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79 x 54 x 33mm | 80~264VAC Input (113~370VDC) | 8 Output Models 5V ~ 48VDC | 15W~18W | Fixed USA 2-Pole Plug (No FG) | Class II Double Insulated | 2xMOPP | Touch Current <50uA | No-Load <0.1W | Efficiency Level VI (Level V for 5~9V Models) | -25~+60C | 3-Year Warranty
The MEAN WELL GSM18U series is a high-reliability 18W AC-DC wall-mount single-output green medical adapter with a fixed 2-pole USA plug (no FG). It accepts 80~264VAC input and provides eight output voltages from 5V to 48VDC, covering the supply needs of small medical equipment such as blood glucose meters, blood pressure monitors, nebulizers, inhalers and other portable medical devices.
The circuit is designed to international medical standards with 2xMOPP (two Means Of Patient Protection) primary-to-secondary isolation and an ultra-low touch current below 50uA at 264VAC, making it suitable for medical devices with direct patient contact. Withstand voltage is 4KVAC input-to-output and insulation resistance is 100M Ohms minimum. The 94V-0 flame-retardant plastic enclosure provides double insulation, so the adapter is a Class II construction that needs no functional earth connection.
Efficiency reaches 88% with no-load power consumption below 0.1W, meeting Efficiency Level VI (Level V for the 5V, 7.5V and 9V models) and complying with USA EISA 2007/DoE and Canada NRCan. Medical safety approvals include ANSI/AAMI ES60601-1/-1-11, IEC 60601-1/-1-11, CAN/CSA C22.2 No. 60601-1/-1-11 and EAC TP TC 004, with conducted and radiated emissions to FCC Part 15 / CISPR22 Class B.
The standard DC output plug is the P1J (5.5 x 2.1 x 11mm tuning fork, center positive). Tuning fork, barrel, lock, min. pin, center pin and DIN style plugs can be fitted at the factory on request, and quick-change DC plug adapters are available separately so the same adapter can serve devices with different sockets. Protections cover short circuit, overload (105%~170%, hiccup mode with auto-recovery) and over voltage (output shutdown, restart to recover). The adapter operates from -25C to +60C and is backed by a 3-year warranty.
Output ratings for all eight GSM18U models. All values measured at 115VAC input, rated load, 25C / 70%RH unless otherwise noted.
| Model | Output Voltage | Rated Current | Current Range | Rated Power (Max) | Efficiency (Typ.) |
|---|---|---|---|---|---|
| GSM18U05-P1J | 5V | 3A | 0 ~ 3A | 15W | 80% |
| GSM18U07-P1J | 7.5V | 2A | 0 ~ 2A | 15W | 83% |
| GSM18U09-P1J | 9V | 2A | 0 ~ 2A | 18W | 84% |
| GSM18U12-P1J | 12V | 1.5A | 0 ~ 1.5A | 18W | 86% |
| GSM18U15-P1J | 15V | 1.2A | 0 ~ 1.2A | 18W | 87% |
| GSM18U18-P1J | 18V | 1A | 0 ~ 1A | 18W | 87% |
| GSM18U24-P1J | 24V | 0.75A | 0 ~ 0.75A | 18W | 87% |
| GSM18U48-P1J | 48V | 0.375A | 0 ~ 0.375A | 18W | 88% |
