Shielded SMT DC Power Jack

A shielded surface-mount (SMT) DC power jack is a specialized connector designed for low-voltage DC power input in compact and modern electronics. It combines the advantages of surface-mount technology (which is ideal for automated PCB assembly) with electromagnetic shielding, which enhances performance in environments where signal integrity and noise suppression are critical.

This type of power jack features:

• A surface-mount footprint, allowing it to be soldered directly onto the surface of a PCB without through-holes

• An integrated metal shield around the body of the connector, which connects to ground and helps block EMI/RFI (electromagnetic and radio frequency interference)

• A barrel-style design, typically with 5.5mm outer diameter and 2.1mm or 2.5mm inner diameter, compatible with standard DC plugs

It is commonly used in small and lightweight devices where space, performance, and automated assembly are key requirements.

Key Features

• Surface Mount (SMT) Form Factor
  Ideal for automated pick-and-place assembly and compact board layouts. SMT jacks reduce drilling costs and save space on multilayer PCBs.

• EMI Shielding
  The metal shell acts as a Faraday cage, preventing external electromagnetic interference from entering the circuit and reducing emissions from the power line.

• Secure Power Delivery
  Standardized barrel size ensures compatibility with widely used power supplies, while the shielded construction improves grounding and power stability.

• Low Profile
  Shielded SMT DC jacks are typically low in height, making them suitable for slim, handheld, or embedded applications.

• Durable Contacts
  Gold or nickel-plated contacts ensure long-lasting electrical connectivity, even with repeated mating cycles.

Shielded 5A PCB Mount DC Power Jacks are ideal for various applications where space is at a premium and EMI/RFI protection is critical. These include:

• Portable Electronics: Smartphones, tablets, laptops, and other portable devices often utilize SMT components to minimize size and weight. Shielding is crucial for preventing interference from wireless signals and other electronic devices.

• Medical Devices: The high sensitivity of medical equipment necessitates robust EMI/RFI protection, making shielded SMT jacks a preferred choice.

• Audio/Video Equipment: High-fidelity audio and video equipment requires clean power delivery to avoid noise and interference.

• Industrial Control Systems: Industrial environments often have high levels of electromagnetic noise, making shielded connectors essential for reliable operation.

• Automotive Electronics: The complex electrical environment in vehicles necessitates robust EMI/RFI protection for sensitive electronic systems.

• They are particularly useful where both compact design and clean power input are required.

The shielded SMT DC Power Jack Socket is a smart, space-saving solution for delivering reliable DC power to sensitive electronic devices. It supports high-efficiency PCB assembly while protecting circuits from noise and interference. Whether you're designing next-generation IoT hardware or a high-precision audio system, this component ensures power delivery that is both efficient and interference-free.