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Mean Well GSM18E48-P1J Power Supply 18W 48V 375mA

Name: Mean Well GSM18E48-P1J Power Supply 18W 48V 375mA
Brand: Mean Well
SKU: GSM18E48-P1J
Price: 20.48 USD
Availability: InStock

SKU GSM18E48-P1J

$20.48 USD

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GSM18E48-P1J

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Product variants

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Overview

GSM18E48-P1J is the 48V output model of this series: rated current 0.375A, typical efficiency 88%. Type P1J: Plug for standard model, 2.1$\phi$ x 5.5$\phi$ x11mm, c+, tuning fork type.

GSM18E is a highly reliable, 18W wall-mounted style single-output green medical adaptor series. This product is equipped with a 2-pin (no FG) standard European power plug, adopting the input range from 80VAC to 264VAC. The entire series supplies different output voltages between 5VDC and 48VDC that can satisfy the demands for various kinds of miniaiture medical devices. The circuitry design meets the international medical standards (2 × MOPP), having an ultra low leakage current (<50 μA), fitting the medical devices in direct electrical contact with the patients. With the efficiency up to 88% and the extreme low no-load power consumption below 0.1W, GSM18E is compliant with 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, providing the double insulation that effectively prevents electrical shock. GSM18E is approved with the international medical safety certificates.

Features

2 pole EURO plug , Class Ⅱ power unit
Medical safety approved (2 × MOPP) according to EN60601-1/-1-11
Extremely low leakage current
No load power consumption<0.1W
Energy efficiency Level Ⅵ and meet CoC version 5 ( except 5~9V for Level Ⅴ)
-25~+60℃ wide range working temperature
Protections: Short circuit / Overload / Over voltage
LED indicator for power on
Various DC plug quick adaptor accessory available (Plug kit sold seperate, please refer to : https://www.meanwell.com/upload/pdf/DC_plug.pdf)
3 years warranty

Specifications

GSM18E48-P1JSpecifications from the official datasheet (2026-04-03 edition)Download datasheet PDF

OUTPUT

SAFETY MODEL NO.: GSM18E48
DC VOLTAGE^Note.2: 48V
RATED CURRENT: 0.375A
CURRENT RANGE: 0 ~ 0.375A
RATED POWER (max.): 18W
RIPPLE & NOISE (max.)^Note.3: 240mVp-p
VOLTAGE TOLERANCE^Note.4: ±2.0%
LINE REGULATION^Note.5: ±1.0%
LOAD REGULATION: ±2.0%
SETUP, RISE TIME^Note.6: 500ms, 30ms / 230VAC 1000ms, 30ms / 115VAC at full load
HOLD UP TIME (Typ.): 16ms / 230VAC 16ms / 115VAC at full load

INPUT

VOLTAGE RANGE^Note.7: 80 ~ 264VAC 113 ~ 370VDC
FREQUENCY RANGE: 47 ~ 63Hz
EFFICIENCY (Typ.): 88%
AC CURRENT (Typ.): 0.5A / 115VAC 0.25A / 230VAC
INRUSH CURRENT (Typ.): 55A / 230VAC 30A / 115VAC
LEAKAGE CURRENT(max.): Touch current < 50μA/264VAC

PROTECTION

OVERLOAD: 105 ~ 170% 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

ENVIRONMENT

WORKING TEMP.: -25 ~ +60℃ (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% / ℃ (0~40℃)
VIBRATION: 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC (Note. 8)

SAFETY STANDARDS: IEC 60601-1:2005+A1+A2; IEC 60601-1-11:2015+A1, TUV BS EN/ EN 60601-1:2006+A1+A12+A2; BS EN/ EN 60601-1-11:2015+A1, EAC TP TC 004 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: Parameter Standard Test Level

Conducted emission EN55011 (CISPR11) Class B
Radiated emission EN55011 (CISPR11) Class B
Harmonic current EN61000-3-2 Class A
Voltage flicker EN61000-3-3 -----
EMC IMMUNITY: EN60601-1-2, EN61204-3

Parameter Standard Test Level

ESD EN61000-4-2 Level 4, 15KV air; Level 4, 8KV contact
RF field susceptibility EN61000-4-3 Level 3, 10V/m( 80MHz~2.7GHz ) Table 9, 9~28V/m( 385MHz~5.78GHz )
EFT bursts EN61000-4-4 Level 3, 2KV
Surge susceptibility EN61000-4-5 Level 3, 1KV/Line-Line
Conducted susceptibility EN61000-4-6 Level 3, 10V
Magnetic field immunity EN61000-4-8 Level 4, 30A/m
Voltage dip, interruption EN61000-4-11 100% dip 1 periods, 30% dip 25 periods, 100% interruptions 250 periods