| Model | Ripple & Noise (Max) | Voltage Tolerance | Line Regulation | Load Regulation | Over-Voltage Protection |
|---|---|---|---|---|---|
| GSM18U05-P1J | 60mVp-p | ±5.0% | ±1.0% | ±5.0% | 5.25 ~ 7.5V |
| GSM18U07-P1J | 80mVp-p | ±5.0% | ±1.0% | ±5.0% | 7.88 ~ 10.13V |
| GSM18U09-P1J | 80mVp-p | ±5.0% | ±1.0% | ±5.0% | 9.45 ~ 12.6V |
| GSM18U12-P1J | 120mVp-p | ±3.0% | ±1.0% | ±3.0% | 12.6 ~ 17.2V |
| GSM18U15-P1J | 120mVp-p | ±3.0% | ±1.0% | ±3.0% | 15.75 ~ 20.25V |
| GSM18U18-P1J | 150mVp-p | ±3.0% | ±1.0% | ±3.0% | 18.9 ~ 24.3V |
| GSM18U24-P1J | 180mVp-p | ±2.0% | ±1.0% | ±2.0% | 25.2 ~ 32.4V |
| GSM18U48-P1J | 240mVp-p | ±2.0% | ±1.0% | ±2.0% | 50.4 ~ 64.8V |
| Style | Type | Model | OD x ID x L (mm) | Quick-Change Adapter |
|---|---|---|---|---|
| Standard | Tuning fork, center positive | P1J | 5.5 x 2.1 x 11.0 | Available (7.5A max) |
| Tuning Fork | Straight | P1I / P1L / P1M | 5.5 x 2.1 x 9.5 / 5.5 x 2.5 x 9.5 / 5.5 x 2.5 x 11.0 | Available (7.5A max) |
| Tuning Fork | Right-angled | P1IR / P1JR / P1LR / P1MR | 5.5 x 2.1 x 9.5 / 5.5 x 2.1 x 11.0 / 5.5 x 2.5 x 9.5 / 5.5 x 2.5 x 11.0 | Available (7.5A max) |
| Barrel | Straight | P2I / P2J / P2L / P2M | 5.5 x 2.1 x 9.5 / 5.5 x 2.1 x 11.0 / 5.5 x 2.5 x 9.5 / 5.5 x 2.5 x 11.0 | Not available |
| Barrel | Right-angled | P2IR / P2JR / P2LR / P2MR | 5.5 x 2.1 x 9.5 / 5.5 x 2.1 x 11.0 / 5.5 x 2.5 x 9.5 / 5.5 x 2.5 x 11.0 | Not available |
| Lock (SWITCHCRAFT original or equivalent) | Floating locking | P2S (S761K) / P2K (761K) | 5.53 x 2.03 x 12.06 / 5.53 x 2.54 x 12.06 | Not available |
| Lock (SWITCHCRAFT original or equivalent) | - | P2C (S760K) / P2D (760K) | 5.53 x 2.03 x 9.52 / 5.53 x 2.54 x 9.52 | Not available |
| Min. Pin (EIAJ equivalent) | - | P3A / P3B / P3C | 2.35 x 0.7 x 11.0 / 4.0 x 1.7 x 11.0 / 4.75 x 1.7 x 11.0 | Available (5A max) |
| Center Pin (EIAJ equivalent) | - | P4A / P4B / P4C | 5.5 x 3.4 x 11.0 (pin 1.0) / 6.5 x 4.4 x 11.0 (pin 1.4) / 7.4 x 5.1 x 11.0 (pin 0.6) | Available (7.5A max) |
| Min. DIN 3 Pin with Lock (male) | KYCON KPPX-3P equivalent | R6B | - | Available (7.5A max) |
| Min. DIN 4 Pin with Lock (male) | KYCON KPPX-4P equivalent | R7B | - | Available (7.5A max) |
| Min. DIN 4 Pin with Lock (female) | KYCON KPJX-CM-4S equivalent | R7BF | - | Not available |
| DIN 5 Pin (male) | - | R1B | - | Available (7.5A max) |
| Stripped & tinned leads | Custom | Custom (MOQ required) | Red +Vo / Black -Vo | standard L: 25mm, L1: 5mm | Not available |
Note: quick-change adapter availability is listed per plug family as published in the MEAN WELL datasheet, and the standard P1J plug belongs to the tuning fork family. Custom plug versions require a minimum order quantity; wire colors on stripped-lead versions are for reference only.
