中文：5521 带卡槽 DC 电源插座 直插 DC 直流充电母座
English: 5521 DC Power Jack With Buckle Slot PCB DC Charging Socket
产品描述（中英双语）
中文：5521 DC 直流电源插座，阻燃塑胶外壳，弹性铜质触点导电稳定，经久耐用。多款针脚结构可选，包含贴片、直插、带开关款式，壳体带定位卡槽，便于 PCB 精准焊接定位。适配 5.52.1mm 公头，广泛应用于小家电、监控设备、LED 灯带、数码设备充电供电接口，符合环保标准，支持批量定制。
English: 5521 DC power socket adopts flame-retardant plastic housing and elastic copper contacts for stable and long-lasting conduction. Multiple terminal types available: SMD, through-hole and switch version. Positioning slot on housing ensures accurate PCB soldering. Compatible with 5.52.1mm DC plug. Widely used for small home appliances, surveillance equipment, LED strips and digital devices. Eco-friendly material, bulk customization supported.
FAQ 中英双语
Q1：适配 DC 插头规格是多少？
A1：适配标准 5.52.1mm DC 公头。
Q1: What DC plug is compatible?
A1: Standard 5.52.1mm DC male plug.
Q2：有哪些安装类型可选？
A2：贴片 SMT、直插 DIP、带开关多种规格可选。
Q2: Mounting types available?
A2: SMD, DIP through-hole and switch types optional.
Q3：壳体卡槽作用是什么？
A3：卡槽用于 PCB 定位，焊接时不易偏移。
Q3: Function of housing slot?
A3: For PCB positioning, prevent shifting during soldering.
Q4：材质是否满足环保要求？
A4：采用环保阻燃原料，符合常规环保标准。
Q4: Is material eco-friendly?
A4: Eco-friendly flame retardant plastic, meet common environmental standards.
Q5：是否可以提供样品测试？
A5：支持试样，大批量订单可协商参数定制。
Q5: Can samples be offered?
A5: Samples available, parameter customization for bulk orders.
