MEAN WELL MFM-20 Series 20W High Reliable Green Medical On Board Type Owner’s Manual

: June 1, 2024
: MEAN WELL

Table of Contents

MEAN WELL MFM-20 Series 20W High Reliable Green Medical On Board Type
Features
Applications
Description
SPECIFICATION
Block Diagram
Derating Curve
Output Derating VS Input Voltage
Mechanical Specification
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MEAN WELL MFM-20 Series 20W High Reliable Green Medical On Board Type

MEAN-WELL-MFM-20-Series-20W-High-Reliable-Green-Medical-On-Board-Type-
product

Features

1.93″x0.94″ 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
No load power consumption <0.1W
Extremely low leakage current
Wide operating temp. range -35 ~ +85°C
EMI Class B for class II configuration
Protections: Short circuit / Overload / Over voltage / Over temperature
No minimum load required
3 years warranty

Applications

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

GTIN CODE
MW Search: https://www.meanwell.com/serviceGTIN.aspx

Description

MFM-20 is a 20W high-density and small size (4923.823mm) AC/DC on-board type medical power supply series. It features the operation for 80~264 VAC, a low no-load power consumption of less than 0.1W, a high efficiency up to 87%, Class II (no FG) double insulation, outstanding dissipation, 5G anti- vibration, high EMC performance, 4KVAC isolation, etc. The design observes IEC/BS EN/EN60601-1 and ANS/AAMI ES60601-1 version three with 2XMOPP level and ultra-low leakage current(<80 u A). It is very suitable for BF (patient contact) type medical devices or relevant equipment.

Model Encoding

MEAN-WELL-MFM-20-Series-20W-High-Reliable-Green-Medical-On-Board-Type-
fig-1

SPECIFICATION

MODEL| MFM-20-3.3| MFM-20-5| MFM-20-12| MFM-20-15| MFM-20-24
---|---|---|---|---|---

OUTPUT

| DC VOLTAGE| 3.3V| 5V| 12V| 15V| 24V
RATED CURRENT| 4.5A| 4A| 1.8A| 1.4A| 0.9A
CURRENT RANGE Note.2| 0 ~ 4.5A| 0 ~ 4A| 0 ~ 1.8A| 0 ~ 1.4A| 0 ~ 0.9A
PEAK CURRENT| 4.95A| 4.4A| 1.98A| 1.54A| 0.99A
RATED POWER| 14.9W| 20W| 21.6W| 21W| 21.6W
PEAK LOAD(10sec.) Note.3| 16.3W| 22W| 23.8W| 23.1W| 23.8W
RIPPLE & NOISE (max.) **Note.4| 150mVp-p| 150mVp-p| 150mVp-p| 180mVp-p| 180mVp-p
VOLTAGE TOLERANCE Note.5| ±2.0%| ±2.0%| ±2.0%| ±2.0%| ±2.0%
LINE REGULATION| ±0.5%| ±0.5%| ±0.3%| ±0.3%| ±0.3%
LOAD REGULATION| ±0.5%| ±0.5%| ±0.5%| ±0.5%| ±0.5%
SETUP, RISE TIME| 1500ms, 30ms/230VAC 1500ms, 30ms/115VAC at full load
HOLD UP TIME (Typ.)**| 40ms/230VAC 10ms/115VAC at full load

INPUT

PROTECTION

| ****

OVERLOAD

| 110% ~ 150% rated output power
Protection type : Hiccup mode, recovers automatically after fault condition is removed

OVER VOLTAGE

| 3.8 ~ 5V| 5.8 ~ 6.8V| 13.8 ~ 16.2V| 17.3 ~ 20.3V| 27.6 ~ 32.4V
Protection type : Shut off o/p voltage, clamping by zener diode
OVER TEMPERATURE| Protection type : Shut down o/p voltage, recovers automatically after temperature goes down

ENVIRONMENT

| WORKING TEMP.| -35 ~ +85℃ (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℃)
SOLDERING TEMPERATURE| Wave soldering: 265℃,5s (max.); Manual soldering: 390℃,3s (max.)
VIBRATION| 10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes
OPERATING ALTITUDE Note.8| 5000 meters

SAFETY & EMC

(Note.9)

| SAFETY STANDARDS| IEC60601-1, TUV BS EN/EN60601-1, IEC60335-1, Dekra BS EN/EN60335-1, EAC TP TC 004,UL ANSI/AAMI ES60601-1

(3.1 version), CAN/CSA-C22 3rd Edition approved

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

EMC IMMUNITY

RF field susceptibility

| ****

BS EN/EN61000-4-3

BS EN/EN61000-4-11

| 100% dip 1 periods, 30% dip 25 periods,

100% interruptions 250 periods

OTHERS

| MTBF| 7319.8K hrs min. Telcordia SR-332 (Bellcore) ; 1210.1K hrs min. MIL-HDBK-217F (25℃)
DIMENSION| 4923.823mm (LWH) or 1.93 ″0.94″0.91″ inch
PACKING| 0.028Kg; 200pcs/6.6Kg/0.94CUFT

NOTE

| 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load, and 25℃ of ambient temperature.
2. No minimum load required.
3. 33% Duty cycle maximum within every 30 seconds. The average output power should not exceed the rated power.
4. Ripple & noise are measured at 20MHz of bandwidth by using a 12″ twisted pair-wire terminated with a 0.1μF & 47μF parallel capacitor.
5. Tolerance: includes set up tolerance, line regulation, and load regulation.
6. Derating may be needed under low input voltages. Please check the derating curve for more details.
7. Touch current was measured from primary input to DC output.
8. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitudes higher than 2000m(6500ft).
9. The power supply is considered a component that will be installed into the 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 )

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