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MFM-20-3.3
AC/DC Open Frame Power Supply (PSU), Household & Medical, 1 Output, 14.9 W, 80V AC to 264V AC
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: MEAN WELL
- Product type: AC / DC Open Frame Power Supplies
- No. of Outputs:1 Output; Power Rating (Covection Cooling):14.9W; Power Rating (Forced Cooling):-; Input Voltage VAC:80V AC to 264V AC; Power Supply Output Type:Fixed; Output Voltage - Out
- SVHC: No SVHC (25-Jun-2025)
- Product Range: MFM-20 Series
- No. of Outputs: 1 Output
- Input Voltage VAC: 80V AC to 264V AC
- Power Supply Output Type: Fixed
- Output Current - Output 1: 4.5A
- Output Current - Output 2: -
- Output Current - Output 3: -
- Output Current - Output 4: -
- Output Voltage - Output 1: 3.3VDC
- Output Voltage - Output 2: -
- Output Voltage - Output 3: -
- Output Voltage - Output 4: -
- Power Supply Applications: Household & Medical
- Power Rating (Forced Cooling): -
- Power Rating (Convection Cooling): 14.9W
| Delivery and price | |
|---|---|
| Units per pack | 10 |
| Price | 15.11 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**- MFM 20 series** 20W High Reliable Green Medical On Board Type **==> picture [42 x 6] intentionally omitted <==** **----- Start of picture text -----**<br> User’s Manual<br>**----- End of picture text -----**<br> ## + + PDEKRA] a \N US oF ~~s~~ x~=-—| CB FAL C€ caBS 2 bed ~~=~~ be BS EN/EN60335-1 ANSI/AAMI ES60601-1 BS EN/EN60601-1 IEC60601-1 TPTC004 ■ Features ■ Applications No load power consumption<0.1W Wide operating temp. range -35 ~ +85 ℃ EMI class B for class Ⅱ configuration ■ GTIN CODE Protections: MW Search: https://www.meanwell.com/serviceGTIN.aspx ## ■ Ⅱ (no FG) double insulation, outstanding dissipation, isolation, etc. The design observes IEC/BS 2xMOPP level and ultra-low leakage current(<80 μ **==> picture [13 x 11] intentionally omitted <==** **----- Start of picture text -----**<br> ■<br>**----- End of picture text -----**<br> _File Name:MFM-20-SPEC 2022-12-19_ **- MFM 20 series** 20W High Reliable Green Medical On Board Type ## **SPECIFICATION** |**OPERATING ALTITUDE Note.8** 5000 meters<br>**MODEL**<br>**DC VOLTAGE**<br>**RATED CURRENT**<br>**CURRENT RANGE**<br>**Note.2**<br>**RATED POWER**<br>**OUTPUT**<br>**LINE REGULATION**<br>**LOAD REGULATION**<br>**SETUP, RISE TIME**<br>**HOLD UP TIME (Typ.)**<br>**VOLTAGE RANGE**<br>**Note.6**<br>**FREQUENCY RANGE**<br>**EFFICIENCY (Typ.)**<br>**INPUT**<br>**INRUSH CURRENT (Typ.)**<br>**WITHSTAND VOLTAGE**<br>**ISOLATION RESISTANCE**<br>**WORKING HUMIDITY**<br>**WORKING TEMP.