5.5×2.1 DC Power Jack SMD 4Pin DC pcb connector
The DC-050 is a DC power jack SMD connector with a 4‑pin right‑angle surface‑mount footprint, designed for automated SMT assembly. This SMD DC power jack accepts standard 5.5×2.1mm DC barrel plugs, features gold‑plated contacts for stable electrical performance, and is rated for 5,000 mating cycles. RoHS & REACH compliant. Tape & Reel packaging. MOQ 1,000 pcs. Free sample for qualified projects.
SMD DC Power Jack Overview
An DC power jack SMD is a surface‑mount power receptacle that allows external DC adapters to connect directly to a printed circuit board. This 4 pin DC power jack features a right‑angle design, keeping the connector profile low and parallel to the board for slim enclosure applications. The four‑pin configuration includes a central power pin, outer shell ground, and an insertion‑detection switch that opens when a plug is inserted—providing automatic battery disconnect or external power sensing without extra components. This PCB mount DC jack is fully compatible with lead‑free reflow soldering, making it an efficient choice for high‑volume SMT production lines.
Compared to through‑hole versions, a surface mount DC jack reduces assembly cost and board area while maintaining robust electrical contact. The gold‑plated contacts ensure low contact resistance and excellent corrosion resistance, even after thousands of insertions. Whether you are designing a wireless router, a POS terminal, or an industrial controller, this DC power jack SMD delivers the reliability and space savings modern electronics demand.
Technical Specifications of the SMD DC Power Jack
| Item | Value |
|---|---|
| Part Number | DC-050 |
| Connector Type | DC Power Jack |
| Mounting | Surface Mount (SMT), Right Angle |
| Pins | 4 |
| Contact Type | Female |
| Barrel Size | 5.5×2.1mm (standard) |
| Rated Voltage | 30V DC |
| Rated Current | 0.5A |
| Contact Plating | Gold Plated |
| Mating Life | 5,000 Cycles |
| Operating Temperature | −25°C to +85°C |
| Compliance | RoHS & REACH |
Key Features of the 4 Pin DC Power Jack
Compact SMT Footprint
Right‑angle surface‑mount design minimises PCB space and simplifies automated pick‑and‑place assembly.
Stable Electrical Connection
Gold‑plated contacts maintain low contact resistance across 5,000 mating cycles for reliable power delivery.
Reliable PCB Retention
Four‑pin SMT pad layout provides strong mechanical anchoring against cable insertion and extraction forces.
Long Service Life
Designed for up to 5,000 insertions, ensuring years of dependable performance in frequently used ports.
Insertion Detection Switch
Built‑in normally‑closed switch opens on plug insertion, enabling battery disconnect or external power sensing.
OEM & ODM Available
Custom barrel sizes, plating options, and packaging available for volume orders.
Applications of SMD DC Power Jacks
Why Choose Vistar Electronics
- 15+ Years Manufacturing – trusted supplier of electromechanical connectors for global OEMs.
- OEM & ODM – custom barrel sizes, plating, and packaging to meet your exact design needs.
- ISO 9001 Quality Control – consistent product quality backed by rigorous testing.
- Engineering Support – CAD models, footprint libraries, and application notes provided.
- Free Samples – prototype samples shipped within days for evaluation.
- Worldwide Shipping – flexible logistics options to keep your production on schedule.
Frequently Asked Questions – SMD DC Power Jack
What is an SMD DC power jack?
An SMD DC power jack is a surface‑mount connector that accepts a DC barrel plug to provide power to a PCB. The DC-050 is a 4‑pin right‑angle version with gold‑plated contacts.
What is the difference between SMT and through‑hole DC jacks?
SMT DC jacks solder directly to the PCB surface and support automated assembly, while through‑hole jacks require drilled holes and are often manually soldered. SMT saves board space and assembly cost.
What barrel sizes are available?
The DC-050 accepts standard 5.5×2.1mm plugs. Custom sizes such as 5.5×2.5mm can be developed for OEM projects.
What is the function of the fourth pin?
The extra pin acts as an insertion‑detection switch. It is normally closed and opens when a plug is inserted, useful for battery disconnect or power‑sensing circuits.
Can this connector support custom plating?
Yes. The standard is gold plating, but custom plating options are available for volume orders.
Do you provide OEM manufacturing?
Yes. Vistar offers full OEM and ODM services including custom barrel sizes, plating, and packaging.
Sourcing a Reliable SMD DC Power Jack for Your PCB Design
SMD DC power jacks are widely used in modern electronic devices where compact PCB layouts and automated SMT assembly are required. Compared with through‑hole connectors, a surface mount DC jack helps reduce assembly costs while maintaining reliable power input performance. This 4 pin DC power jack provides a complete power entry solution with its integrated switch and gold‑plated contacts, ensuring stable operation over thousands of mating cycles. As a PCB mount DC jack, it fits seamlessly into reflow profiles and works with standard pick‑and‑place equipment, streamlining high‑volume manufacturing.
Vistar Electronics manufactures a complete range of DC power jack SMD connectors with multiple barrel sizes, contact plating options, and customized designs for industrial, consumer, and communication equipment. All products comply with RoHS and REACH standards and support OEM/ODM projects for global customers. Explore our DC power connector portfolio: DC Power Connector Category, 3 Pin DC Jack, Right Angle DC Jack, Panel Mount DC Jack, Vertical DC Jack, and Waterproof DC Jack. For technical guidance, see our articles on Barrel Jack Connector Selection and Usage Guidelines, Best DC Barrel Jack Connectors, and A Comprehensive Overview of Barrel Connector Manufacturer. For industry standards, refer to IEC Standards. To request a free sample of the DC-050 or discuss your requirements, contact sales@vistarelectronics.com.
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