| AC Input Range | 80~264VAC | 113~370VDC | 47~63Hz |
| AC Current (Typ.) | 0.5A / 115VAC | 0.25A / 230VAC |
| Inrush Current (Typ.) | 55A / 230VAC | 30A / 115VAC |
| Leakage Current (Max.) | Touch current <50uA / 264VAC |
| Efficiency | 80%~88% depending on model | Efficiency Level VI (Level V for the 5V / 7.5V / 9V models) | Complies with USA EISA 2007/DoE and Canada NRCan |
| No-Load Power Consumption | <0.1W |
| Set Up / Rise Time | 500ms, 30ms / 230VAC | 1000ms, 30ms / 115VAC at full load |
| Hold Up Time (Typ.) | 16ms / 230VAC | 16ms / 115VAC at full load |
| Overload Protection | 105%~170% of rated output power | Hiccup mode, auto-recovery after fault condition is removed |
| Over-Voltage Protection | Shuts down output, restart to recover (per-model trip window listed in the tables above) |
| Operating Temp / Humidity | -25~+60C (refer to derating curve) | 20~90% RH non-condensing |
| Storage Temp / Humidity | -40~+85C | 10~95% RH non-condensing |
| Temp Coefficient | ±0.03%/C (0~40C) |
| Vibration | 10~500Hz, 2G, 10min/cycle, 60min each along X, Y, Z axis |
| DC Output Cable | UL1185 16AWG 1200±50mm for 5~9V models | UL1185 18AWG 1800±50mm for 12~48V models |
| MTBF | 3889.1K hrs min. Telcordia SR-332 (Bellcore) | 794.6K hrs min. MIL-HDBK-217F (25C) |
| Dimensions / Packing | 79 x 54 x 33mm (L*W*H) | 185g; 60pcs / 12.1Kg / carton |
| Medical Safety Standards | IEC 60601-1:2005+A1+A2; IEC 60601-1-11:2015+A1; ANSI/AAMI ES60601-1:2005+A2; ANSI/AAMI HA60601-1-11+A1; CAN/CSA C22.2 No. 60601-1:2014+A2; CSA C22.2 No. 60601-1-11:2015+A1; EAC TP TC 004 |
| Insulation / MOPP | Primary to secondary: 2xMOPP (two Means Of Patient Protection) |
| Withstand Voltage | I/P-O/P: 4KVAC |
| Insulation Resistance | I/P-O/P: 100M Ohms / 500VDC / 25C / 70% RH |
| EMC Emission | Conducted emission: FCC Part 15 / CISPR22 Class B | Radiated emission: FCC Part 15 / CISPR22 Class B |
| Housing / Protection Class | 94V-0 flame-retardant plastic enclosure | Class II double insulated | Protections: short circuit / overload / over voltage |
| Warranty | 3 years |
GSM18U complies with IEC 60601-1:2005+A1+A2, IEC 60601-1-11:2015+A1, ANSI/AAMI ES60601-1:2005+A2, ANSI/AAMI HA60601-1-11+A1, CAN/CSA C22.2 No. 60601-1:2014+A2, CSA C22.2 No. 60601-1-11:2015+A1 and EAC TP TC 004. Conducted and radiated emissions meet FCC Part 15 / CISPR22 Class B.
MOPP stands for Means Of Patient Protection. GSM18U provides 2xMOPP isolation between the primary and secondary side, verified with a 4KVAC withstand voltage test and 100M Ohms insulation resistance. Higher MOPP ratings allow the supply to be used in equipment whose applied parts are in contact with the patient, subject to the end-device risk assessment.
Yes. GSM18U uses a fixed 2-pole USA plug without a functional earth (FG) pin and a 94V-0 flame-retardant plastic enclosure that provides double insulation. Because the construction is Class II, no protective earth connection is required, which simplifies wiring in portable and handheld medical devices.
No. The 5V (3A) and 7.5V (2A) models are rated 15W maximum output power. The 9V, 12V, 15V, 18V, 24V and 48V models are rated 18W maximum. All eight share the same 79 x 54 x 33mm housing and the same 80~264VAC input range.
The standard plug is P1J, a 5.5 x 2.1 x 11mm tuning fork type with center positive polarity. MEAN WELL can fit other plug styles such as tuning fork, barrel, lock, min. pin, center pin and DIN connectors at the factory subject to a minimum order quantity. For small quantities, quick-change DC plug adapters are available separately and require no MOQ.
GSM18U already includes short-circuit, overload (105%~170% of rated power, hiccup mode with auto-recovery) and over-voltage protection (output shutdown, restart to recover). Note that the adapter is a component intended to be built into end equipment, so the EMC performance of the complete system must be confirmed with the finished device.
Explore every output voltage in the GSM18U family.