**<br>**OVER TEMPERATURE**<br>**STORAGE TEMP., HUMIDITY**<br>**TEMP. COEFFICIENT**<br>**VIBRATION**<br>**MTBF**<br>**DIMENSION**<br>**OTHERS**<br>**NOTE**<br>**PACKING**<br>**OVERLOAD**<br>**OVER VOLTAGE**<br>**AC CURRENT (Typ.)**<br>20 ~ 90% RH non-condensing<br>-35 ~ +85<br>(Refer to "Derating Curve")<br>℃<br>-40 ~ +85<br>, 10 ~ 95% RH non-condensing<br>℃<br>±<br>℃<br>℃<br>0.03%/<br>(0 ~ 50<br>)<br>10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes<br>**SAFETY STANDARDS**<br>**RIPPLE & NOISE (max.) Note.4**<br>**VOLTAGE TOLERANCE Note.5**<br>**ENVIRONMENT**<br>**SAFETY &**<br>**EMC**<br>**(Note.9)**<br>**PROTECTION**<br>Protection type : Shut off o/p voltage, clamping by zener diode<br>Protection type : Shut down o/p voltage, recovers automatically after temperature goes down<br>I/P-O/P:4KVAC<br>I/P-O/P:100M Ohms / 500VDC / 25<br>/ 70% RH<br>℃<br>**LEAKAGE CURRENT (max.) Note.7**<br>**ISOLATION LEVEL**<br>Primary-Secondary: 2xMOPP<br>**EMC IMMUNITY**<br>**EMC EMISSION**<br>**SOLDERING TEMPERATURE**<br>**PEAK CURRENT**<br>1500ms, 30ms/230VAC 1500ms, 30ms/115VAC at full load<br>40ms/230VAC 10ms/115VAC at full load<br>80 ~ 264VAC<br>47 ~ 440Hz<br>0.75A/115VAC 0.5A/230VAC<br>110% ~ 150% rated output power<br>Protection type : Hiccup mode, recovers automatically after fault condition is removed<br>**MFM-20-3.3**<br>Touch current <80 A/264VAC<br>μ<br>±0.5%<br>±0.5%<br>±2.0%<br>3.3V<br>4.5A<br>0 ~ 4.5A<br>14.9W<br>±0.5%<br>±0.3%<br>±0.5%<br>±0.3%<br>±0.5%<br>±0.3%<br>±0.5%<br>±0.5%<br>±2.0%<br>±2.0%<br>±2.0%<br>±2.0%<br>12V<br>15V<br>24V<br>4A<br>1.8A<br>1.4A<br>0.9A<br>0 ~ 4A<br>0 ~ 1.8A<br>0 ~ 1.4A<br>0 ~ 0.9A<br>20W<br>21.6W<br>21W<br>21.6W<br>5V<br>13.8 ~ 16.2V<br>17.3 ~ 20.3V<br>27.6 ~ 32.4V<br>5.8 ~ 6.8V<br>3.8 ~ 5V<br>**MFM-20-5**<br>**MFM-20-12**<br>**MFM-20-15**<br>**MFM-20-24**<br>4.95A<br>4.4A<br>1.98A<br>1.54A<br>0.99A<br>0.028Kg; 200pcs/6.6Kg/0.94CUFT<br>**PEAK LOAD(10sec.)**<br>**Note.3** 16 3W<br>.<br>22W<br>23.8W<br>23.1W<br>23.8W<br>℃<br>μ<br>μ<br>℃<br>℃<br>(as available on http://www.meanwell.com)<br>※<br>：<br>https://www.meanwell.com/serviceDisclaimer.aspx<br>49*23.8*23mm (L*W*H) or 1.93 *0.94 *0 91 inch<br>″<br>″<br>.<br>″<br>IEC60601-1, TUV BS EN/EN60601-1, IEC60335-1, Dekra BS EN/EN60335-1<br>,UL ANSI/AAMI ES60601-1<br>, EAC TP TC 004<br>(3.1 version), CAN/CSA-C22 3 Edition approved<br>rd<br>COLD START<br>A/115VAC<br>A/230VAC<br>20<br>45<br>**Parameter**<br>**Parameter**<br>ESD<br>**Standard**<br>**Standard**<br>BS EN/EN55011 (CISPR11)<br>BS EN/EN55011 (CISPR11)<br>BS EN/EN61000-3-2<br>BS EN/EN61000-3-3<br>BS EN/EN61000-4-2<br>BS EN/EN61000-4-3<br>BS EN/EN61000-4-4<br>BS EN/EN61000-4-5<br>BS EN/EN61000-4-6<br>BS EN/EN61000-4-8<br>BS EN/EN61000-4-11<br>**Test Level / Note**<br>**Test Level / Note**<br>Class