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Mean Well RPS-75-3.3 Green Power Supply 49.5W 3.3V 15A - Medical Power Supply

5" x 3" compact sizemedical safety approvedno load power consumption < 0.75Wlifetime > 80K hours

SKU RPS-75-3.3

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Overview

RPS-75-3.3 is the 3.3V output model of this series: rated current 15A, rated power 49.5W, typical efficiency 73%.

RPS-75 is a 75W highly reliable green PCB type medical power supply with a high power density on the 5” by 3” footprint. It accepts 90~264VAC input and offers various output voltages between 3.3V and 48V. The working efficiency is up to 86% and the extremely low no load power consumption is down below 0.75W. RPS-75 is able to be used for ClassⅠ (with FG) system design. The extremely low leakage current is less than 150μA. In addition, it conforms to international medical regulations (2*MOPP) and EMC BS EN/EN55011, perfectly fitting all kinds of BF rated “patient contact” medical system equipment.

Features

5"×3" compact size
Medical safety approved (2 x MOPP) according to ANSI/AAMI ES60601-1 and IEC/BS EN/EN60601-1
Suitable for BF application with appropriate system consideration
75W convection,100W force air
EMI Class B for ClassⅠconfiguration
No load power consumption<0.75W
Remote sense functiom
Protections: Short circuit / Overload / Over voltage
Lifetime > 80K hours
Operating altitude up to 3000 meters
3 years warranty

Specifications

RPS-75-3.3Specifications from the official datasheet (2024-11-22 edition)

OUTPUT

DC VOLTAGE: 3.3V
RATED CURRENT: 15A
CURRENT RANGE: 0 ~ 20A
RATED POWER: 49.5W
PEAK LOAD (23.5CFM): 66W
RIPPLE & NOISE (max.)^Note.2: 60mVp-p
VOLTAGE ADJ. RANGE: 2.9 ~ 3.6V
VOLTAGE TOLERANCE^Note.3: ±2.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±1.5%
SETUP, RISE TIME: 500ms, 30ms/230VAC 500ms, 30ms/115VAC at full load
HOLD UP TIME (Typ.): 90ms/230VAC 20ms/115VAC at full load

INPUT

VOLTAGE RANGE: 90 ~ 264VAC 127 ~370VDC
FREQUENCY RANGE: 47 ~ 63Hz
EFFICIENCY(Typ.): 73%
AC CURRENT (Typ.): 1.5A/115VAC 1A/230VAC
INRUSH CURRENT (Typ.): COLD START 25A/115VAC 50A/230VAC
LEAKAGE CURRENT(max.)^Note.4: Earth leakage current < 150μA/264VAC , Touch current < 100μA/264VAC

PROTECTION

OVERLOAD: 140 ~ 180% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed.
OVER VOLTAGE: 3.8 ~ 4.5V Protection type : Shut down o/p voltage, re-power to recover

ENVIRONMENT

WORKING TEMP.: -20 ~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY: 20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +85℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 50℃)
VIBRATION: 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
OPERATING ALTITUDE^Note.5: 3000 meters

SAFETY & EMC

SAFETY STANDARDS: IEC 60601-1:2005+A1+A2, TUV BS EN/ EN 60601-1:2006+A1+A12+A2, ANSI/AAMI ES60601-1:2005+A2 CAN/CSA C22.2 No. 60601-1:2014+A2, EAC TP TC 004 approved; Design refer to BS EN/EN60335-1(by request)
ISOLATION LEVEL: Primary-Secondary:2xMOPP, Primary-Earth:1xMOPP
WITHSTAND VOLTAGE: I/P-O/P:4KVAC I/P-FG:2KVAC O/P-FG:1.5KVAC
ISOLATION RESISTANCE: I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION: Parameter Standard Test Level

Conducted emission BS EN/EN55011 (CISPR11) Class B
Radiated emission BS EN/EN55011 (CISPR11) Class B
Harmonic current BS EN/EN61000-3-2 Class A
Voltage flicker BS EN/EN61000-3-3
EMC IMMUNITY: BS EN/EN55035, BS EN/EN60601-1-2