79 x 54 x 33mm | 80~264VAC Input (113~370VDC) | 8 Output Models 5V ~ 48VDC | 15W~18W | Fixed USA 2-Pole Plug (No FG) | Class II Double Insulated | 2xMOPP | Touch Current <50uA | No-Load <0.1W | Efficiency Level VI (Level V for 5~9V Models) | -25~+60C | 3-Year Warranty
The MEAN WELL GSM18U series is a high-reliability 18W AC-DC wall-mount single-output green medical adapter with a fixed 2-pole USA plug (no FG). It accepts 80~264VAC input and provides eight output voltages from 5V to 48VDC, covering the supply needs of small medical equipment such as blood glucose meters, blood pressure monitors, nebulizers, inhalers and other portable medical devices.
The circuit is designed to international medical standards with 2xMOPP (two Means Of Patient Protection) primary-to-secondary isolation and an ultra-low touch current below 50uA at 264VAC, making it suitable for medical devices with direct patient contact. Withstand voltage is 4KVAC input-to-output and insulation resistance is 100M Ohms minimum. The 94V-0 flame-retardant plastic enclosure provides double insulation, so the adapter is a Class II construction that needs no functional earth connection.
Efficiency reaches 88% with no-load power consumption below 0.1W, meeting Efficiency Level VI (Level V for the 5V, 7.5V and 9V models) and complying with USA EISA 2007/DoE and Canada NRCan. Medical safety approvals include ANSI/AAMI ES60601-1/-1-11, IEC 60601-1/-1-11, CAN/CSA C22.2 No. 60601-1/-1-11 and EAC TP TC 004, with conducted and radiated emissions to FCC Part 15 / CISPR22 Class B.
The standard DC output plug is the P1J (5.5 x 2.1 x 11mm tuning fork, center positive). Tuning fork, barrel, lock, min. pin, center pin and DIN style plugs can be fitted at the factory on request, and quick-change DC plug adapters are available separately so the same adapter can serve devices with different sockets. Protections cover short circuit, overload (105%~170%, hiccup mode with auto-recovery) and over voltage (output shutdown, restart to recover). The adapter operates from -25C to +60C and is backed by a 3-year warranty.
Output ratings for all eight GSM18U models. All values measured at 115VAC input, rated load, 25C / 70%RH unless otherwise noted.
| Model | Output Voltage | Rated Current | Current Range | Rated Power (Max) | Efficiency (Typ.) |
|---|---|---|---|---|---|
| GSM18U05-P1J | 5V | 3A | 0 ~ 3A | 15W | 80% |
| GSM18U07-P1J | 7.5V | 2A | 0 ~ 2A | 15W | 83% |
| GSM18U09-P1J | 9V | 2A | 0 ~ 2A | 18W | 84% |
| GSM18U12-P1J | 12V | 1.5A | 0 ~ 1.5A | 18W | 86% |
| GSM18U15-P1J | 15V | 1.2A | 0 ~ 1.2A | 18W | 87% |
| GSM18U18-P1J | 18V | 1A | 0 ~ 1A | 18W | 87% |
| GSM18U24-P1J | 24V | 0.75A | 0 ~ 0.75A | 18W | 87% |
| GSM18U48-P1J | 48V | 0.375A | 0 ~ 0.375A | 18W | 88% |