B<br>Class B<br>Class A<br>-----<br>100% dip 1 periods, 30% dip 25 periods,<br>100% interruptions 250 periods<br>Level 4, 15KV air ; Level 4, 8KV contact<br>Level 3, 1KV/Line-Line<br>BS EN/<br>BS EN/EN60601-1-2<br>EN55035,<br>RF field susceptibility<br>EFT bursts<br>Surge susceptibility<br>Conducted susceptibility<br>Magnetic field immunity<br>Conducted emission<br>Radiated emission<br>Harmonic current<br>Voltage flicker<br>Level 4, 30A/m<br>Level 3, 10V<br>Level 3, 2KV<br>Voltage dip, interruption<br>150mVp-p<br>150mVp-p<br>150mVp-p<br>180mVp-p<br>180mVp-p<br>85%<br>81%<br>85.5%<br>87%<br>87%<br>Level 3, 10V/m( 80MHz~2.7GHz )<br>Table 9, 9~28V/m( 385MHz~5.78GHz )<br>7319.8K hrs min.<br>Telcordia SR-332 (Bellcore) ; 1210.1K hrs min. MIL-HDBK-217F (25<br>)<br>℃<br>Wave soldering: 265<br>,5s (max.); Manual soldering: 390<br>,3s (max.)<br>℃<br>℃<br>~~GG~~<br>~~GG~~<br>IRe<br>IeeeG<br>GO<br>a ~~GG~~<br>~~RO~~<br>Re~~GO~~<br>~~GG~~<br>a<br>a<br>a~~ee~~<br>~~G~~<br>~~a~~<br>a<br>~~eeRC~~<br>~~|~~<br>~~a~~<br>~~a~~<br>~~|~~<br>a<br>a<br>ee<br>a<br>a<br>a<br>a<br>a<br>a<br>a<br>a ~~OG~~<br>~~GO~~<br>~~GO~~<br>~~GC~~<br>~~Ce~~<br>Ce~~GO~~<br>~~GG~~<br>BR~~GO~~<br>~~GO~~<br>~~GC~~<br>~~Re~~<br>Re<br>a<br>1. All parameters NOT specially mentioned are measured at230VAC input, rated load and 25<br>of ambient temperature.<br>2. No minimum load required.<br>3. 33% Duty cycle maximum within every 30 seconds. Average output power should not exceed the rated power.<br>4. Ripple & noise are measured at20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1.<br>f & 47<br>f parallel capacitor.<br>5. Tolerance: includes set up tolerance, line regulation and load regulation.<br>6. Derating may be needed under low input voltages. Please check the derating curve for more details.<br>7. Touch currentwas measured from primary input to DC output.<br>8. The ambient temperature derating of 3.5<br>/1000m with fanless models and of<br>5<br>/1000m with fan models for operating altitude higher than 2000m(6500ft)<br>9. 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<br>meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.”<br>Product Liability Disclaimer<br>For detailed information, please refer to|**OPERATING ALTITUDE Note.8** 5000 meters<br>**MODEL**<br>**DC VOLTAGE**<br>**RATED CURRENT**<br>**CURRENT RANGE**<br>**Note.2**<br>**RATED POWER**<br>**OUTPUT**<br>**LINE REGULATION**<br>**LOAD REGULATION**<br>**SETUP, RISE TIME**<br>**HOLD UP TIME (Typ.)**<br>**VOLTAGE RANGE**<br>**Note.6**<br>**FREQUENCY RANGE**<br>**EFFICIENCY (Typ.)**<br>**INPUT**<br>**INRUSH CURRENT (Typ.)**<br>**WITHSTAND VOLTAGE**<br>**ISOLATION RESISTANCE**<br>**WORKING HUMIDITY**<br>**WORKING TEMP.