Dell J302-1203000U 12V 3A 36W power adapter
Delivers 12V 3A 36W regulated power with a self-adapting 5.5mm x 2.1mm barrel connector and built-in safety protections
- Adapter typeUSB C Charger
- Cable length5 in (12.7 cm)
- First connectorBarrel Connector
- Second connectorBarrel Connector
- Cable jacketPlastic
- Connector typeMale
- 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.
How it compares
Measured against everything we stock in AC Adapters & Power Bricks, at today’s prices. Recalculated every night.
- Price $24.99
- Typical for this category: the median of 3,875 items is $23.99.
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Specifications
| Product | |
|---|---|
| Brand name | Dell |
| Product line | J302-1203000U |
| Model name | J302-1203000U |
| Part number | J302-1203000U |
| Product type | 9 V |
| Adapter type | USB C Charger |
| Product color | Black |
| Ports & slots | |
| First connector | Barrel Connector |
| Second connector | Barrel Connector |
| Connector type | Male |
| Size & build | |
| Cable length | 5 in (12.7 cm) |
| Cable jacket | Plastic |
| Product dimensions | 14.33 in W × 12.83 in H × 9.06 in D |
| Product weight | 0.168 kg |
| In the box | |
| Units per package | 1 |
| In the box | 1 |
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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