| Model | Ripple & Noise (Max) | Voltage Tolerance | Line Regulation | Load Regulation | Over-Voltage Protection |
|---|---|---|---|---|---|
| GSM18U05-P1J | 60mVp-p | ±5.0% | ±1.0% | ±5.0% | 5.25 ~ 7.5V |
| GSM18U07-P1J | 80mVp-p | ±5.0% | ±1.0% | ±5.0% | 7.88 ~ 10.13V |
| GSM18U09-P1J | 80mVp-p | ±5.0% | ±1.0% | ±5.0% | 9.45 ~ 12.6V |
| GSM18U12-P1J | 120mVp-p | ±3.0% | ±1.0% | ±3.0% | 12.6 ~ 17.2V |
| GSM18U15-P1J | 120mVp-p | ±3.0% | ±1.0% | ±3.0% | 15.75 ~ 20.25V |
| GSM18U18-P1J | 150mVp-p | ±3.0% | ±1.0% | ±3.0% | 18.9 ~ 24.3V |
| GSM18U24-P1J | 180mVp-p | ±2.0% | ±1.0% | ±2.0% | 25.2 ~ 32.4V |
| GSM18U48-P1J | 240mVp-p | ±2.0% | ±1.0% | ±2.0% | 50.4 ~ 64.8V |
| Style | Type | Model | OD x ID x L (mm) | Quick-Change Adapter |
|---|---|---|---|---|
| Standard | Tuning fork, center positive | P1J | 5.5 x 2.1 x 11.0 | Available (7.5A max) |
| Tuning Fork | Straight | P1I / P1L / P1M | 5.5 x 2.1 x 9.5 / 5.5 x 2.5 x 9.5 / 5.5 x 2.5 x 11.0 | Available (7.5A max) |
| Tuning Fork | Right-angled | P1IR / P1JR / P1LR / P1MR | 5.5 x 2.1 x 9.5 / 5.5 x 2.1 x 11.0 / 5.5 x 2.5 x 9.5 / 5.5 x 2.5 x 11.0 | Available (7.5A max) |
| Barrel | Straight | P2I / P2J / P2L / P2M | 5.5 x 2.1 x 9.5 / 5.5 x 2.1 x 11.0 / 5.5 x 2.5 x 9.5 / 5.5 x 2.5 x 11.0 | Not available |
| Barrel | Right-angled | P2IR / P2JR / P2LR / P2MR | 5.5 x 2.1 x 9.5 / 5.5 x 2.1 x 11.0 / 5.5 x 2.5 x 9.5 / 5.5 x 2.5 x 11.0 | Not available |
| Lock (SWITCHCRAFT original or equivalent) | Floating locking | P2S (S761K) / P2K (761K) | 5.53 x 2.03 x 12.06 / 5.53 x 2.54 x 12.06 | Not available |
| Lock (SWITCHCRAFT original or equivalent) | - | P2C (S760K) / P2D (760K) | 5.53 x 2.03 x 9.52 / 5.53 x 2.54 x 9.52 | Not available |
| Min. Pin (EIAJ equivalent) | - | P3A / P3B / P3C | 2.35 x 0.7 x 11.0 / 4.0 x 1.7 x 11.0 / 4.75 x 1.7 x 11.0 | Available (5A max) |
| Center Pin (EIAJ equivalent) | - | P4A / P4B / P4C | 5.5 x 3.4 x 11.0 (pin 1.0) / 6.5 x 4.4 x 11.0 (pin 1.4) / 7.4 x 5.1 x 11.0 (pin 0.6) | Available (7.5A max) |
| Min. DIN 3 Pin with Lock (male) | KYCON KPPX-3P equivalent | R6B | - | Available (7.5A max) |
| Min. DIN 4 Pin with Lock (male) | KYCON KPPX-4P equivalent | R7B | - | Available (7.5A max) |
| Min. DIN 4 Pin with Lock (female) | KYCON KPJX-CM-4S equivalent | R7BF | - | Not available |
| DIN 5 Pin (male) | - | R1B | - | Available (7.5A max) |
| Stripped & tinned leads | Custom | Custom (MOQ required) | Red +Vo / Black -Vo | standard L: 25mm, L1: 5mm | Not available |
Note: quick-change adapter availability is listed per plug family as published in the MEAN WELL datasheet, and the standard P1J plug belongs to the tuning fork family. Custom plug versions require a minimum order quantity; wire colors on stripped-lead versions are for reference only.
