Name: MEAN WELL SGA18U series: Slim US-plug AC/DC wall adaptor - SGA18U12-P1J
Brand: MEAN WELL
SKU: SGA18U12-P1J
Price: 51.04 USD
Availability: InStock

MEAN WELL SGA18U series: Slim US-plug AC/DC wall adaptor - SGA18U12-P1J

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Description

SGA18U12-P1J — Slim US-plug AC/DC wall adaptor

SGA18U12-P1J is a MEAN WELL SGA18U single-output AC/DC wall adaptor with a 12 V DC output, 1.5 A rated current and 18 W maximum catalog power. Its ultra-slim, fully enclosed plastic housing has a two-pole US mains plug and a center-positive P1J DC connector. The universal 90–264 V AC input, Class II construction without FG, Level VI efficiency and low standby consumption suit consumer electronics, telecommunications, office facilities and industrial equipment. Apply the temperature and load limits below.

Download MEAN WELL SGA18U Datasheet (PDF)
Download MEAN WELL Adaptor Installation Manual (PDF)
Download MEAN WELL DC Plug Selection Guide (PDF)
Download MEAN WELL EMI Testing Guidance (PDF)

SGA18U specifications and installation drawings: main PDF pages 1–3.

Model and electrical specifications

Model and configuration	SGA18U12-P1J; SGA18U series. Single output; two-pole US AC plug; standard P1J DC plug. Safety model number SGA18U12. The selected catalog revision is 2016-07-14.
Rated output	12 V DC; 1.5 A rated current; 18 W maximum rated power as printed. Current range 0–1.5 A.
Universal AC input	90–264 V AC; 47–63 Hz.
AC input current	0.45 A at 115 V AC; 0.2 A at 230 V AC.
Typical efficiency	84% for this model under the stated measurement conditions. The series description gives efficiency up to 86%, not a guaranteed value for every output.
Standby consumption and energy efficiency	No-load power consumption <0.075 W; Energy Efficiency Level VI. The selected catalog states compliance with EISA 2007 / DoE.
Ripple and noise	80 mVp-p maximum. Measurement bandwidth 20 MHz, using a 12-inch twisted pair terminated with 0.1 µF and 47 µF capacitors.
Voltage tolerance	±3.0%, including set-up tolerance, line regulation and load regulation. DC voltage is measured at the plug terminal at 50% load.
Line and load regulation	Line regulation ±1.0%, measured from low to high input at rated load. Load regulation ±3.0%, measured from 10% to 100% rated load.
Setup, rise and hold-up time	300 ms setup, 30 ms rise and 16 ms hold-up at both 115 V AC and 230 V AC, at full load.
Inrush current	Maximum inrush: 30 A at 115 V AC; 45 A at 230 V AC.
Leakage current	0.25 mA maximum at 240 V AC.
Measurement conditions	Unless separately stated, parameters use 115 V AC input, rated load, 25°C ambient and 70% RH.

Protection, environment and load limits

Protection functions	Short-circuit, overload and overvoltage protection are listed. The detailed overload and overvoltage responses below are different.
Overload protection	120–180% of rated output power; hiccup mode, recovering automatically after the fault is removed.
Overvoltage protection	110–140% of rated output voltage; clamping by zener diode with output short, as described in the protection table.
Working environment	−20°C to +60°C with the specified load derating; 20–90% RH, non-condensing.
Ambient-temperature derating	The graph shows 100% load from −20°C through +40°C, reducing to 50% at +60°C. Follow the plotted curve above +40°C. The operating range does not imply full load at every temperature.
Input-voltage load curve	The static-characteristics graph shows 100% load across 90–264 V AC; temperature derating still applies. Note 7 separately cautions that low input may require derating and directs the user to this graph.
Storage environment	−20°C to +85°C; 10–95% RH.
Temperature coefficient	±0.03%/°C over 0°C to +40°C.
Vibration	10–500 Hz, 2 G, 10 minutes per cycle; 60 minutes each along X, Y and Z axes.

