Power adapter MEAN WELL GST40A18-P1J 40 W, input 90–264 V, output 18 V, RoHS, 50×125 mm, 280 g

MEAN WELL GST40A18-P1J is a 40 W AC-DC desktop power adapter with a wide input range of 90–264 V AC and a fixed 18 V DC output at up to 2.22 A. The adapter uses a 3-pole IEC320-C14 AC inlet and has compact dimensions (50 × 125 mm) with a weight of 280 g, making it suitable for desktop placement or integration into equipment that requires an external brick-style power supply.

Advantages

The GST40A18-P1J offers a broad mains input range for worldwide use, a stable 18 V DC output rated at 2.22 A, and compact size for space-constrained setups. It is RoHS certified and designed for reliable continuous operation in consumer and light-industrial applications.

Suitable for

• Powering routers and network equipment
• Small appliances and electronic devices requiring 18 V DC
• LED drivers and lighting control modules
• Embedded systems and desktop equipment with external adapters

Key specifications

• Manufacturer: MEAN WELL
• Model (MPN): GST40A18-P1J
• Output: 18 V DC, 2.22 A (40 W)
• Input: 90–264 V AC
• AC inlet: 3-pole IEC320-C14
• Dimensions: 50 × 125 mm
• Weight: 280 g
• Compliance: RoHS
• EAN: 4021087028523

How to use

Connect the adapter to a suitable AC mains source via the IEC320-C14 inlet, then plug the DC output into the device requiring 18 V. Verify polarity and connector fit before powering the target device. Ensure the connected device’s current draw does not exceed 2.22 A to avoid overload.

Recommendations

Use the adapter in a well-ventilated location, avoid covering it during operation, and keep it away from moisture and excessive heat. For continuous or critical applications, allow headroom between device current draw and the adapter’s 2.22 A rating. Follow local electrical codes when installing.