| AC Input Range | 80~264VAC | 113~370VDC | 47~63Hz |
| AC Current (Typ.) | 0.5A / 115VAC | 0.25A / 230VAC |
| Inrush Current (Typ.) | 55A / 230VAC | 30A / 115VAC |
| Leakage Current (Max.) | Touch current <50uA / 264VAC |
| Efficiency | 80%~88% depending on model | Efficiency Level VI (Level V for the 5V / 7.5V / 9V models) | Complies with USA EISA 2007/DoE and Canada NRCan |
| No-Load Power Consumption | <0.1W |
| Set Up / Rise Time | 500ms, 30ms / 230VAC | 1000ms, 30ms / 115VAC at full load |
| Hold Up Time (Typ.) | 16ms / 230VAC | 16ms / 115VAC at full load |
| Overload Protection | 105%~170% of rated output power | Hiccup mode, auto-recovery after fault condition is removed |
| Over-Voltage Protection | Shuts down output, restart to recover (per-model trip window listed in the tables above) |
| Operating Temp / Humidity | -25~+60C (refer to derating curve) | 20~90% RH non-condensing |
| Storage Temp / Humidity | -40~+85C | 10~95% RH non-condensing |
| Temp Coefficient | ±0.03%/C (0~40C) |
| Vibration | 10~500Hz, 2G, 10min/cycle, 60min each along X, Y, Z axis |
| DC Output Cable | UL1185 16AWG 1200±50mm for 5~9V models | UL1185 18AWG 1800±50mm for 12~48V models |
| MTBF | 3889.1K hrs min. Telcordia SR-332 (Bellcore) | 794.6K hrs min. MIL-HDBK-217F (25C) |
| Dimensions / Packing | 79 x 54 x 33mm (L*W*H) | 185g; 60pcs / 12.1Kg / carton |
| Medical Safety Standards | IEC 60601-1:2005+A1+A2; IEC 60601-1-11:2015+A1; ANSI/AAMI ES60601-1:2005+A2; ANSI/AAMI HA60601-1-11+A1; CAN/CSA C22.2 No. 60601-1:2014+A2; CSA C22.2 No. 60601-1-11:2015+A1; EAC TP TC 004 |
| Insulation / MOPP | Primary to secondary: 2xMOPP (two Means Of Patient Protection) |
| Withstand Voltage | I/P-O/P: 4KVAC |
| Insulation Resistance | I/P-O/P: 100M Ohms / 500VDC / 25C / 70% RH |
| EMC Emission | Conducted emission: FCC Part 15 / CISPR22 Class B | Radiated emission: FCC Part 15 / CISPR22 Class B |
| Housing / Protection Class | 94V-0 flame-retardant plastic enclosure | Class II double insulated | Protections: short circuit / overload / over voltage |
| Warranty | 3 years |
GSM18U complies with IEC 60601-1:2005+A1+A2, IEC 60601-1-11:2015+A1, ANSI/AAMI ES60601-1:2005+A2, ANSI/AAMI HA60601-1-11+A1, CAN/CSA C22.2 No. 60601-1:2014+A2, CSA C22.2 No. 60601-1-11:2015+A1 and EAC TP TC 004. Conducted and radiated emissions meet FCC Part 15 / CISPR22 Class B.
MOPP stands for Means Of Patient Protection. GSM18U provides 2xMOPP isolation between the primary and secondary side, verified with a 4KVAC withstand voltage test and 100M Ohms insulation resistance. Higher MOPP ratings allow the supply to be used in equipment whose applied parts are in contact with the patient, subject to the end-device risk assessment.
Yes. GSM18U uses a fixed 2-pole USA plug without a functional earth (FG) pin and a 94V-0 flame-retardant plastic enclosure that provides double insulation. Because the construction is Class II, no protective earth connection is required, which simplifies wiring in portable and handheld medical devices.
No. The 5V (3A) and 7.5V (2A) models are rated 15W maximum output power. The 9V, 12V, 15V, 18V, 24V and 48V models are rated 18W maximum. All eight share the same 79 x 54 x 33mm housing and the same 80~264VAC input range.
The standard plug is P1J, a 5.5 x 2.1 x 11mm tuning fork type with center positive polarity. MEAN WELL can fit other plug styles such as tuning fork, barrel, lock, min. pin, center pin and DIN connectors at the factory subject to a minimum order quantity. For small quantities, quick-change DC plug adapters are available separately and require no MOQ.
GSM18U already includes short-circuit, overload (105%~170% of rated power, hiccup mode with auto-recovery) and over-voltage protection (output shutdown, restart to recover). Note that the adapter is a component intended to be built into end equipment, so the EMC performance of the complete system must be confirmed with the finished device.
Explore every output voltage in the GSM18U family.
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