Parameter Standard Test Level

ESD BS EN/EN61000-4-2 Level 4, 15KV air; Level 4, 8KV contact
RF field susceptibility BS EN/EN61000-4-3 Level 3, 10V/m( 80MHz~2.7GHz ) Table 9, 9~28V/m( 385MHz~5.78GHz )
EFT bursts BS EN/EN61000-4-4 Level 3, 2KV
Surge susceptibility BS EN/EN61000-4-5 Level 4, 4KV/Line-FG; 2KV/Line-Line
Conducted susceptibility BS EN/EN61000-4-6 Level 3, 10V
Magnetic field immunity BS EN/EN61000-4-8 Level 4, 30A/m
Voltage dip, interruption BS EN/EN61000-4-11 100% dip 1 periods, 30% dip 25 periods, 100% interruptions 250 periods

Parameter	Standard	Test Level
Conducted emission	BS EN/EN55011 (CISPR11)	Class B
Radiated emission	BS EN/EN55011 (CISPR11)	Class B
Harmonic current	BS EN/EN61000-3-2	Class A
Voltage flicker	BS EN/EN61000-3-3

Parameter	Standard	Test Level
ESD	BS EN/EN61000-4-2	Level 4, 15KV air; Level 4, 8KV contact
RF field susceptibility	BS EN/EN61000-4-3	Level 3, 10V/m( 80MHz~2.7GHz ) Table 9, 9~28V/m( 385MHz~5.78GHz )
EFT bursts	BS EN/EN61000-4-4	Level 3, 2KV
Surge susceptibility	BS EN/EN61000-4-5	Level 4, 4KV/Line-FG; 2KV/Line-Line
Conducted susceptibility	BS EN/EN61000-4-6	Level 3, 10V
Magnetic field immunity	BS EN/EN61000-4-8	Level 4, 30A/m
Voltage dip, interruption	BS EN/EN61000-4-11	100% dip 1 periods, 30% dip 25 periods, 100% interruptions 250 periods

OTHERS

MTBF: 2837.6K hrs min. Telcordia SR-332 (Bellcore) ; 446.8K hrs min. MIL-HDBK-217F (25℃)
DIMENSION (L*W*H): 127*76.2*31mm or 5" * 3" *1.22" inch
PACKING: 0.26Kg; 63pcs/16.3Kg/1.28CUFT

Test conditions and notes7

1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1μF & 47μF parallel capacitor.
3. Tolerance : includes set up tolerance, line regulation and load regulation.
4. Touch current was measured from primary input to DC output.
5. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).
6. Heat Sink HS1,HS2,HS3 can not be shorted.
7. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on a 360mm*360mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )

Technical drawings

RPS-75-3.3 Block Diagram — Block Diagram

RPS-75-3.3 Derating Curve — Derating Curve

RPS-75-3.3 Mechanical Specification — Mechanical Specification

Typical applications

Oral irrigator
Hemodialysis machine
Medical computer monitors
Sleep apnea devices

Downloads

Certificates4

EMC Certificate (RPS-75)(EN) PDF Download

UL Certificate(RPS-75)(EN) PDF Download

CB Certificate (RPS-75)(EN) PDF Download

TUV Certificate (RPS-75)(EN) PDF Download

Test reports1

Test Report(RPS-75-3.3)(EN) PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the RPS-75-3.3 for 3.3V embedded processors or logic boards?

Yes, if the electronics require a constant 3.3V supply and the total load stays within 15A and 49.5W. That makes it better suited to high-current low-voltage logic systems than to equipment needing higher DC outputs.

Is this 3.3V model suitable for FPGA, MCU, or digital control hardware?

It can be a fit for digital control hardware that needs regulated 3.3V DC and draws no more than 15A. The 49.5W rating is the key limit to check when sizing it for dense logic or computing loads.

Can the RPS-75-3.3 be used in industrial or medical electronics that run on 3.3V rails?

It is appropriate for equipment built around a 3.3V power rail, provided the load remains at or below 15A and 49.5W. Its medical safety approval can matter for medical electronics, but the application still needs a true 3.3V constant voltage source.

What is different about the RPS-75-3.3 compared with the other RPS-75 models?

The RPS-75 family offers 3.3V 15A 49.5W, 5V 14A 70W, 12V 6.3A 75.6W, 15V 5A 75W, 24V 3.2A 76.8W, 36V 2.1A 75.6W, and 48V 1.6A 76.8W versions. The RPS-75-3.3 is the lowest-voltage, highest-current option in this series.

Can this 3.3V power supply be used in outdoor equipment?

The operating temperature range is -20°C to +70°C, which supports use in a wide range of protected environments. Because no IP rating is listed in the provided specs, it should not be treated as an exposed outdoor power supply without an enclosure.

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Model	Power	Voltage	Current
Mean Well RPS-75-15 Green Power Supply 75W 15V 5A - Medical Power Supply	75W	15V	5A	View
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