5mm 微型金属自复位按钮开关 DS402 常开点动开关
5mm Mini Metal Momentary Push Button Switch DS402 Normally Open
2. 产品描述（中英）
中文：DS402 微型金属按钮开关，直径 5mm 圆形款式，红色按键，自复位常开点动结构。螺纹面板安装，金属外壳坚固耐用，两直插引脚便于焊接，适用于仪器仪表、小型设备触发控制，电气性能稳定。
English: DS402 mini metal push button switch, 5mm round type with red cap, momentary normally open design. Threaded panel mounting, sturdy metal housing. Two straight pins for easy soldering, widely used for trigger control of instruments and small equipment with stable performance.
3.FAQ 中英双语
Q1：开关工作模式是什么？
A1：自复位点动，按下导通，松开断开。
Q1: What is the switch operation mode?
A1: Momentary type, switch on when pressed and off when released.
Q2：按键头部是什么颜色？
A2：标准款为红色塑胶按钮头。
Q2: What color is the button cap?
A2: Standard version comes with red plastic cap.
Q3：安装方式是哪种？
A3：螺纹螺母固定，面板开孔安装。
Q3: What is the mounting method?
A3: Thread nut fixing for panel cutout mounting.
Q4：引脚形式是怎样的？
A4：直插两脚引脚，适合 PCB 焊接。
Q4: What is the pin type?
A4: Two straight through-hole pins for PCB soldering.
Q5：常规交期多久？
A5：现货 3-5 天，定制订单 7-12 天。
Q5: What is the normal lead time?
A5: Stock items:3-5 days, customized orders:7-12 days.
