MEAN WELL RQB40W12-110S54 40.014W 54V 0.741A On Board Type (Module Potted)

Part numberRQB40W12-110S54
Output voltage 54 V
Rated current 0.741 A
Rated power 40.014 W
$73.39Excluding tax and shipping
Ships in 3–5 business daysLead time is the time from order to dispatch, and does not include transit time.
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RQB40W12 model selection table Brick Type - 1/4 Brick
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Key specifications

Complete technical specifications
Output
Output voltage 54 V
Rated current 0.741 A
Rated power 40.014 W
Typical efficiency 90 %
Mechanical
Cooling Free-air convection
Operating temperature -40 to 90 °C
Dimensions (L × W × H) 57.9 × 36.8 × 12.7 mm

Is this model right for you?

Within the RQB40W12 series, the RQB40W12-110S54 lists 54 V, 0.741 A, 40.014 W, 90%. By comparison RQB40W12-110S05 lists 5 V, 8 A, 40 W, 88%; RQB40W12-110S12 lists 12 V, 3.333 A, 39.996 W, 89%; RQB40W12-110S48 lists 48 V, 0.833 A, 39.984 W, 89%. Select the model whose output voltage, output current, and rated power match the installation.

Product overview

The RQB40W12-110S54 is a DC/DC On Board Type (Module Potted) product from MEAN WELL, part of the Brick Type - 1/4 Brick family and RQB40W12 series. It has an input voltage range of 14 ~ 160Vdc. The case is an aluminum base plate with plastic case, and cooling is by free-air convection. Dimensions are 57.9 × 36.8 × 12.7 mm and net weight is 68 g.

Where this model fits

The RQB40W12-110S54 is used in Embedded & Board-level Design. Its aluminum base plate with plastic case and free-air convection cooling are relevant where the module is soldered to a host board. The input voltage range is 14 ~ 160Vdc, and dimensions are 57.9 × 36.8 × 12.7 mm with a net weight of 68 g.

Complete technical specifications

Rev. 2025-10-09
Output
Output voltage 54 V
Rated current 0.741 A
Rated power 40.014 W
Input
AC input range 14 ~ 160Vdc
DC input range 14–160 VDC
Typical efficiency 90 %
Protection
Overload Protected
Over voltage Protected
Over temperature Protected
Recovers automatically after fault condition is removed
Environmental
Operating temperature -40 to 90 °C
Storage temperature -55 to 125 °C
Vibration EN61373
Mechanical
Dimensions (L × W × H) 57.9 × 36.8 × 12.7 mm
Net weight 68.0 g
Cooling Free-air convection
Fan Not supported
Case material Aluminum base plate with plastic case
Safety & compliance
Safety standards CB IEC62368-1, UL62368-1, EAC TP TC 020/2011 approved

These approvals are recorded for the series as a whole. Where a line names particular models or ratings, it applies only to those — read it against this part number, and ask us for the certificate if your approval process needs it.

Identification
Part number RQB40W12-110S54
Brand MEAN WELL
Category DC/DC On Board Type (Module Potted)
Series RQB40W12

Approvals and compliance

From the manufacturer's datasheet for this series

United States

  • UL

    UL Listing or Recognition means UL Solutions tested samples against the applicable UL safety standard and audits the factory that builds them. A UL file number is the usual evidence an inspector or specifier asks for in North America.

International

  • CB Scheme

    A CB Test Certificate reports testing against the IEC standard and is accepted by member certification bodies as the basis for a national approval. It shortens a new-country approval rather than granting market access by itself, so it is the most useful item on this list when you are entering a market that is not shown here.

Eurasian Economic Union

  • EAC

    Conformity with the Eurasian Economic Union technical regulations, covering Russia, Belarus, Kazakhstan, Armenia and Kyrgyzstan. TP TC 004 is the low-voltage regulation and TP TC 020 the electromagnetic-compatibility one, so which number appears tells you what was assessed.

Isolation and electromagnetic compatibility
Withstand voltage I/P-O/P:3KVDC or 2KVAC
Isolation resistance I/P-O/P:1000M Ohms / 500VDC / 25℃/ 70% RH non-condensing
EMC emission Parameter Standard Test Level / Note

Standards certified against

  • IEC62368-1
  • UL62368-1
Read the datasheet's exact wording

CB IEC62368-1, UL62368-1, EAC TP TC 020/2011 approved

Reproduced unedited from the manufacturer's datasheet. Where an approval covers only some models, the wording says so. Ask us for the certificate itself if your approval process needs it.

Certificates

Certificate copy supplied with this model.

  • CE · R50453592

    100%
    CE certificate R50453592

    CE · Certificate number R50453592

Ordering & shipping information

Order and delivery terms
Part number RQB40W12-110S54
Minimum order quantity 1
Country of origin China
Typical packed weight 223 g
Unit weight 68 g

Downloads

RQB40W12 model comparison

View all models
ModelOutput voltageRated currentRated powerPriceAvailability
RQB40W12-110S54 54 V0.741 A40.014 W$73.39
Ships in 3–5 business days
RQB40W12-110S1212 V3.333 A39.996 W$170.86
Ships in 3–5 business days

RQB40W12-110S54: 54 V output; the rest of the series runs 5 V to 48 V.

RQB40W12-110S54: 0.741 A output current; the rest of the series runs 0.833 A to 8 A.

RQB40W12-110S54: 90% typical efficiency; RQB40W12-110S05: 88%; RQB40W12-110S12 and RQB40W12-110S48: 89%.

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Technical data source

Primary source
MEAN WELL
Datasheet revision
2025-10-09
Last verified

View the manufacturer datasheet How we source and verify product data

Specifications are transcribed from the manufacturer datasheet and are subject to change without notice. The current manufacturer datasheet governs in case of any discrepancy.