Safety and electromagnetic compatibility

Power-unit construction	Class II power unit without FG; fully enclosed 94V-0 flame-retardant plastic case. The series passes LPS. Compact, ultra-slim construction is convenient to carry.
Safety standards	UL60950-1 and CSA C22.2 approved, as listed in the selected 2016-07-14 catalog.
Certification-mark scope	The selected feature page shows cULus, CB, FCC and Level VI marks. These marks are stated for this source revision; verify the supplied unit and destination requirements.
Withstand voltage	Input–output: 4242 V DC.
Isolation resistance	Input–output: 100 MΩ at 500 V DC, 25°C and 70% RH.
EMC emission	Compliance with FCC Part 15 / CISPR22 Class B.

Mechanical dimensions and DC connections

Dimensions	75.5 × 32 × 47.5 mm (L × W × H). Use the mechanical drawing for the mains-pin and output-cable arrangement.
Mains connection	Integrated two-pole US plug; Class II, no FG. This wall adaptor does not use a separate three-core AC power cord.
DC output cable	UL2468 18 AWG; 1000 mm +150/−0 mm in the selected main mechanical drawing.
Standard P1J plug	Tuning-fork connector; 2.1 mm inside diameter × 5.5 mm outside diameter × 11 mm length. The mechanical drawing gives length 11 ±0.5 mm. Center / inside is positive; outside is negative.
Factory connector options	Other plug and cable types are available by customer request. This listing retains the complete P1J ordering code and its specified center-positive connector.

Applications, service life and packing

Typical applications	Consumer electronic devices, telecommunication devices, office facilities and industrial equipment; match the equipment voltage, polarity, connector, current and power requirements.
Power-on indication	The selected U-series feature page lists an LED power-on indicator.
Specified service life	3 years at 100% load, 40°C and 8 hours of operation per day, as stated in the LIFE table. This operating-life condition is separate from the warranty statement.
Reliability	MTBF: 450 K hours minimum, MIL-HDBK-217F at 25°C.
Manufacturer warranty	MEAN WELL states a 3-year manufacturer warranty.
Unit weight and packing	150 g per unit as the catalog PACKING reference; 60 units / 10 kg per carton. The per-unit packing figure is not a separately measured net weight.

Installation and system verification

Connection and load checks	Disconnect the adaptor from AC power before attaching its DC plug. Confirm that the equipment voltage, current, polarity and connector match; never force an incompatible plug. Make secure connections, protect the cable from crushing or being stepped on, and do not exceed the selected current or power ratings. The manual’s three-core detachable AC-cord recommendation does not add an AC cord or FG connection to this two-pin Class II wall adaptor.
Ventilation and placement	Keep the adaptor well ventilated and provide 10–15 cm clearance when an adjacent device is a heat source. Use a stable installation that avoids drops. Keep it away from water, high moisture, fire and excessive ambient heat; protect openings from foreign objects and dripping liquids. Follow the selected temperature derating, not merely the maximum operating temperature.
Servicing, cleaning and long-term disconnection	Fault examination is for a qualified technician; do not open the adaptor case yourself. Disconnect from AC before cleaning and use only a damp cloth, without liquid or aerosol cleaner. Disconnect the equipment from its supply during long periods of non-use. Use a qualified local recycler for disposal.
Separate DC plug converters	The changeable-plug guide explicitly includes SGA12–60 adaptors with standard P1J connectors. Compatible quick converters offer an alternative connector without cutting the original cable. They are separate accessories and do not change the selected output voltage, current, power or polarity requirements. Confirm the exact converter and equipment compatibility. Factory-requested cable/plug configurations in the main drawings are distinct from separately fitted converters; this listing remains P1J.
Installation-manual energy declaration	The manual’s SGA18 energy-efficiency declaration uses 230 V AC, 50 Hz: average active efficiency >85.0%; efficiency at 10% load >78.5% typical; no-load consumption <0.10 W. Its declared output is 18 W for this voltage. These energy-declaration figures have their own test context and do not replace the selected catalog’s model-specific typical efficiency, <0.075 W no-load limit.
FCC operating conditions	The adaptor manual states that FCC Part 15 operation is subject to both conditions: the device must not cause harmful interference and must accept received interference, including interference that may cause undesired operation. Retain the selected U-model FCC Class B reference.
Complete-system EMC verification	The main datasheet describes this adaptor as an independent unit and requires the finished equipment’s EMC compliance to be re-confirmed. Evaluate the intended equipment with representative load, wiring and assembly. The linked guidance expressly includes external adaptors in end-user EMC scope; it does not exempt this adaptor as an enclosed component supply. Its metal-plate laboratory example is not a wall-adaptor mounting instruction.