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Mean Well

Mean Well GST18A48-P1J Power Supply 18W 48V 375mA

SKU GST18A48-P1J
$17.97 USD
Shipping calculated at checkout.

Select model — 12 in this family

GST18A48-P1J
In stock
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Overview

GST18A48-P1J is the 48V output model of this series: rated current 0.375A, typical efficiency 89%. Type P1J: Standard model,2.1 φ x5.5 φ x11mm,C+,tuning fork type.

GST18A is a highly reliable, 18W desktop style single-output green adaptor series. This product is a classⅠ power unit (with FG), equipped with a standard IEC320-C14 AC inlet and adopting the input range from 85VAC to 264VAC. The entire series supplies different models with output voltages ranging between 5VDC and 48VDC that can satisfy the demands for various types of consumer electronic devices. With the efficiency up to 89% and the extremely low no-load power consumption below 0.075W, GST18A is compliant with USA EISA 2007/DoE, Canada NRCan, Australia and New Zealand MEPS, Korea K-MEPS, EU ErP, and 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.GST18A is certified for the international safety regulations.

Features

  • Global certificates
  • Universal AC input / Full range
  • 3 pole AC inlet IEC320-C14,ClassⅠpower unit
  • No load power consumption< 0.075W
  • Energy efficiency Level Ⅵ
  • Comply with EISA 2007/DoE,NRCan,Korea K-MEPS, AU/NZ MEPS,EU ErP and CoC Version 5
  • Protections: Short circuit / Overload / Over voltage
  • Fully enclosed plastic case
  • Pass LPS
  • -30~+70℃ wide range working temperature
  • LED indicator for power on
  • Various DC plug quick adaptor accessory available (Plug kit sold sperately, please refer to : https://www.meanwell.com/upload/pdf/DC_plug.pdf)
  • 3 years warranty

Specifications

GST18A48-P1JSpecifications from the official datasheet (2026-04-03 edition)

OUTPUT

SAFETY MODEL NO.
GST18A48
DC VOLTAGENote.2
48V
RATED CURRENT
0.375A
CURRENT RANGE
0 ~ 0.375A
RATED POWER (max.)
18W
RIPPLE & NOISE (max.)Note.3
150mVp-p
VOLTAGE TOLERANCENote.4
±2.0%
LINE REGULATIONNote.5
±1.0%
LOAD REGULATIONNote.6
±2.0%
SETUP, RISE, HOLD UP TIME
1000ms, 30ms, 50ms/230VAC 1500ms, 30ms, 15ms/115VAC at full load

INPUT

VOLTAGE RANGENote.7
85 ~ 264VAC
FREQUENCY RANGE
47 ~ 63Hz
EFFICIENCY (Typ.)
89%
AC CURRENT
0.5A / 115VAC 0.3A / 230VAC
INRUSH CURRENT (max.)
Cold start 35A / 115VAC 65A / 230VAC
LEAKAGE CURRENT(max.)
0.75mA / 240VAC

PROTECTION

OVERLOAD
110 ~ 150% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE
110 ~ 140% rated output voltage Protection type : Clamp by zener diode, output short

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

SAFETY & EMC

SAFETY STANDARDSNote. 8
UL62368-1, CSA C22.2 No.62368-1, TUV BS EN/EN62368-1, BSMI CNS15598-1 , CCC GB4943.1, PSE J62368-1, AS/NZS 62368.1，BIS IS13252, KC K60950-1, EAC TP TC 004 approved
WITHSTAND VOLTAGE
I/P-O/P:4242VDC , I/P-FG:2121VDC
ISOLATION RESISTANCE
I/P-O/P, I/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSIONNote. 9
ParameterStandardTest Level
Conducted emissionBS EN/EN55032(CISPR32),FCC PART 15/CISPR22 CAN ICES-3(B)/NMB-3(B),CNS15936,GB17625.1 EAC TP TC 020,MSIP KN32Class B
Radiated emissionBS EN/EN55032(CISPR32),FCC PART 15/CISPR22 CAN ICES-3(B)/NMB-3(B),CNS15936,GB17625.1 EAC TP TC 020,MSIP KN32Class B
Harmonic currentBS EN/EN61000-3-2,GB9254Class A
Voltage flickerBS EN/EN61000-3-3
EMC IMMUNITYNote. 9

BS EN/EN55035

ParameterStandardTest Level
ESDBS EN/EN61000-4-2Level 3, 8KV air; Level 2, 4KV contact
RF field susceptibilityBS EN/EN61000-4-3Level 2, 3V/m
EFT burstsBS EN/EN61000-4-4Level 2, 1KV
Surge susceptibilityBS EN/EN61000-4-5Level 3, 1KV/Line-Line , 2KV/Line-FG
Conducted susceptibilityBS EN/EN61000-4-6Level 2, 3V
Magnetic field immunityBS EN/EN61000-4-8Level 2, 3A/m
Voltage dips , interruptionBS EN/EN61000-4-11＞95% dip 0. 5 periods, 30% dip 25 periods, ＞95% interruptions 250 periods