**<br>**OVER TEMPERATURE**<br>**STORAGE TEMP., HUMIDITY**<br>**TEMP. COEFFICIENT**<br>**VIBRATION**<br>**MTBF**<br>**DIMENSION**<br>**OTHERS**<br>**NOTE**<br>**PACKING**<br>**OVERLOAD**<br>**OVER VOLTAGE**<br>**AC CURRENT (Typ.)**<br>20 ~ 90% RH non-condensing<br>-35 ~ +85<br>(Refer to "Derating Curve")<br>℃<br>-40 ~ +85<br>, 10 ~ 95% RH non-condensing<br>℃<br>±<br>℃<br>℃<br>0.03%/<br>(0 ~ 50<br>)<br>10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes<br>**SAFETY STANDARDS**<br>**RIPPLE & NOISE (max.) Note.4**<br>**VOLTAGE TOLERANCE Note.5**<br>**ENVIRONMENT**<br>**SAFETY &**<br>**EMC**<br>**(Note.9)**<br>**PROTECTION**<br>Protection type : Shut off o/p voltage, clamping by zener diode<br>Protection type : Shut down o/p voltage, recovers automatically after temperature goes down<br>I/P-O/P:4KVAC<br>I/P-O/P:100M Ohms / 500VDC / 25<br>/ 70% RH<br>℃<br>**LEAKAGE CURRENT (max.) Note.7**<br>**ISOLATION LEVEL**<br>Primary-Secondary: 2xMOPP<br>**EMC IMMUNITY**<br>**EMC EMISSION**<br>**SOLDERING TEMPERATURE**<br>**PEAK CURRENT**<br>1500ms, 30ms/230VAC 1500ms, 30ms/115VAC at full load<br>40ms/230VAC 10ms/115VAC at full load<br>80 ~ 264VAC<br>47 ~ 440Hz<br>0.75A/115VAC 0.5A/230VAC<br>110% ~ 150% rated output power<br>Protection type : Hiccup mode, recovers automatically after fault condition is removed<br>**MFM-20-3.3**<br>Touch current <80 A/264VAC<br>μ<br>±0.5%<br>±0.5%<br>±2.0%<br>3.3V<br>4.5A<br>0 ~ 4.5A<br>14.9W<br>±0.5%<br>±0.3%<br>±0.5%<br>±0.3%<br>±0.5%<br>±0.3%<br>±0.5%<br>±0.5%<br>±2.0%<br>±2.0%<br>±2.0%<br>±2.0%<br>12V<br>15V<br>24V<br>4A<br>1.8A<br>1.4A<br>0.9A<br>0 ~ 4A<br>0 ~ 1.8A<br>0 ~ 1.4A<br>0 ~ 0.9A<br>20W<br>21.6W<br>21W<br>21.6W<br>5V<br>13.8 ~ 16.2V<br>17.3 ~ 20.3V<br>27.6 ~ 32.4V<br>5.8 ~ 6.8V<br>3.8 ~ 5V<br>**MFM-20-5**<br>**MFM-20-12**<br>**MFM-20-15**<br>**MFM-20-24**<br>4.95A<br>4.4A<br>1.98A<br>1.54A<br>0.99A<br>0.028Kg; 200pcs/6.6Kg/0.94CUFT<br>**PEAK LOAD(10sec.)**<br>**Note.3** 16 3W<br>.<br>22W<br>23.8W<br>23.1W<br>23.8W<br>℃<br>μ<br>μ<br>℃<br>℃<br>(as available on http://www.meanwell.com)<br>※<br>：<br>https://www.meanwell.com/serviceDisclaimer.aspx<br>49*23.8*23mm (L*W*H) or 1.93 *0.94 *0 91 inch<br>″<br>″<br>.<br>″<br>IEC60601-1, TUV BS EN/EN60601-1, IEC60335-1, Dekra BS EN/EN60335-1<br>,UL ANSI/AAMI ES60601-1<br>, EAC TP TC 004<br>(3.1 version), CAN/CSA-C22 3 Edition approved<br>rd<br>COLD START<br>A/115VAC<br>A/230VAC<br>20<br>45<br>**Parameter**<br>**Parameter**<br>ESD<br>**Standard**<br>**Standard**<br>BS EN/EN55011 (CISPR11)<br>BS EN/EN55011 (CISPR11)<br>BS EN/EN61000-3-2<br>BS EN/EN61000-3-3<br>BS EN/EN61000-4-2<br>BS EN/EN61000-4-3<br>BS EN/EN61000-4-4<br>BS EN/EN61000-4-5<br>BS EN/EN61000-4-6<br>BS