AC-DC power supplies** 

76.2 x 50.8mm (3” X 2”) open frame 40W AC-DC power supplies for household appliance, medical (2 x MOPP) & ITE applications 

The FCS40 low-profile, open-frame power supplies address the need for low-cost 40W solutions that support a broad range of applications within the medical (2 x MOPP), domestic/household and ITE/industrial electronics sectors. 

The FCS40 is designed for integration into multiple end equipment markets with international agency approvals, high efficiency and low emissions. 

## **Features** 

- f 40W convection cooled 

- f 76.2 x 50.8mm (3“ x 2“) footprint, 26.4mm profile 

- f Regulated single outputs 12V to 48VDC 

- f Input range 80 to 264VAC 

- f Medical, ITE & household appliance approvals 

- f Class I & Class II installations 

- f Less than 0.3W no load input power 

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Applications<br>eR<br>Instrumentation Robotics IoT<br>@)<br>Process control<br>**----- End of picture text -----**<br>


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Dimensions<br>50.8 x 76.2 x 26.4mm (2.00” x 3.00” x 1.04”)<br>**----- End of picture text -----**<br>


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Documentation<br>**----- End of picture text -----**<br>


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Click the link or scan the code<br>: xppower.com<br>**----- End of picture text -----**<br>


- f 3 year warranty 

## **Models & ratings** 

|Model number|Output voltage|Output current|Output power|Efficiency(1)|
|---|---|---|---|---|
|FCS40US12|12.0V|3.34A|40W|82%|
|FCS40US15|15.0V|2.67A||85%|
|FCS40US18|18.0V|2.23A||85%|
|FCS40US24|24.0V|1.67A||85%|
|FCS40US36|36.0V|1.11A||84%|
|FCS40US48|48.0V|0.83A||86%|



Notes: 

1. Typical efficiency measured at full load and 230VAC input. 

1 C] 

**AC-DC power supplies** 

## FCS40 series 

## **Input** 

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Characteristic Minimum Typical Maximum Units Notes & conditions<br>**----- End of picture text -----**<br>


|Characteristc|Minimum|Typical|Maximum|Units|Notes & conditons|
|---|---|---|---|---|---|
|||||||
|Input Voltage - Operating|80|115/230|264|VAC|Derate output from 100% at 90VAC to 90% at 85VAC and 80% at 80VAC|
|Input Frequency|47|50/60|63|Hz|Agency approval, 47-63Hz|
|Power Factor|||||EN61000-3-2 class A|
|Input Current - Full Load||0.8/0.4||A|115/230VAC|
|Inrush Current|||60|A|230VAC cold start, 25°C|
|Earth Leakage Current|||270|µA|264 VAC/60Hz|
|No load Input Power|||0.3|W||
|Input Protection|T3.15A/250A, 250V Internal fuse ftted in line and neutral.|||||



## **Output - main output** 

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Characteristic Minimum Typical Maximum Units Notes & conditions<br>**----- End of picture text -----**<br>


|Characteristc|Minimum|Typical|Maximum|Units|Notes & conditons|
|---|---|---|---|---|---|
|||||||
|Output Voltage|12||48|VDC|See models and ratings table|
|Initial Set Accuracy|||±1|%|50% load, 115/230VAC|
|Output Voltage Adjustment|±10|||%||
|Minimum Load|No minimum load required|||||
|Start Up Delay||1|2|s||
|Output Rise Time|||50|ms||
|Hold Up Time|8.3/20|||ms|Min at full load 115/230VAC|
|Line Regulation|||±0.5|%|90-264 VAC|
|Load Regulation|||1|%|0-100% load.|
|Transient Response|||4|%|Recovery within 1% in less than 500µsfor a 50-75% and 75-50% load<br>step|
|Over/Undershoot|||5|%|Full load|
|Ripple & Noise|||1|% pk-pk|20MHz bandwidth|
|Overvoltage Protection|115||140|%Vnom|Continuous trip and restart (hiccup)|
|Overload Protection|110||180|% I nom||
|Short Circuit Protection|Continuous trip and restart (hiccup)|||||
|Temperature Coeffcient|||0.05|%/˚C||



## **General** 

|Characteristc|Minimum|Typical|Maximum|Units|Notes & conditons|
|---|---|---|---|---|---|
|Effciency||84||%|115/230VAC, 100% load|
|Isolation:  Input to output<br>Input to ground<br>Output to ground|4000|||VAC|2 MOPP|
||1500|||VAC|1 MOPP|
||1500|||VAC|1 MOPP at output voltage|
|Power density|||0.39 (6.4)|W/cm3(W/in3)||
|MTBF|500|||khrs|MIL-HDBK-217F, Notice 2 +25°C GB|
|Weight||86.0 (0.19)||g (lbs)||



Specifications subject to change without notice. 