OTHERS

MTBF
3879.7K hrs min. Telcordia SR-332 (Bellcore) ; 668.4K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
93*54*36mm (L*W*H)
PACKING
209g; 60pcs/13.5Kg/1.02CUFT

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)
Standard model,2.1 φ x5.5 φ x11mm,C+,tuning fork type
Blank
Other options available by customer requested (see Page 4~5)
Test conditions and notes8
  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.Load regulation is measured from 10% to 100% rated load.
  7. 7.Derating may be needed under low input voltage. Please check the derating curve for more details.
  8. 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

GST18A48-P1J Derating Curve
Derating Curve
GST18A48-P1J Mechanical Specification
Mechanical Specification
GST18A48-P1J DC output plug
DC output plug

Typical applications

  • Consumer electronic devices
  • Telecommunication devices
  • Office facilities
  • Industrial equipments

Downloads

FAQ

Can I use the GST18A48-P1J for a small 48V telecom or network device?

Yes, if the equipment requires constant 48V DC and its current draw stays within 0.375A. This model provides up to 18W, so it is intended for lower-power 48V loads rather than higher-draw telecom gear.

Is this 48V power supply suitable for embedded communications or control electronics?

It can be appropriate for compact 48V electronics that need a regulated constant-voltage input. The output is limited to 0.375A, and the input range is 85-264VAC for broad AC mains compatibility.

Can the GST18A48-P1J power a 48V monitoring, access, or industrial interface device?

It may be used with light-duty 48V devices when their total demand stays at or below 18W. Selection should be based on the device needing constant-voltage 48V operation and no more than 0.375A output current.

How do I check whether this 48V adapter is the right match for my equipment?

Confirm that the device specifies 48V DC input and that its load does not exceed 0.375A. Those limits define the usable envelope for this 18W constant-voltage power supply.

Is the GST18A48-P1J suitable for outdoor cabinets or exposed installations?

The listed operating temperature range is -30°C to +70°C, so the temperature capability is relatively broad. But no IP rating appears in the provided specs, so outdoor or exposed-environment use cannot be confirmed from this specification set.

Payment & Security

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

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Mean Well GST18A48-P1J Power Supply 18W 48V 375mA
Mean Well

Mean Well GST18A48-P1J Power Supply 18W 48V 375mA

$17.97 USD

GST18A48-P1J is the 48V output model of this series: rated current 0.375A, typical efficiency 89%. Type P1J: Standard model,2.1 φ x5.5 φ x11mm,C+,tuning fork type.

GST18A is a highly reliable, 18W desktop style single-output green adaptor series. This product is a classⅠ power unit (with FG), equipped with a standard IEC320-C14 AC inlet and adopting the input range from 85VAC to 264VAC. The entire series supplies different models with output voltages ranging between 5VDC and 48VDC that can satisfy the demands for various types of consumer electronic devices. With the efficiency up to 89% and the extremely low no-load power consumption below 0.075W, GST18A is compliant with USA EISA 2007/DoE, Canada NRCan, Australia and New Zealand MEPS, Korea K-MEPS, EU ErP, and 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.GST18A is certified for the international safety regulations.

Features

  • Global certificates
  • Universal AC input / Full range
  • 3 pole AC inlet IEC320-C14,ClassⅠpower unit
  • No load power consumption< 0.075W
  • Energy efficiency Level Ⅵ
  • Comply with EISA 2007/DoE,NRCan,Korea K-MEPS, AU/NZ MEPS,EU ErP and CoC Version 5
  • Protections: Short circuit / Overload / Over voltage
  • Fully enclosed plastic case
  • Pass LPS
  • -30~+70℃ wide range working temperature
  • LED indicator for power on
  • Various DC plug quick adaptor accessory available (Plug kit sold sperately, please refer to : https://www.meanwell.com/upload/pdf/DC_plug.pdf)
  • 3 years warranty

Typical applications

  • Consumer electronic devices
  • Telecommunication devices
  • Office facilities
  • Industrial equipments

Model

  • 18W 48V 2 Pole
  • 18W 48V 3 Pole
  • 25W 48V 2 Pole
  • 25W 48V 3 Pole
  • 36W 48V 2 Pole
  • 40W 48V 3 Pole
  • 60W 48V 3 Pole
  • 90W 48V 3 Pole
  • 120W 48V 3 Pole
  • 160W 48V 3 Pole
  • 220W 48V 3 Pole
  • 280W 48V 3 Pole
View product

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