EN/EN61000-4-8<br>BS EN/EN61000-4-11<br>**Test Level / Note**<br>**Test Level / Note**<br>Class B<br>Class B<br>Class A<br>-----<br>100% dip 1 periods, 30% dip 25 periods,<br>100% interruptions 250 periods<br>Level 4, 15KV air ; Level 4, 8KV contact<br>Level 3, 1KV/Line-Line<br>BS EN/<br>BS EN/EN60601-1-2<br>EN55035,<br>RF field susceptibility<br>EFT bursts<br>Surge susceptibility<br>Conducted susceptibility<br>Magnetic field immunity<br>Conducted emission<br>Radiated emission<br>Harmonic current<br>Voltage flicker<br>Level 4, 30A/m<br>Level 3, 10V<br>Level 3, 2KV<br>Voltage dip, interruption<br>150mVp-p<br>150mVp-p<br>150mVp-p<br>180mVp-p<br>180mVp-p<br>85%<br>81%<br>85.5%<br>87%<br>87%<br>Level 3, 10V/m( 80MHz~2.7GHz )<br>Table 9, 9~28V/m( 385MHz~5.78GHz )<br>7319.8K hrs min.<br>Telcordia SR-332 (Bellcore) ; 1210.1K hrs min. MIL-HDBK-217F (25<br>)<br>℃<br>Wave soldering: 265<br>,5s (max.); Manual soldering: 390<br>,3s (max.)<br>℃<br>℃<br>~~GG~~<br>~~GG~~<br>IRe<br>IeeeG<br>GO<br>a ~~GG~~<br>~~RO~~<br>Re~~GO~~<br>~~GG~~<br>a<br>a<br>a~~ee~~<br>~~G~~<br>~~a~~<br>a<br>~~eeRC~~<br>~~|~~<br>~~a~~<br>~~a~~<br>~~|~~<br>a<br>a<br>ee<br>a<br>a<br>a<br>a<br>a<br>a<br>a<br>a ~~OG~~<br>~~GO~~<br>~~GO~~<br>~~GC~~<br>~~Ce~~<br>Ce~~GO~~<br>~~GG~~<br>BR~~GO~~<br>~~GO~~<br>~~GC~~<br>~~Re~~<br>Re<br>a<br>1. All parameters NOT specially mentioned are measured at230VAC input, rated load and 25<br>of ambient temperature.<br>2. No minimum load required.<br>3. 33% Duty cycle maximum within every 30 seconds. Average output power should not exceed the rated power.<br>4. Ripple & noise are measured at20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1.<br>f & 47<br>f parallel capacitor.<br>5. Tolerance: includes set up tolerance, line regulation and load regulation.<br>6. Derating may be needed under low input voltages. Please check the derating curve for more details.<br>7. Touch currentwas measured from primary input to DC output.<br>8. The ambient temperature derating of 3.5<br>/1000m with fanless models and of<br>5<br>/1000m with fan models for operating altitude higher than 2000m(6500ft)<br>9. 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<br>meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.”<br>Product Liability Disclaimer<br>For detailed information, please refer to|**MFM-20-3.3**|**MFM-20-5**|**MFM-20-5**|**MFM-20-12**|**MFM-20-15**|**MFM-20-15**|**MFM-20-24**| |---|---|---|---|---|---|---|---|---| ||**DC VOLTAGE**<br>~~GG~~|3.3V<br>~~GG~~|5V<br>~~GG~~||12V<br>~~GG~~|15V<br>~~GG~~||24V<br>~~GG~~| ||**RATED CURRENT**<br>~~GG~~<br>~~GG~~<br>I|4.5A<br>~~GG~~<br>~~GG~~|4A<br>~~GG~~<br>~~GG~~||1.8A<br>~~GG~~<br>~~GG~~|1.4A<br>~~GG~~<br>~~GG~~||0.9A<br>~~GG~~<br>~~GG~~| ||**CURRENT RANGE**<br>**Note.2**<br>~~GG~~<br>IRe|0 ~ 4.5A<br>~~GG~~|0 ~ 4A<br>~~GG~~||0 ~ 1.8A<br>~~GG~~|0 ~ 1.4A<br>~~GG~~||0 ~ 0.9A<br>~~GG~~| ||**PEAK CURRENT**<br>IRe<br>I|4.95A<br>|4.4A<br>||1.98A|1.54A||0.99A| ||**RATED POWER**<br>Re<br>Iee|14.9W<br>eG|20W<br>eG||21.6W<br>GO|21W<br>GO||21.6W| ||**RIPPLE & NOISE (max.) Note.4**<br>**PEAK LOAD(10sec.)