NE556 Dual Timer IC Mini Servo The 120E SMD Resistor is

The 120E SMD Resistor is a conventional thick film chip resistor and is a type of surface-mount resistor

Communication Interface

It's a 8 Pin Relimate Female to Female Connector - 2

Time Delay Retrigger: When it receives the second induction signal within the first induction

This is a - SMD Resistor with a resistance of 1k ohm (1K)

NE556 Dual Timer IC Mini Servo The 120E SMD Resistor isIn one IC package, the 556 IC contains two distinct and independent timer circuits. It works in astable or monostable mode, and timing or delay can be modified with an external resistor capacitor combination, just like the 555 timer IC. The NE556 dual monolithic timing circuit is a highly stable controller and capable of producing accurate time delays or oscillations. Features Low Turn off Time Max. Operating Frequency >500kHz Tuning from microseconds