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These are Metal Film Resistor with a value of 18 ohm 2W and tolerance of ±5%
hence no short circuit is possible
electric posters
Material Copper Wire Type Multistrand Flexible Cable Conductors 7 Single Wire Gauge(mm) 0
12V 4 Channel Relay Module with Optocoupler 3.6V These are Metal Film Resistor12V 4 Channel Relay module is able to control various appliances and other equipment with a large current. It can be controlled directly by a Micro controller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic). Features LED Status indicator High quality screw terminals Mounting Holes Freewheeling Diode to protect your microcontroller Optocoupler to isolate the microcontroller Specification Operating Voltage 12V DC Channel 4 Switching Capacity
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