Parameter	Standard	Test Level
Conducted emission	EN55011 (CISPR11)	Class B
Radiated emission	EN55011 (CISPR11)	Class B
Harmonic current	EN61000-3-2	Class A
Voltage flicker	EN61000-3-3	-----

Parameter	Standard	Test Level
ESD	EN61000-4-2	Level 4, 15KV air; Level 4, 8KV contact
RF field susceptibility	EN61000-4-3	Level 3, 10V/m( 80MHz~2.7GHz ) Table 9, 9~28V/m( 385MHz~5.78GHz )
EFT bursts	EN61000-4-4	Level 3, 2KV
Surge susceptibility	EN61000-4-5	Level 3, 1KV/Line-Line
Conducted susceptibility	EN61000-4-6	Level 3, 10V
Magnetic field immunity	EN61000-4-8	Level 4, 30A/m
Voltage dip, interruption	EN61000-4-11	100% dip 1 periods, 30% dip 25 periods, 100% interruptions 250 periods

OTHERS

MTBF: 3888.9K hrs min. Telcordia SR-332 (Bellcore) ; 794.6K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 79*54*33mm (L*W*H)
PACKING: 200g ; 60pcs / 13Kg / CARTON

CONNECTOR

PLUG: See page 4~5 ; Other type available by customer requested
CABLE: See page 4~5 ; Other type available by customer requested

MODEL ENCODING

P1J (this model): Plug for standard model, 2.1$\phi$ x 5.5$\phi$ x11mm, c+, tuning fork type
Blank: Other options available by customer requested (see Page 4~5)

Test conditions and notes8

1. All parameters are specified at 230VAC input, rated load, 25℃ 70% RH ambient.
2. DC voltage: The output voltage set at point measure by plug terminal & 50% load.
3. Ripple & noise are measured at 20MHz by using a 12" twisted pair terminated with a 0.1μF & 47μF capacitor.
4. Tolerance: includes set up tolerance, line regulation, load regulation.
5. Line regulation is measured from low line to high line at rated load.
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. Derating may be needed under low input voltage. Please check the derating curve for more details.
8. 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

GSM18E48-P1J Derating Curve — Derating Curve

GSM18E48-P1J Mechanical Specification — Mechanical Specification

GSM18E48-P1J DC output plug — DC output plug

GSM18E48-P1J G S M 1 8 E series — G S M 1 8 E series

Typical applications

Blood glucose meter
Blood pressure meter
Nebulizer
Inhaler
Portable medical device

Downloads

Datasheet1

GSM18E48-P1J datasheetGSM18E-SPEC.PDF · 2026-04-03 edition PDF Download

Certificates4

EMC Certificate (ELG-75)(EN) PDF Download

EMC Certificate (GSM18E)(EN) PDF Download

CB Certificate(GSM18E)(EN) PDF Download

TUV Certificate(GSM18E)(EN) PDF Download

Test reports1

Test Report(GSM18E48-P1J)(EN) PDF Download

Catalogues3

Mean Well Medical Catalog PDF Download

Mean Well Adaptor Catalog PDF Download

Mean Well Catalog (Industrial) PDF Download

FAQ

Can I use the GSM18E48-P1J for low-power 48V telecom or networking equipment?

This unit provides constant 48V DC at up to 0.375A, with 18W total power. That makes it suitable for low-power 48V telecom, communication, or networking equipment that requires a fixed 48V source within that output range.

Is the GSM18E48-P1J appropriate for 48V industrial communication devices?

It can fit industrial communication devices or embedded communication hardware designed for 48V DC constant-voltage input and drawing no more than 0.375A. It is better suited to lighter 48V loads than to higher-power field equipment.

Can this 48V model power a compact embedded system that uses 48V DC input?

Yes, if the system requires regulated 48V DC and its total demand stays within 18W. The 80-264VAC input range is also useful where the same equipment may be used with different AC mains conditions.

Is the GSM18E48-P1J suitable for outdoor installations?

The operating temperature specification is -25°C to +60°C. The provided specs do not include an IP rating, so outdoor or exposed-environment suitability is not established by the product data here.

Is this a fixed 48V constant-voltage supply rather than a constant-current power source?

Yes. The GSM18E48-P1J is a constant-voltage power supply with a fixed 48V output and a maximum output current of 0.375A, so it should be matched to equipment designed for constant-voltage input.

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