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Mean Well RPS-45-3.3 Green Power Supply 26.4W 3.3V 8A - Medical Power Supply

3" x 2" compact sizemedical safety approvedno load power consumption < 0.1Wextremely low leakage current

SKU RPS-45-3.3

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Overview

RPS-45-3.3 is the 3.3V output model of this series: rated current 8A, rated power 26.4W, typical efficiency 80.5%.

RPS-45 is a 45W highly reliable green PCB type medical power supply with a high power density on the 3” by 2” footprint. It accepts 80~264VAC input and offers various output voltages between 3.3V and 48V. The working efficiency is up to 91% and the extremely low no load power consumption is down below 0.1W. RPS-45 is able to be used for ClassⅡ(no FG) system design. The extremely low leakage current is less than 100μA. 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

3"×2" 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
Cooling by free air convection
EMI class B for class Ⅱ configuration
No load power consumption<0.1W
Extremely low leakage current
Protections: Short circuit / Overload / Over voltage
Lifetime > 50K hours
Operating altitude up to 4000 meters
3 years warranty

Specifications

RPS-45-3.3Specifications from the official datasheet (2024-11-22 edition)

OUTPUT

DC VOLTAGE: 3.3V
RATED CURRENT: 8A
CURRENT RANGE: 0 ~ 8.8A
RATED POWER: 26.4W
PEAK LOAD(10sec.)^Note.2: 29W
RIPPLE & NOISE (max.)^Note.3: 60mVp-p
VOLTAGE ADJ.RANGE: 3.1~3.6V
VOLTAGE TOLERANCE^Note.4: ±2.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±2.0%
SETUP, RISE TIME: 500ms, 30ms / 230VAC 500ms, 30ms / 115VAC at full load
HOLD UP TIME (Typ.): 30ms / 230VAC 16ms / 115VAC at full load

INPUT

VOLTAGE RANGE^Note.5: 80 ~ 264VAC
FREQUENCY RANGE: 47 ~ 63Hz
EFFICIENCY (Typ.): 80.5%
AC CURRENT (Typ.): 1.2A / 115VAC 1A / 230VAC
INRUSH CURRENT (Typ.): COLD STAR 30A/115VAC 60A/230VAC
LEAKAGE CURRENT(max.)^Note.6: Touch current< 100μA/264VAC

PROTECTION

OVERLOAD: 115 ~ 150% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: 3.8~5V Protection type : Shut down o/p voltage, re-power on to recover

ENVIRONMENT

WORKING TEMP.: -30 ~ +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.7: 4000 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
WITHSTAND VOLTAGE: I/P-O/P: 4KVAC
ISOLATION RESISTANCE: I/P-O/P: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, 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, 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: 3334.3K hrs min. Telcordia SR-332 (Bellcore) ; 726.2K hrs min. MIL-HDBK-217F (25℃)
DIMENSION (L*W*H): 76.2*50.8*24mm or 3" * 2" *0.945" inch
PACKING: 0.11Kg; 120pcs/14.2Kg/0.94CUFT

Test conditions and notes8

1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
2. 33% Duty cycle maximum within every 30 seconds. Average output power should not exceed the rated power.
3. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1μf & 47μf parallel capacitor.
4. Tolerance : includes set up tolerance, line regulation and load regulation.
5. Derating may be needed under low input voltages. Please check the derating curve for more details.
6. Touch current was measured from primary input to DC output.
7. 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).
8. 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-45-3.3 Block Diagram — Block Diagram

RPS-45-3.3 Mechanical Specification — Mechanical Specification

Typical applications

Oral irrigator
Hemodialysis machine
Medical computer monitors
Sleep apnea devices

Downloads

Certificates7

Mean Well E227340 UL Certificate PDF Download

Mean Well 0147476-EAC Certificate PDF Download

Mean Well RPS-45-65-TUV Certificate PDF Download

Mean Well RPS-45-65-CB Certificate PDF Download

Mean Well RPS-45-EMC Certificate PDF Download

Mean Well RPS-45-CE-dec Certificate PDF Download

Mean Well RPS-45-UK-dec Certificate PDF Download

Test reports1

Mean Well RPS-45-3.3 Test Report PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the RPS-45-3.3 for a 3.3V embedded controller or single-board computer inside industrial equipment?

Yes, this model is a constant-voltage 3.3V supply rated for up to 8A and 26.4W. That makes it suitable for 3.3V embedded control hardware as long as the total load stays within those output limits.

Is the RPS-45-3.3 suitable for powering 3.3V logic boards in medical or laboratory devices?

It can fit 3.3V logic and control sections that need a regulated 3.3V output with up to 8A available. This model is medical safety approved and also features extremely low leakage current, which is relevant for medical and lab equipment designs.

Can this 3.3V power supply run low-voltage automation electronics in a compact enclosure?

Yes, it is intended for constant-voltage 3.3V loads and is rated at 26.4W. Its 76.2 x 50.8 x 24.0 mm size and 0.11 kg weight help when space is limited inside compact automation assemblies.

Is the RPS-45-3.3 a good fit for 3.3V sensor hubs or interface boards that need higher current than small board supplies provide?

It is a stronger option when the load needs 3.3V at up to 8A, which is more current than many small board-level supplies provide. Buyers should size the load against the 26.4W maximum output rather than voltage alone.

How does the RPS-45-3.3 compare with other RPS-45 models?

Within the RPS-45 group, the sibling models are RPS-45-5 at 40W, 5V, 8A; RPS-45-7.5 at 40.5W, 7.5V, 5.4A; RPS-45-12 at 45.6W, 12V, 3.8A; RPS-45-15 at 45W, 15V, 3A; RPS-45-24 at 45.6W, 24V, 1.9A; and RPS-45-48 at 45.1W, 48V, 0.94A. The RPS-45-3.3 is the 3.3V version and is rated for 26.4W at 8A.

Can the RPS-45-3.3 be used in outdoor or harsh-temperature locations?

The operating temperature range is -30C to +70C, so it can handle a wide temperature span inside protected equipment. No IP rating is listed, so it is better suited to indoor or enclosed use rather than exposed outdoor locations.

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