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Black Dell power adapter brick with barrel connector and interchangeable tips

Dell J302-1203000U 12V 3A 36W power adapter

SKU CH-AYW0-9MK68

Delivers 12V 3A 36W regulated power with a self-adapting 5.5mm x 2.1mm barrel connector and built-in safety protections

  • Type9 V
  • Changer TypeUSB C Charger
  • ColorBlack
  • Cable Length5 in.
  • Specifications36 watts, 12 volts_of_direct_current, 3 amps, 100 volts_of_a
  • Connector ABarrel Connector
  • Delivers stable 12 V 3 A 36 W regulated power
  • Auto-adjusts output from 100 mA up to 3 A for many devices
  • Built-in short-circuit, over-current, over-voltage and over-temperature safeguards
  • 3 ft cable gives flexible placement options
  • 11 interchangeable barrel tips fit 5.5 mm × 2.1 mm and 2.5 mm jacks

Dell J302-1203000U 12V 3A Power Adapter

This Dell J302-1203000U is a regulated switching power supply delivering 12V at 3A for a total of 36W. It is intended for electronic equipment that requires a 12V DC input within the 0.1A to 3A range. The unit includes a self-adapting barrel connector and a set of interchangeable DC plugs for broader device compatibility.

Verify device voltage polarity

Confirm that your equipment operates on 12V DC with a positive centre polarity requirement. The adapter barrel jack measures 5.5mm by 2.1mm and accepts a 2.5mm pin, so check the device socket matches. Ensure the hardware draws no more than 3A and is in good working order, as the manufacturer notes older units may need inspection prior to use.

Built-in protections maintain output during

Short-circuit, over-current, over-voltage and over-temperature safeguards protect both the adapter and connected gear under sustained load. The 3.3-foot cable provides flexible placement for continuous use scenarios. The unit accepts a wide 100V to 240V AC input at 50Hz or 60Hz for stable performance across varying mains conditions.

Highlights

  • Delivers stable 12 V 3 A 36 W regulated power
  • Auto-adjusts output from 100 mA up to 3 A for many devices
  • Built-in short-circuit, over-current, over-voltage and over-temperature safeguards
  • 3 ft cable gives flexible placement options
  • 11 interchangeable barrel tips fit 5.5 mm × 2.1 mm and 2.5 mm jacks

Specifications

BrandDell
SeriesJ302-1203000U
ModelJ302-1203000U
Part NumberJ302-1203000U
Type9 V
Changer TypeUSB C Charger
ColorBlack
Cable Length5 in.
Specifications36 watts, 12 volts_of_direct_current, 3 amps, 100 volts_of_alternating_current, Barrel Connector, 50/60 Hz, no_plug, 1, 12V 3A Adapter Power Supply Charger Electronic equipment, J302-1203000U
Connector ABarrel Connector
Connector BBarrel Connector
Cable Jakcet TypePlastic
Connector StyleMale
Features12V 3A Adapter Power Supply Charger Electronic equipment, Barrel Connector, Corded Electric, 1, 36 watts
Dimensions14.33in W x 12.83in H x 9.06in D
Weight0.168 kilograms
Package Quantity1
Package Contents1
Disclaimer18 months, not_applicable

Questions about this item

What comes in the box and which DC plug do I need for a 5.5 mm × 2.1 mm barrel jack?

The package contains one adapter with a fixed 5.5 mm × 2.1 mm barrel connector that is also compatible with 2.5 mm centre-positive jacks; no separate plugs are required.

Should I choose this 36 W model or a lower-wattage version for a device rated at 12 V 2 A?

This 36 W unit delivers up to 3 A and automatically supplies the current your device draws, so it safely powers any 12 V equipment rated from 0.1 A up to 3 A.

What does the 36 W rating mean when the adapter is connected to my 12 V router?

It means the supply can provide a maximum of 3 A at 12 V; your router will only draw the current it needs, and the built-in short-circuit, over-current, over-voltage and over-temperature protections will activate if a fault occurs.

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