DC Power Adapter Barrel Jack - Connector
Arduino DC Power Jack 2.1mm Barrel-Type PCB Mount
This is a standard barrel-type DC power jack for PCB mounting. It features a 5mm outer diameter with a 2.1mm center pole. Rated at 0.5A and 30V, it works with common DC wall adapters. Three pins ensure stable soldering and mechanical strength. RoHS compliant.
هذا مقبس طاقة DC أسطواني قياسي للتثبيت على PCB. يتميز بقطر خارجي 5mm وقطب مركزي 2.1mm. مصنف عند 0.5A و 30V، ويعمل مع محولات DC الشائعة. ثلاثة دبابيس تضمن لحاماً ثابتاً وقوة ميكانيكية. متوافق مع RoHS.
The DC Power Adapter Barrel Jack is a standard 3-pin PCB-mount power connector designed to accept common DC wall adapter plugs with a 2.1mm center pin and 5mm outer sleeve. It is widely used in electronic projects, prototypes, and commercial devices as the primary DC input connector. The connector has a center pole diameter of 2.1mm, which is the most common size for low-voltage power supplies. Three pins provide secure mechanical anchoring to the PCB and reliable electrical connections: typically the center pin for positive, outer sleeve for ground, and a third pin for switch detection or additional ground. The housing is made of PA66 ABS material, offering good heat resistance and insulation. With an insulation resistance of 100M Ohms and an operating temperature range of -20°C to +70°C, this jack is suitable for indoor and industrial applications.
Specifications
| Parameter | Value |
|---|---|
| Number of Pins | 3 |
| Mounting Style | PCB (through-hole) |
| Connector Type | Barrel-type DC jack |
| Outer Diameter | 5mm |
| Center Pole Diameter | 2.1mm |
| Current Rating | 0.5A |
| Voltage Rating | 30V |
| Operating Temperature Range | -20°C to +70°C |
| Insulation Resistance | 100M Ohms (minimum) |
| Material | PA66 ABS |
| Color | Black |
| RoHS Compliant | Yes |
Applications
Power input connector for Arduino, Raspberry Pi, and other development boards
DIY electronics projects requiring external DC wall adapter
Battery-powered devices with external charging input
Audio equipment, routers, and small appliances
Prototype PCBs for bench power supply inputs
Replacement or repair of damaged DC jacks on consumer electronics