**<br>**Note.3** <br>Iee<br>a|16 3W<br>.<br>150mVp-p<br>eG<br>~~GG~~|22W<br>150mVp-p<br>eG<br>~~GG~~||23.8W<br>150mVp-p<br>GO<br>~~GG~~|23.1W<br>180mVp-p<br>GO<br>~~GG~~||23.8W<br>180mVp-p<br>~~GG~~| ||**VOLTAGE TOLERANCE Note.5**<br>a <br>~~RO~~<br>Re|±2.0%<br> ~~GG~~<br>~~RO~~<br>~~GO~~|±2.0%<br>~~GG~~<br>~~RO~~<br>~~GO~~||±2.0%<br>~~GG~~<br>~~RO~~<br>~~GO~~|±2.0%<br>~~GG~~<br>~~RO~~<br>~~GO~~||±2.0%<br>~~GG~~<br>~~RO~~<br>~~GO~~| ||**LINE REGULATION**<br>~~RO~~<br>Re|±0.5%<br>~~RO~~<br>~~GO~~|±0.5%<br>~~RO~~<br>~~GO~~||±0.3%<br>~~RO~~<br>~~GO~~|±0.3%<br>~~RO~~<br>~~GO~~||±0.3%<br>~~RO~~<br>~~GO~~| ||**LOAD REGULATION**<br>Re<br>~~GG~~|±0.5%<br>~~GO~~<br>~~GG~~|±0.5%<br>~~GO~~<br>~~GG~~||±0.5%<br>~~GO~~<br>~~GG~~|±0.5%<br>~~GO~~<br>~~GG~~||±0.5%<br>~~GO~~<br>~~GG~~| ||**SETUP, RISE TIME**<br>a|1500ms, 30ms/230VAC 1500ms, 30ms/115VAC at full load||||||| ||**HOLD UP TIME (Typ.)**<br>a|40ms/230VAC 10ms/115VAC at full load||||||| ||**VOLTAGE RANGE**<br>**Note.6**<br>a<br>a<br>a|80 ~ 264VAC<br>||||||| ||**FREQUENCY RANGE**<br>a|47 ~ 440Hz<br>||||||| ||**EFFICIENCY (Typ.)**<br>a~~ee~~<br>~~a~~|81%<br>~~ee~~|85%<br>~~ee~~||85.5%<br>~~ee~~|87%<br>~~ee~~<br>~~G~~||87%<br>~~ee~~<br>~~G~~| ||**AC CURRENT (Typ.)**<br>~~a~~|0.75A/115VAC 0.5A/230VAC<br>~~G~~||||||| ||**INRUSH CURRENT (Typ.)**<br>~~a~~<br>a<br>~~ee~~|COLD START<br>A/115VAC<br>A/230VAC<br>20<br>45<br>~~G~~<br>~~RC~~||||||| ||**LEAKAGE CURRENT (max.) Note.7**<br>~~ee~~|Touch current <80 A/264VAC<br>μ<br>~~RC~~||||||| ||**OVERLOAD**<br>~~ee~~|110% ~ 150% rated output power<br>Protection type : Hiccup mode, recovers automatically after fault condition is removed<br>~~RC~~<br>~~|~~||||||| ||**OVER VOLTAGE**<br>a|Protection type : Shut off o/p voltage, clamping by zener diode<br>13.8 ~ 16.2V<br>17.3 ~ 20.3V<br>27.6 ~ 32.4V<br>5.8 ~ 6.8V<br>3.8 ~ 5V<br>~~a~~<br>~~a~~<br>~~|~~||||||| ||**OVER TEMPERATURE**<br>a<br>a|Protection type : Shut down o/p voltage, recovers automatically after temperature goes down||||||| ||**WORKING TEMP.**<br>a<br>a<br>ee|-35 ~ +85<br>(Refer to "Derating Curve")<br>℃||||||| ||**WORKING HUMIDITY**<br>ee|20 ~ 90% RH non-condensing||||||| ||**STORAGE TEMP., HUMIDITY**<br>ee<br>a|-40 ~ +85<br>, 10 ~ 95% RH non-condensing<br>℃||||||| ||**TEMP. COEFFICIENT**<br>a<br>a<br>a|±<br>℃<br>℃<br>0.03%/<br>(0 ~ 50<br>)||||||| ||**SOLDERING TEMPERATURE**<br>a<br>a|Wave soldering: 265<br>,5s (max.); Manual soldering: 390<br>,3s (max.)