描述：Dialight 551-xx07 Quad Series LED CBI® Circuit Board Indicators The 551-xx07 quad series, from Dialight, are quad block LED CBI® circuit board indicators. They contain four 3mm through-hole LEDs. The 551-xx07 quad offer high centrelines of 4.32mm. A black plastic housing provides the 551-xx07 quad series with a high contrast. The 551-xx07 quad includes high efficiency, integral resistor, low current and bi-colour LED options. Features of the 551-xx07 Quad PCB LED indicators: Quad block 4 x 3mm (T-1) LEDs Variety of colours Through-hole mounting Black plastic housing Standoffs ### 印刷电路板 LED 指示灯，Dialight
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