摘要： 下面是 [水泵继电器控制电路]的 　　材料BOM表：R1 = 15K - 1/4W Resistors R2 = 15K - 1/4W Resistors R3 = 10K - 1/4W Resistor R4 = 1K - 1/4W Resistor D1 = LED - any type and color D2 = 1N4148 - 75V 150mA Diode Q1 = BC337 - 45V 800mA NPN Transistor IC1 = 4001 Quad 2 Input NOR Gate CMos IC SW = SPDT Toggle or Slide Switch (Optional) RL1 = Relay with SPDT 2A @ 230V switch Coil Voltage 12V - Coil res