<br>℃<br>℃||||||| ||**VIBRATION**<br>a<br>a|10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes||||||| ||**OPERATING ALTITUDE Note.8** <br>a<br>a|5000 meters||||||| ||**SAFETY STANDARDS**<br>a|IEC60601-1, TUV BS EN/EN60601-1, IEC60335-1, Dekra BS EN/EN60335-1<br>,UL ANSI/AAMI ES60601-1<br>, EAC TP TC 004<br>(3.1 version), CAN/CSA-C22 3 Edition approved<br>rd||||||| ||**ISOLATION LEVEL**<br>a<br>a|Primary-Secondary: 2xMOPP||||||| ||**WITHSTAND VOLTAGE**<br>**ISOLATION RESISTANCE**<br>**MTBF**<br>**EMC IMMUNITY**<br>**EMC EMISSION**<br>a<br>a <br>Ce<br>BR<br>~~Re~~<br>Re|I/P-O/P:4KVAC<br>~~OG~~||||||| |||I/P-O/P:100M Ohms / 500VDC / 25<br>/ 70% RH<br>℃<br>~~OG~~||||||| |||**Parameter**<br> ~~OG~~||**Standard**<br>~~OG~~|||**Test Level / Note**<br>~~OG~~|| |||Conducted emission<br>~~GO~~||BS EN/EN55011 (CISPR11)<br>~~GO~~|||Class B<br>~~GO~~|| |||Radiated emission<br>~~GO~~<br>~~GC~~||BS EN/EN55011 (CISPR11)<br>~~GO~~<br>~~GC~~|||Class B<br>~~GO~~<br>~~GC~~|| |||Harmonic current<br>~~GC~~<br>~~Ce~~||BS EN/EN61000-3-2<br>~~GC~~<br>~~Ce~~|||Class A<br>~~GC~~<br>~~Ce~~|| |||Voltage flicker<br>~~Ce~~<br>Ce||BS EN/EN61000-3-3<br>~~Ce~~<br>|||-----<br>~~Ce~~<br>|| |||BS EN/<br>BS EN/EN60601-1-2<br>EN55035,<br>Ce~~GO~~||||||| |||**Parameter**<br>Ce~~GO~~||**Standard**<br>~~GO~~|||**Test Level / Note**<br>~~GO~~|| |||ESD<br>~~GG~~||BS EN/EN61000-4-2<br>~~GG~~|||Level 4, 15KV air ; Level 4, 8KV contact<br>~~GG~~|| |||RF field susceptibility<br>~~GG~~<br>BR||BS EN/EN61000-4-3<br>~~GG~~<br>|||Level 3, 10V/m( 80MHz~2.7GHz )<br>Table 9, 9~28V/m( 385MHz~5.78GHz )<br>~~GG~~<br>|| |||EFT bursts<br>BR~~GO~~||BS EN/EN61000-4-4<br>~~GO~~|||Level 3, 2KV<br>~~GO~~|| |||Surge susceptibility<br>BR~~GO~~<br>~~GO~~||BS EN/EN61000-4-5<br>~~GO~~<br>~~GO~~|||Level 3, 1KV/Line-Line<br>~~GO~~<br>~~GO~~|| |||Conducted susceptibility<br>~~GO~~<br>~~GC~~||BS EN/EN61000-4-6<br>~~GO~~<br>~~GC~~|||Level 3, 10V<br>~~GO~~<br>~~GC~~|| |||Magnetic field immunity<br>~~GC~~||BS EN/EN61000-4-8<br>~~GC~~|||Level 4, 30A/m<br>~~GC~~|| |||Voltage dip, interruption||BS EN/EN61000-4-11|||100% dip 1 periods, 30% dip 25 periods,<br>100% interruptions 250 periods|| |||7319.8K hrs min.<br>Telcordia SR-332 (Bellcore) ; 1210.1K hrs min. MIL-HDBK-217F (25<br>)<br>℃<br>~~Re~~||||||| ||**DIMENSION**<br>Re|49*23.8*23mm (L*W*H) or 1.93 *0.94 *0 91 inch<br>″<br>″<br>.<br>″||||||| ||**PACKING**<br>0.028Kg; 200pcs/6.6Kg/0.94CUFT<br>℃<br>μ<br>μ<br>℃<br>℃<br>(as available on http://www.meanwell.com)<br>※<br>：<br>https://www.meanwell.com/serviceDisclaimer.aspx<br>Re<br>a<br>1. All parameters NOT specially mentioned are measured at230VAC input, rated load and 25<br>of ambient temperature.