Fall Savings: 30% off select MEAN WELL models · Auto-applied in cart.  Shop Now

888.228.9138· Sun–Fri 8:30am–11pm ET
Free US Shipping over $200Ships from CA · TX · MAWholesale & Trade AccountContact

Over 15 years experience of providing support of MEAN WELL Power Supplies

1 5

Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well

Mean Well GSM40A18-P1J Power Supply 40W 18V 2.22A

SKU GSM40A18-P1J
$23.13 USD
Shipping calculated at checkout.

Select model — 6 in this family

GSM40A18-P1J
|

Your order will be processed within 24 hours

Overview

GSM40A18-P1J is the 18V output model of this series: rated current 2.22A, typical efficiency 89.5%.

GSM40A is a highly reliable, 40W single-output green medical adaptor series. This product is a class I power unit(with FG), equipped with a standard IEC320-C14 AC inlet and adopting the input range from 80VAC to 264VAC. The entire series supplies different models with output voltages between 5VDC and 48VDC that can satisfy the demands for various types of medical electrical devices. The circuitry design meets the international medical standards (2*MOPP), having an ultra low leakage current (<100μA), fitting the medical devices in direct electrical contact with the patients. With the efficiency up to 91% and the extremely low no-load power consumption below 0.15W, GSM40A is compliant with USA EISA 2007/DoE ,Canada NRCan,Australia and New Zealand MEPS, EU ErP,and meet Code of Conduct (CoC) Version 5.The supreme feature allows the adaptor to save the energy when it is either under the operating mode or the standby mode. The entire series utilizes the 94V-0 flame retardant plastic case.GSM40A is certified for the international medical safety regulations.

Features

  • 3 pole AC inlet IEC320-C14, ClassⅠpower unit
  • Medical safety approved (2 x MOPP) according to ANSI/AAMI ES60601-1 and IEC/BS EN/EN60601-1
  • Extremely low leakage current
  • No load power consumption<0.15W
  • Energy efficiency level VI and meet CoC Version 5 (Except 5~9V for Level V)
  • -30~+70℃ wide range working temperature
  • Protections: Short circuit / Overload / Over voltage
  • LED indicator for power on
  • Lifetime > 90 K hours
  • Various DC plug quick adapter accessory available (Plug kit sold sperately,please refer to : https://www.meanwell.com/upload/pdf/DC_plug.pdf)
  • 3 years warranty

Specifications

GSM40A18-P1JSpecifications from the official datasheet (2026-05-09 edition)

OUTPUT

SAFETY MODEL NO.
GSM40A18
DC VOLTAGENote.2
18V
RATED CURRENT
2.22A
CURRENT RANGE
0.1 ~ 2.22A
RATED POWER (max.)
40W
RIPPLE & NOISE (max.)Note.3
120mVp-p
VOLTAGE TOLERANCENote.4
±3.0%
LINE REGULATIONNote.5
±1.0%
LOAD REGULATION
±3.0%
SETUP, RISE TIMENote.6
1000ms, 30ms / 230VAC 1500ms, 30ms / 115VAC at full load
HOLD UP TIME (Typ.)
50ms / 230VAC 24ms / 115VAC at full load

INPUT

VOLTAGE RANGENote.7
80 ~ 264VAC
FREQUENCY RANGE
47 ~ 63Hz
EFFICIENCY (Typ.)
89.5%
AC CURRENT (Typ.)
1A / 115VAC 0.5A / 230VAC
INRUSH CURRENT (Typ.)
Cold start 30A/115VAC 60A / 230VAC
LEAKAGE CURRENT(max.)
Earth leakage current < 100μA/264VAC , Touch current < 100μA/264VAC

PROTECTION

OVERLOAD
105 ~ 160% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE
18.9 ~ 24.3V Protection type : Shut down o/p voltage, re-power on to recover

ENVIRONMENT

WORKING TEMP.
-30 ~ +70℃ (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℃ )
VIBRATION
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
OPERATING ALTITUDENote.8
3000 meters

SAFETY & EMC (Note 9)

