Texas Instruments ULN2003A NPN Darlington Transistor Array IC (SMD Package) 5 dbi GSM Flat Antenna For Landline Phone It comes with a lever

It comes with a lever for locking and unlocking the IC to the base

and extensive GPIO capabilities

AC 100-240V 50/60Hz input

and faster updates in response to external forces

These are Carbon Film Resistor with a value of 75 ohm 1/4W and tolerance of ±5%

Texas Instruments ULN2003A NPN Darlington Transistor Array IC (SMD Package) 5 dbi GSM Flat Antenna For Landline Phone It comes with a leverThe ULN2003A devices are high voltage, high current Darlington transistor arrays. Each consists of seven NPN Darlington pairs that feature high voltage outputs with common cathode clamp diodes for switching inductive loads. The collector current rating of a single Darlington pair is 500 mA. The Darlington pairs can be paralleled for higher current capability. Applications include relay drivers, hammer drivers, lamp drivers, display drivers (LED and