Over 15 years experience of providing support of MEAN WELL Power Supplies
Mean Well MPM-45-48 Power Supply 45W 48V 940mA
Notify me when it's back in stock
Your order will be processed within 24 hours
Overview
MPM-45-48 is the 48V output model of this series: typical efficiency 92%.
MPM-45 is a 45W high density and small size (87x52x29.5mm) AC/DC PCB-mount 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 92.5%, 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)
- 50W peak(10 sec.)
- 3 years warranty
Specifications
OUTPUT
- DC VOLTAGE
- 48V
- CURRENT Peak(10 sec.)
- 1.05A
- CURRENT Convection
- 0.94A
- RATED POWER Peak(10 sec.)Note.2
- 50.4W
- RATED POWER Convection
- 45.1W
- RIPPLE & NOISE (max.)Note.3
- 240mVp-p
- VOLTAGE TOLERANCENote.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.)
- 50ms/230VAC 12ms/115VAC at full load
INPUT
- VOLTAGE RANGENote.5
- 80 ~ 264VAC 113 ~ 370VDC
- FREQUENCY RANGE
- 47 ~ 63Hz
- EFFICIENCY (Typ.)
- 92%
- AC CURRENT (Typ.)
- 1.2A/115VAC 0.6A/230VAC
- INRUSH CURRENT (Typ.)
- COLD START 30A/115VAC 60A/230VAC
- LEAKAGE CURRENT (max.)Note.6
- Touch current <100μA/264VAC
PROTECTION
- OVERLOAD
- 115% ~ 135% 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 ~ 60℃)
- 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 ALTITUDENote.7
- 4000 meters / OVCⅡ
SAFETY & EMC (Note 8)
- 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
OTHERS
- MTBF
- 4590.4K hrs min. Telcordia SR-332 (Bellcore) ; 563.4K 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 : 0.185Kg;60pcs/12.1Kg/0.94CUFT Screw terminal style :0.206Kg;50pcs/11.3Kg/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
Typical applications
- Portable medical device
- Mobile clinical workstation
- Medical computer monitor
- Medical examination instrument
Downloads
Certificates6
Test reports1
Catalogues1
FAQ
Can I use the MPM-45-48 for 48V telecom or network equipment?
It can be used for equipment that requires a constant 48V DC source and draws no more than 0.94A or 45.1W. That output profile fits many 48V IT, telecom, and communications power sections when the load stays within the rated current.
Is the MPM-45-48 a good fit for 48V industrial control or monitoring devices?
Yes, if the device expects 48V constant voltage input and its demand remains within 45.1W and 0.94A. The wide 80-264VAC input also supports use across a broad AC input range.
Can this model power 48V embedded systems or interface modules?
It is suitable for embedded or interface hardware that needs a regulated 48V output and does not exceed 0.94A. The compact 87.0 x 52.0 x 29.5 mm size can also help where internal space is limited.
Can the MPM-45-48 be used outdoors or in exposed environments?
The operating temperature range is -30°C to +80°C, so the temperature specification is broad. But the provided specs do not list an IP rating, so they do not claim weather, dust, or water ingress protection for exposed outdoor use.
What are the main differences between the MPM-45-48 and other MPM 45-series versions?
The 45-series outputs include 12V at 45W and 3.75A, 15V at 45W and 3A, 24V at 45.1W and 1.88A, 48V at 45.1W and 0.94A, and 5V at 40W and 8A. This non-ST 48V version measures 87.0 x 52.0 x 29.5 mm, while the ST 48V sibling keeps the same 45.1W, 48V, and 0.94A ratings in a 109.0 x 52.0 x 33.5 mm package.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Other MPM-45 Models
9 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well MPM-45-5ST Power Supply 45W 5V 8A | 40W | 5V | 8A | IP20 | $27.07 | View |
| Mean Well MPM-45-5 Power Supply 45W 5V 8A | 40W | 5V | 8A | IP20 | $24.96 | View |
| Mean Well MPM-45-48ST Power Supply 45W 48V 940mA | 45.1W | 48V | 0.94A | IP20 | $27.07 | View |
| Mean Well MPM-45-24ST Power Supply 45W 24V 1.88A | 45.1W | 24V | 1.88A | IP20 | $27.07 | View |
| Mean Well MPM-45-24 Power Supply 45W 24V 1.88A | 45.1W | 24V | 1.88A | IP20 | $24.96 | View |
| Mean Well MPM-45-15ST Power Supply 45W 15V 3A | 45W | 15V | 3A | IP20 | $27.07 | View |
| Mean Well MPM-45-15 Power Supply 45W 15V 3A | 45W | 15V | 3A | IP20 | $24.96 | View |
| Mean Well MPM-45-12ST Power Supply 45W 12V 3.75A | 45W | 12V | 3.75A | IP20 | $27.07 | View |
| Mean Well MPM-45-12 Power Supply 45W 12V 3.75A | 45W | 12V | 3.75A | IP20 | $24.96 | View |
Please log in to write a review.
Write a review
Reviews are checked before publishing. By submitting you confirm this is your genuine experience with this product.
Submitting your review…
It's published and now helps other buyers.
We're checking it and it'll appear shortly.
Please try again.


