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Mean Well MPM-90-48ST Power Supply 90W 48V 1.88A

Name: Mean Well MPM-90-48ST Power Supply 90W 48V 1.88A
Brand: Mean Well
SKU: MPM-90-48ST
Price: 33.71 USD
Availability: InStock

encapsulatedcompact sizemedical safety approvedno load power consumption < 0.1Wextremely low leakage current

SKU MPM-90-48ST

$33.71 USD

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Overview

MPM-90-48ST is the 48V output model of this series: typical efficiency 93%.

MPM-90 is a 90W high density and small size (87x52x29.5mm) AC/DC PCB-mount module type medical grade power supply . It features the operation for 80~264VAC, a low no load power consumption less than 0.1W, a high efficiency up to 93%, Class Ⅱ (no FG) double insulation, outstanding dissipation, 2~5G anti-vibration by model, high EMC performance, 4KVAC isolation, etc. The design observes IEC / BS EN/ EN60601 - 1 and ANSI/AAMI ES60601 - 1version three with 2 x MOPP level and ultra-low leakage current (< 100μ A). It is very suitable for BF (patient contact) type medical device or relevant equipment.

Features

3.43"x2.05" compact size
PCB,chassis or screw terminal mounting version
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
No load power consumption<0.1W
Extremely low leakage current
Wide operating temp. range -30 ~ +80℃
EMI Class B without additional components
Isolation Class Ⅱ
Protections: Short circuit / Overload / Over voltage
No minimum load required
Operating altitude up to 4000 meters( Note.7)
100W peak(10 sec.)
3 years warranty

Specifications

MPM-90-48STSpecifications from the official datasheet (2024-10-30 edition)

OUTPUT

DC VOLTAGE: 48V
CURRENT Peak(10 sec.): 2.07A
CURRENT Convection: 1.88A
RATED POWER Peak(10 sec.)^Note.2: 99.2W
RATED POWER Convection: 90.2W
RIPPLE & NOISE (max.)^Note.3: 240mVp-p
VOLTAGE TOLERANCE^Note.4: ±2.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME: 1000ms, 30ms/230VAC 1000ms, 30ms/115VAC at full load
HOLD UP TIME (Typ.): 30ms/230VAC 10ms/115VAC at full load

INPUT

VOLTAGE RANGE^Note.5: 80 ~ 264VAC 113 ~ 370VDC
FREQUENCY RANGE: 47 ~ 63Hz
EFFICIENCY (Typ.): 93%
AC CURRENT (Typ.): 1.9A/115VAC 1.1A/230VAC
INRUSH CURRENT (Typ.): COLD START 30A/115VAC 65A/230VAC
LEAKAGE CURRENT (max.)^Note.6: Touch current <100μA/264VAC

PROTECTION

OVERLOAD: 115% ~ 160% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: 50.4 ~ 64.8V Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE: Protection type : Shut down o/p voltage, re-power on to recover

ENVIRONMENT

WORKING TEMP.: -30 ~ +80℃ (Refer to "Derating Curve")
WORKING HUMIDITY: 20 ~ 90% RH non-condensing
STORAGE TEMP.: -40 ~ +85℃
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 50℃)
SOLDERING TEMPERATURE: Wave soldering: 265℃,5s (max.); Manual soldering: 390℃,3s (max.)
VIBRATION: Blank:10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes ST:10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes
OPERATING ALTITUDE^Note.7: 4000 meters / OVCⅡ

SAFETY & EMC

SAFETY STANDARDS: IEC 60601-1:2005+A1, 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 BS EN/EN55011 (CISPR11) Class B
Radiated 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 3, 1KV/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 >95% dip 0.5 periods, 30% dip 25 periods, >95% interruptions 250 periods

Parameter	Standard	Test Level
Conducted	BS EN/EN55011 (CISPR11)	Class B
Radiated	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 3, 1KV/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	>95% dip 0.5 periods, 30% dip 25 periods, >95% interruptions 250 periods