2 

**AC-DC power supplies** 

## FCS40 series 

## **Environmental** 

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Characteristic Minimum Typical Maximum Units Notes & conditions<br>**----- End of picture text -----**<br>


|Characteristc|Minimum|Typical|Maximum|Units|Notes & conditons|
|---|---|---|---|---|---|
|||||||
|Operating temperature|-25||+70|°C|See derating curve|
|Storage temperature|-40||+85|°C||
|Humidity|5||95|%RH|Non-condensing|
|Operating altitude|||5000/4000|m|ITE/Medical|
|Shock|±3 x 30g shocks in each plane, total 18 shocks. 30g = 11ms (+/- 0.5msecs), half sine. Conforms to EN60068-2-27|||||
|Vibration|Single axis 10-500 Hz at 2g sweep and endurance at resonance in all 3 planes. Conforms to EN60068-2-6|||||



## **Emissions - EMC** 

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Phenomenon Standard Test level Notes & conditions<br>**----- End of picture text -----**<br>


|Phenomenon|Standard|Test level|Notes & conditons|
|---|---|---|---|
|||||
|Conducted|EN55011/32|Class B|For class I applications, ensure the two mounting holes marked with the<br>ground symbol are connected together and to safety earth to meet<br>conducted and radiated emissions.|
|Radiated|EN55011/32|Class A|Class B with Wurth Electronics 742 700 91 with 4 turns on AC Input.<br>For class I applications, ensure the two mounting holes marked with the<br>ground symbol are connected together and to safety earth to meet<br>conducted and radiated emissions.|
|Harmonic current|EN61000-3-2|Class A||
|Voltage ficker|EN61000-3-3|||



## **Safety approvals** 

|Certfcaton|Standard|Notes & Ccnditons|
|---|---|---|
|CB|IEC60950-1:2005, IEC62368-1:2014|Information technology|
||IEC60601-1 Ed 3.1 Including Risk Management|Medical|
||IEC60335-1|Household|
|UL|cUL62368-1|Information technology|
||ANSI/AAMI ES60601-1: & CSA C22.2 No.6061-1:08|Medical|
|EN|EN62368-1|Information technology|
|CE|Meets all applicable directives||
|UKCA|Meets all applicable legislation||
||||
|Isolaton|Standard|Notes & Ccnditons|
|Primary to Secondary|2 x MOPP (Means of Patient Protection)|IEC60601-1 Ed 3.1|
|Primary to Earth|1 x MOPP (Means of Patient Protection)||
|Secondary to Earth|1 x MOPP (Means of Patient Protection at output voltage)||



Specifications subject to change without notice. 

3 

**AC-DC power supplies** 

## FCS40 series 

## **Immunity - EMC** 

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Phenomenon Standard Test Level Criteria Notes & conditions<br>**----- End of picture text -----**<br>


|Phenomenon|Standard|Test Level|Criteria|Notes & conditons|
|---|---|---|---|---|
||||||
|Medical device EMC|IEC60601-1-2|Ed.4.0 : 2014|as below||
|Low voltage PSU EMC|EN61204-3|High severity level|as below||
|ESD|EN61000-4-2|±8kV contact, ±15kV air|A||
|Radiated|EN61000-4-3|3|A||
|EFT|EN61000-4-4|3|A||
|Surge|EN61000-4-5|Installation class 3|A||
|Conducted|EN61000-4-6|3|A||
|Magnetic felds|EN61000-4-8|4|A||
|Dips and interruptions|EN61000-4-11<br>(100VAC)|Dip 100% (0VAC), 8.4ms|A|25% derating|
|||Dip 100% (0VAC), 16.7ms|B||
|||Dip 60% (40VAC), 200ms|B||
|||Dip 30% (70VAC), 500ms|B||
|||Dip 20% (80VAC), 5000ms|B||
|||Int 100% (0VAC), 5000ms|B||
||EN61000-4-11<br>(115VAC)|Dip 100% (0VAC), 8.4ms|A||
|||Dip 100% (0VAC), 16.7ms|B||
|||Dip 60% (40VAC), 200ms|B||
|||Dip 30% (70VAC), 500ms|B||
|||Dip 20% (80VAC), 5000ms|B||
|||Int 100% (0VAC), 5000ms|B||
||EN61000-4-11<br>(240VAC)|Dip 100% (0VAC), 10ms|A||
|||Dip 100% (0VAC), 20ms|B||
|||Dip 60%  (96VAC), 200ms|B||
|||Dip 30%  (168VAC), 500ms|B||
|||Dip 20% (192VAC), 5000ms|B||
|||Int 100% (0VAC), 5000ms|B||
||EN60601-1-2<br>(100VAC)|Dip 100% (0VAC), 10ms|A|20% derating|
|||Dip 100% (0VAC), 20ms|A|50% derating|
|||Dip 60%  (40VAC), 100ms|A|75% derating|
|||Dip 30% (70VAC), 500ms|A||
|||Int 100% (0VAC), 5000ms|B||
||EN60601-1-2<br>(240VAC)|Dip 100% (0VAC), 10ms|A||
|||Dip 100% (0VAC), 20ms|A||
|||Dip 60%  (96VAC), 100ms|A||
|||Dip 30% (168VAC), 500ms|A||
|||Int 100% (0VAC), 5000ms|B||