SAFETY STANDARDS
IEC 60601-1:2005+A1+A2, 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
ISOLATION LEVEL
Primary-Secondary: 2xMOPP, Primary-Earth:1xMOPP
WITHSTAND VOLTAGE
I/P-O/P:4KVAC I/P-FG:2KVAC O/P-FG:SHORT
ISOLATION RESISTANCE
I/P-O/P, I/P-FG:100M Ohms / 500VDC / 25℃ / 70% RH
EMC EMISSION
ParameterStandardTest Level
Conducted emissionBS EN/EN55011 (CISPR11), FCC PART 15 / CISPR22Class B
Radiated emissionBS EN/EN55011 (CISPR11), FCC PART 15 / CISPR22Class B
Harmonic currentBS EN/EN61000-3-2Class A
Voltage flickerBS EN/EN61000-3-3
EMC IMMUNITY

BS EN/EN60601-1-2, BS EN/EN61204-3

ParameterStandardTest Level
ESDBS EN/EN61000-4-2Level 4, 15KV air; Level 4, 8KV contact
RF field susceptibilityBS EN/EN61000-4-3Level 3, 10V/m( 80MHz~2.7GHz ) Table 9, 9~28V/m( 385MHz~5.78GHz )
EFT burstsBS EN/EN61000-4-4Level 3, 2KV
Surge susceptibilityBS EN/EN61000-4-5Level 3, 1KV/Line-Line , 2KV/Line-FG
Conducted susceptibilityBS EN/EN61000-4-6Level 3, 10V
Magnetic field immunityBS EN/EN61000-4-8Level 4, 30A/m
Voltage dip, interruptionBS EN/EN61000-4-11100% dip 1 periods, 30% dip 25 periods, 100% interruptions 250 periods

OTHERS

MTBF
3613.2K hrs min. Telcordia SR-332 (Bellcore) ; 740.7K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
125*50*31.5mm (L*W*H)
PACKING
0.25Kg; 40pcs/ 12Kg/1.04CUFT

CONNECTOR

PLUG
See page 4~5 ; Other type available by customer requested
CABLE
See page 4~5 ; Other type available by customer requested
Test conditions and notes9
  1. 1. All parameters are specified at 230VAC input, rated load, 25℃ 70% RH ambient.
  2. 2. DC voltage: The output voltage set at point measure by plug terminal & 50% load.
  3. 3. Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1μF & 47μF capacitor.
  4. 4. Tolerance: includes set up tolerance, line regulation, load regulation.
  5. 5. Line regulation is measured from low line to high line at rated load.
  6. 6. Length of set up time is measured at first cold start. Turning ON/OFF the power supply may lead to increase of the set up time.
  7. 7. Derating may be needed under low input voltages. Pleas check the derating curve for more details.
  8. 8. 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).
  9. 9. The power supply is considered as an independent unit, but the final equipment still need to re-confirm that the whole system complies with the 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

GSM40A18-P1J Derating Curve
Derating Curve
GSM40A18-P1J Mechanical Specification
Mechanical Specification
GSM40A18-P1J DC output plug
DC output plug

Typical applications

  • Mobile clinical workstation
  • Oral irrigator
  • Portable hemodialysis machine
  • Breath Machine
  • Medical computer monitor

Downloads

FAQ

Can I use the GSM40A18-P1J for 18V industrial or embedded equipment?

It can fit 18V DC equipment that needs constant voltage and draws up to 2.22A. The total output limit is 40W, so the connected system needs to stay within both the wattage and current rating.

Is this 18V model suitable for compact control or measurement devices?

Yes, for compact control or measurement hardware that is specified for 18V constant voltage input. It is intended for loads within 40W, which makes it more appropriate for lower-power 18V electronics than larger 18V systems.

Can the GSM40A18-P1J power 18V automation accessories in an equipment cabinet?

It can be used for 18V automation accessories when the load stays at or below 2.22A. The 80-264VAC input is also useful for cabinets installed in facilities with different AC mains standards.

Would the GSM40A18-P1J work for an 18V test fixture or specialized electronic assembly?

