# PJ-320A (Component) ## Description The PJ-320A is a panel-mount or PCB-mount DC barrel power jack connector designed for low-voltage DC power input applications in embedded and consumer electronic systems. This connector provides a reliable interface for external DC power adapters and is commonly used in development boards, communication devices, industrial electronics, portable equipment, and power distribution modules. The connector is engineered for stable mechanical retention and consistent electrical contact performance during repeated insertion and removal cycles. Its compact construction and standardized barrel interface support broad compatibility with common DC plug adapters used in low-voltage electronic systems. The PJ-320A is widely implemented in embedded hardware, battery charging systems, portable electronics, instrumentation equipment, and microcontroller-based applications requiring secure external power connectivity. Its durable housing and solderable terminal structure support reliable PCB integration and automated assembly processes. Engineering Specification Device Type DC barrel power jack connector Connector Function External DC power input interface Mounting Style PCB mount or panel mount depending on implementation Connector Configuration Coaxial barrel-style power connector Electrical Characteristics Designed for low-voltage DC power transmission Contact Structure Spring-contact conductive interface for stable plug retention Mechanical Features Durable insertion and extraction cycle performance Housing Material Insulated high-strength connector body Terminal Configuration Solderable PCB terminal interface Reliability Features Stable contact resistance and secure mechanical retention Assembly Compatibility Suitable for automated and manual PCB assembly processes Package Structure Compact embedded connector form factor Applications Embedded systems Portable electronics Power adapter interfaces Microcontroller development boards Battery charging systems Industrial electronics Consumer devices Communication equipment Instrumentation systems Low-voltage DC power distribution Manufacturer Commonly associated with generic DC power connector manufacturers #commonpartslibrary #dcjack #powerconnector #barreljack #embeddedhardware #electronicsdesign #powerelectronics #pcbconnectors #consumerelectronics #surfacemountcomponents #throughholecomponents #powerinput #industrialelectronics #microcontroller #electromechanical ## Component Details - **Owner:** lcsc - **Created:** 11/3/2024 - **Last Updated:** 5/28/2026 - **Visibility:** Public - **Datasheet URL:** https://www.lcsc.com/datasheet/C2884926.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=QlUIU1dSRgJcA1FQQVUMBgdeElQIVldRQ1daVQdeQAcxVlNRTlhWX1RWRlRfUDsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - **Manufacturer Part Number:** PJ-320A - **Part Type:** Audio Connectors - **Manufacturer Name:** XKB Connectivity(中国星坤) - **Package or Case Code:** AUDIO-TH_XKB_PJ-320A - **LCSC Part Number:** C2884926 - **JLCPCB Part Class:** Extended Part - **Used in:** 77 projects - **Stars:** 1 ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [HQonline](https://www.hqonline.com/product-detail/audio-and-video-connectors-xkb-pj-320a-2500364420) | $0.09879 | 3.2K | | [LCSC](https://www.lcsc.com/product-detail/C22355837.html) | $0.0688 | 849 | - **Part Type:** Connectors - **Sub-Type:** Audio / Video Connectors - **MPN:** PJ-320A - **Mount Type:** Axial - **Package / Case Code:** Other - **Pin Count:** 4 ## Pins | Pin | Name | Type | |-----|------|------| | 2 | 2 | | | 3 | 3 | | | 4 | 4 | | | 5 | 5 | | --- *Generated from [https://www.flux.ai/lcsc/pj-320a~nr7](https://www.flux.ai/lcsc/pj-320a~nr7)*