Specifications subject to change without notice. 

4 

**AC-DC power supplies** 

## FCS40 series 

## **Application notes** 

## Thermal considerations 

Temperature derating curve 

In order to ensure safe operation of the PSU in the most adverse conditions permitted in the end-use equipment, the temperature of the components listed in the table must not be exceeded. 

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100<br>in the table must not be exceeded.<br>See mechanical drawings for component locations. Temperature should be<br>monitored using K type thermocouples placed on the hottest part of the com-<br>50 ponent (out of any direct air flow).<br>Temperature Measurements (Ambient ≤50°C)<br>Component Max temperature (°C)<br>0<br>-25 -20 0 +50 +70 TX1 120°C<br>Q1 110°C<br>Ambient Temperature (ºC)<br>C3 105°C<br>C10 105°C<br>Output Load (%) may not be met<br>Some specification parameters<br>**----- End of picture text -----**<br>


See mechanical drawings for component locations. Temperature should be monitored using K type thermocouples placed on the hottest part of the component (out of any direct air flow). 

FCS40US12 ripple and noise is <1.5% from -25 °C to 0 °C reducing to <1% after 1 minute warm up. 

## **Mechanical details** 

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3.2 76.2 (3.0)<br>(0.126)<br> 3.2 (0.126)<br>69.8 (2.75)<br>ø3.4 (ø0.134)<br>thru in<br>4 positions<br>Neutral C10<br>50.8 C3 +VE<br>(2.0) Line -VE<br>44.4<br>TX1<br>(1.75)<br>Output Voltage<br>Adjustment<br>Q1<br>23.4<br>(0.92) 26.4<br>(1.04)<br>3.0<br>(0.12)<br>Mates with JST housing VHR-2N and JST Series SVH-21T-P1.1<br>CN1 - Input Connector CN2 - Output Connector<br>crimp terminals.<br>Pin 1 Line Pin 1 +Vout Mounting hole marked with the ground symbol must be<br>Pin 2 Not Fitted Pin 2 -Vout connected to safety earth for class I applications<br>Pin 3 Neutral<br>**----- End of picture text -----**<br>


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Notes: 

1. All dimensions in mm (inches). Tolerance .xx =  0.50 (±0.02); .xxx = 0.25 (±0.01) 

2. Weight: 86g (0.19lbs) 

Specifications subject to change without notice18 August 2025 . 

**5**

Updated at June 8, 2026

XP Power is a globally recognized leader in the design and manufacture of critical power solutions for the electronics industry. With a steadfast commitment to total quality and in-house engineering expertise, the company delivers highly reliable components that support complex applications across the industrial, healthcare, and technology sectors. Their extensive manufacturing capabilities provide engineers with a broad and dependable source for innovative power products. Our extensive portfolio of XP Power components is heavily focused on robust power and line protection. The core of this offering features a vast selection of high-performance AC/DC converters, designed to meet the rigorous efficiency and footprint demands of modern electronic systems. Complementing these are numerous reliable DC/DC converters, providing versatile options for precise voltage regulation and seamless system integration. Beyond their primary power conversion ranges, XP Power manufactures specialized components to address specific design challenges. Our selection includes essential passive components, such as power line filters for effective EMC and RFI suppression, ensuring signal integrity and strict regulatory compliance. Additionally, we provide dedicated AC/DC LED power supplies tailored for reliable, long-lasting performance in advanced commercial and industrial lighting applications.

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