OTHERS

MTBF: 4548.9K hrs min. Telcordia SR-332 (Bellcore) ; 570.5K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: PCB mounting style : 87*52*29.5mm (L*W*H) Screw terminal style : 109*52*33.5mm (L*W*H)
PACKING: PCB mounting style : 0.197Kg;60pcs/12.8Kg/0.94CUFT Screw terminal style :0.219Kg;50pcs/12Kg/0.56CUFT

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. 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

MPM-90-48ST Block Diagram — Block Diagram

MPM-90-48ST Derating Curve — Derating Curve

MPM-90-48ST Mechanical Specification — Mechanical Specification

Typical applications

Portable medical device
Mobile clinical workstation
Medical computer monitor
Medical examination instrument

Downloads

Certificates6

Mean Well MPM-45-65-90-EMC Certificate PDF Download

Mean Well MPM-45-65-90-CB Certificate PDF Download

Mean Well MPM-45-65-90-TUV Certificate PDF Download

Mean Well MPM-45-65-90-CE-dec Certificate PDF Download

Mean Well MPM-45-65-90-UK-dec Certificate PDF Download

Mean Well 0147476-EAC Certificate PDF Download

Test reports1

Mean Well MPM-90-48 Test Report PDF Download

Catalogues1

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the MPM-90-48ST in a 48V industrial or embedded system?

Yes, if the equipment is designed for a 48V constant voltage input and stays within 90.2W and 1.88A. That makes it relevant for 48V industrial, embedded, and automation equipment that needs a fixed 48V DC rail. It is not interchangeable with 12V, 15V, or 24V versions unless the load is built for 48V.

Is the MPM-90-48ST appropriate for medical or low-leakage electronic equipment using 48V DC?

The product is listed as medical safety approved and features extremely low leakage current, which can matter in medical and sensitive electronic designs. Electrically, it provides 48V constant voltage output up to 90.2W and 1.88A. The equipment still needs to be specified for a 48V input rail.

Can this model support a larger 48V load than the smaller MPM 48V supplies?

Within the MPM-90 series it is rated 90.2W and 1.88A at 48V, with a 99.2W peak allowed for up to 10 seconds. Lower-power MPM 48V models are not covered by this datasheet. For buyers comparing 48V options, this model is aimed at loads that need up to 90.2W.

Is the MPM-90-48ST suitable for outdoor or temperature-extreme operation?

The operating temperature range is specified as -30C to +80C (with derating per the derating curve), so the product data supports use across a wide temperature range. No IP rating is listed in the provided specs. Without an IP rating, the published data does not confirm outdoor or direct weather exposure suitability.

What is the difference between the MPM-90-48ST and the other 48V siblings in the series?

In the MPM-90 series the 48V models are the MPM-90-48 and the MPM-90-48ST, both rated 90.2W and 1.88A. The MPM-90-48 is the PCB mounting style at 87.0 x 52.0 x 29.5 mm and 0.197 kg, while the MPM-90-48ST is the screw terminal style at 109.0 x 52.0 x 33.5 mm and 0.219 kg.

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Model	Power	Voltage	Current	IP Rating	Price
Mean Well MPM-90-48 Power Supply 90W 48V 1.88A	90.2W	48V	1.88A	IP20	$31.45	View
Mean Well MPM-90-24ST Power Supply 90W 24V 3.75A	90W	24V	3.75A	IP20	$33.53	View
Mean Well MPM-90-24 Power Supply 90W 24V 3.75A	90W	24V	3.75A	IP20	$31.45	View
Mean Well MPM-90-15ST Power Supply 90W 15V 5.67A	85.05W	15V	5.67A	IP20	$33.71	View
Mean Well MPM-90-15 Power Supply 90W 15V 5.67A	85.05W	15V	5.67A	IP20	$31.45	View
Mean Well MPM-90-12ST Power Supply 90W 12V 6.7A	80.4W	12V	6.7A	IP20	$33.53	View
Mean Well MPM-90-12 Power Supply 90W 12V 6.7A	80.4W	12V	6.7A	IP20	$31.45	View

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