<br>2. No minimum load required.<br>3. 33% Duty cycle maximum within every 30 seconds. Average output power should not exceed the rated power.<br>4. Ripple & noise are measured at20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1.<br>f & 47<br>f parallel capacitor.<br>5. Tolerance: includes set up tolerance, line regulation and load regulation.<br>6. Derating may be needed under low input voltages. Please check the derating curve for more details.<br>7. Touch currentwas measured from primary input to DC output.<br>8. The ambient temperature derating of 3.5<br>/1000m with fanless models and of<br>5<br>/1000m with fan models for operating altitude higher than 2000m(6500ft)<br>9. 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<br>meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.”<br>Product Liability Disclaimer<br>For detailed information, please refer to|||||||| (as available on http://www.meanwell.com) ※ Product Liability Disclaimer ： For detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx _File Name:MFM-20-SPEC 2022-12-19_ **- MFM 20 series** 20W High Reliable Green Medical On Board Type **==> picture [486 x 632] intentionally omitted <==** **----- Start of picture text -----**<br> Block Diagram<br>fosc : 100KHz<br>RECTIFIERS RECTIFIERS<br>EMI POWER +V<br>I/P & &<br>FILTER SWITCHING -V<br>FILTER FILTER<br>PWM DETECTION<br>O.L.P.<br>CONTROL CIRCUIT<br>Derating Curve<br>100<br>70 12V~24V<br>3.3V,5V<br>50<br>30<br>25<br>-35 -30 -20 -10 0 10 20 30 40 45 50 60 70 80 85 (HORIZONTAL)<br>AMBIENT TEMPERATURE ( ℃ )<br>Output Derating VS Input Voltage<br>100<br>90<br>80<br>70<br>60<br>50<br>40<br>80 95 100 115 120 140 160 180 200 220 240 264<br>INPUT VOLTAGE (VAC) 60Hz<br>LOAD (%)<br>LOAD (%)<br>**----- End of picture text -----**<br> _File Name:MFM-20-SPEC 2022-12-19_ **- MFM 20 series** 20W High Reliable Green Medical On Board Type ## **Mechanical Specification** **==> picture [47 x 9] intentionally omitted <==** **----- Start of picture text -----**<br> Unit:inch(mm)<br>**----- End of picture text -----**<br> **==> picture [273 x 303] intentionally omitted <==** **----- Start of picture text -----**<br> 49<br>1.75<br>AC/L<br>FS1<br>+V<br>AC/N<br>-V<br>1.75 2.25<br>TOP VIEW<br>1.8 4.5<br>SIDE VIEW<br>1.05 3.5<br>23.8<br>20.75<br>1.5<br>18.5 23<br>8<br>1.5<br>1.55<br>**----- End of picture text -----**<br> ## **Installation Manual** Please refer to : http://www.meanwell.com/manual.html _File Name:MFM-20-SPEC 2022-12-19_
Updated at June 10, 2026
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