It can, if the assembly is designed for 18V constant voltage operation and remains within the 40W output rating. The 125.0 x 50.0 x 31.5 mm housing can also matter when fitting the supply into compact test setups.

Is the GSM40A18-P1J suitable for outdoor installations or dirty environments?

The listed operating range is -30°C to +70°C, but no IP rating is given in the provided specs. That means temperature tolerance is specified, while resistance to water or dust is not confirmed by the product data here.

Payment & Security

Payment methods

  • Amazon
  • American Express
  • Apple Pay
  • Bancontact
  • Bizum
  • Diners Club
  • Discover
  • Google Pay
  • iDEAL Wero
  • Mastercard
  • PayPal
  • Satispay
  • Shop Pay
  • USDC
  • Venmo
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Other GSM40 Models

4 other models
ModelPower Voltage Current IP RatingPrice
Mean Well GSM40A12-P1J Power Supply 40W 12V 3.34A 40W 12V 3.34A IP20$23.13 View
Mean Well GSM40B48-P1J Power Supply 40W 48V 840mA 40W 48V 0.84A IP20$23.13 View
Mean Well GSM40B24-P1J Power Supply 40W 24V 1.67A 40W 24V 1.67A IP20$23.13 View
Mean Well GSM40B18-P1J Power Supply 40W 18V 2.22A 40W 18V 2.22A IP20$23.13 View
View all 174 GSM Series models
Mean Well GSM Series Power Supply 18V (18~60W) - - powersupplymall.com
Mean Well

Mean Well GSM40A18-P1J Power Supply 40W 18V 2.22A

$23.13 USD

GSM40A18-P1J is the 18V output model of this series: rated current 2.22A, typical efficiency 89.5%.

GSM40A is a highly reliable, 40W single-output green medical adaptor series. This product is a class I power unit(with FG), equipped with a standard IEC320-C14 AC inlet and adopting the input range from 80VAC to 264VAC. The entire series supplies different models with output voltages between 5VDC and 48VDC that can satisfy the demands for various types of medical electrical devices. The circuitry design meets the international medical standards (2*MOPP), having an ultra low leakage current (<100μA), fitting the medical devices in direct electrical contact with the patients. With the efficiency up to 91% and the extremely low no-load power consumption below 0.15W, GSM40A is compliant with USA EISA 2007/DoE ,Canada NRCan,Australia and New Zealand MEPS, EU ErP,and meet Code of Conduct (CoC) Version 5.The supreme feature allows the adaptor to save the energy when it is either under the operating mode or the standby mode. The entire series utilizes the 94V-0 flame retardant plastic case.GSM40A is certified for the international medical safety regulations.

Features

  • 3 pole AC inlet IEC320-C14, ClassⅠpower unit
  • Medical safety approved (2 x MOPP) according to ANSI/AAMI ES60601-1 and IEC/BS EN/EN60601-1
  • Extremely low leakage current
  • No load power consumption<0.15W
  • Energy efficiency level VI and meet CoC Version 5 (Except 5~9V for Level V)
  • -30~+70℃ wide range working temperature
  • Protections: Short circuit / Overload / Over voltage
  • LED indicator for power on
  • Lifetime > 90 K hours
  • Various DC plug quick adapter accessory available (Plug kit sold sperately,please refer to : https://www.meanwell.com/upload/pdf/DC_plug.pdf)
  • 3 years warranty

Typical applications

  • Mobile clinical workstation
  • Oral irrigator
  • Portable hemodialysis machine
  • Breath Machine
  • Medical computer monitor

Model

  • 18W 18V 2 Pole
  • 25W 18V 2 Pole
  • 40W 18V 3 Pole
  • 40W 18V 2 Pole
  • 60W 18V 3 Pole
  • 60W 18V 2 Pole
View product

  • Call us

    888.228.9138

  • Email us

    contact@powersupplymall.com

  • Business Hours

    Sun-Fri 8:30am-11:00pm EST

  • Wholesale and Trade Account

    Let's grow together
Back to top