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Mean Well

Mean Well GST18A12-P1J Power Supply 18W 12V 1.5A

SKU GST18A12-P1J
$17.97 USD
Shipping calculated at checkout.

Select model — 14 in this family

GST18A12-P1J
In stock
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Overview

GST18A12-P1J is the 12V output model of this series: rated current 1.50A, typical efficiency 86%. 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

GST18A12-P1JSpecifications from the official datasheet (2026-04-03 edition)

OUTPUT

SAFETY MODEL NO.
GST18A12
DC VOLTAGENote.2
12V
RATED CURRENT
1.50A
CURRENT RANGE
0 ~ 1.50A
RATED POWER (max.)
18W
RIPPLE & NOISE (max.)Note.3
80mVp-p
VOLTAGE TOLERANCENote.4
±3.0%
LINE REGULATIONNote.5
±1.0%
LOAD REGULATIONNote.6
±3.0%
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.)
86%
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

GST18A12-P1J Derating Curve
Derating Curve
GST18A12-P1J Mechanical Specification
Mechanical Specification
GST18A12-P1J DC output plug
DC output plug

Typical applications

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

Downloads

FAQ

Can I use the GST18A12-P1J for 12V industrial control or automation devices?

This model is a constant-voltage 12V supply rated for 18W with up to 1.5A output current. It fits automation or control devices that specifically call for 12V DC and stay within that 1.5A capacity.

Is the GST18A12-P1J suitable for 12V embedded systems or edge devices?

It can be suitable for embedded or edge devices designed for a regulated 12V input. The load should remain within the supply's 18W and 1.5A limits for proper sizing.

Can this 12V power supply be used for small instrumentation or monitoring equipment?

Yes, it can support small 12V instrumentation or monitoring equipment when the device uses constant-voltage input and does not exceed 1.5A draw. Its rating makes it more appropriate for lower-power 12V loads than for larger 12V systems.

Would the GST18A12-P1J work for 12V IT or communications accessories?

It may work well for compact 12V accessories in IT or communications environments if the required input is 12V DC. The available output is capped at 18W and 1.5A, so the device's power requirement needs to stay within those figures.

Is the GST18A12-P1J suitable for outdoor or unprotected locations?

The listed operating temperature range is -30°C to +70°C, so the product is specified for a wide ambient temperature window. No IP rating is provided in the specs, which means outdoor or exposed-environment suitability is not confirmed here.

Payment & Security

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Mean Well GST18A12-P1J Power Supply 18W 12V 1.5A
Mean Well

Mean Well GST18A12-P1J Power Supply 18W 12V 1.5A

$17.97 USD

GST18A12-P1J is the 12V output model of this series: rated current 1.50A, typical efficiency 86%. 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 12V 2 Pole
  • 18W 12V 3 Pole
  • 25W 12V 2 Pole
  • 25W 12V 3 Pole
  • 36W 12V 2 Pole
  • 40W 12V 3 Pole
  • 60W 12V 3 Pole
  • 80W 12V 3 Pole
  • 102W 12V 3 Pole
  • 138W 12V 3 Pole
  • 180W 12V 3 Pole
  • 252W 12V 3 Pole
  • 330W 12V 8Pin A
  • 330W 12V 8Pin B
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