中文：PJ-392A PJ-391 3.5mm 面板音频插座 带螺母螺纹立体声耳机母座
English: PJ-392A PJ-391 3.5mm Panel Mount Audio Jack, Threaded Stereo Headphone Socket With Nut
产品描述（中英双语）
中文
PJ-391/PJ-392A 3.5mm 立体声音频插座，自带外螺纹与锁紧螺母，支持机箱面板开孔安装。内孔镀金，导电性能稳定，有效降低音频信号损耗。提供三脚、四脚多种端子规格可选，阻燃塑胶主体，适配 3.5mm 立体声音频插头。广泛用于音响设备、仪器仪表、功放、台式影音机箱，多规格现货，支持样品测试与批量定制。
English
PJ-391 / PJ-392A 3.5mm stereo audio jack with external thread and lock nut for panel mounting. Gold-plated inner hole ensures stable conductivity and reduces audio signal loss. 3-pin and 4-pin terminals optional, flame retardant plastic body, compatible with standard 3.5mm stereo plugs. Widely used for audio amplifiers, testing instruments, speaker equipment and desktop audio chassis. Multiple versions in stock, samples and bulk customization available.
FAQ 中英双语
Q1：型号包含 PJ-391 与 PJ-392A 两种吗？
A1：两款均有现货，脚位与安装尺寸有差异，下单可区分选型。
Q1: Are PJ-391 and PJ-392A both available?
A1: Both models are in stock with different pin layout and mounting size, please select correctly.
Q2：配套锁紧螺母一起出货吗？
A2：常规出厂标配金属锁紧螺母，便于面板固定安装。
Q2: Does it come with lock nut?
A2: Standard equipped with metal lock nut for panel installation.
Q3：有三脚、四脚不同端子版本可选？
A3：支持 3 脚、4 脚立体声规格，满足不同 PCB 接线方案。
Q3: Are 3-pin and 4-pin versions available?
A3: 3-pin & 4-pin stereo types are optional for various PCB wiring.
Q4：适合哪些设备使用？
A4：功放音箱、测试仪器、调音设备、机箱影音产品。
Q4: What equipment is suitable?
A4: Amplifiers, speakers, testing instruments, mixers and chassis audio devices.
Q5：可以免费申领样品测试吗？
A5：支持样品申请，大批量订单交期稳定可控。
Q5: Can I get samples for testing?
A5: Sample application supported, stable lead time for bulk orders.
