Small Aluminium Heat Sink for TO-220 Package XL6009 5V voltage drop and a

5V voltage drop and a 3A forward current

It's a Flame sensor Module

which are Blue

CMOS type: 4000

Its purpose is to transmit heat from the CPU to the heat sink

Small Aluminium Heat Sink for TO-220 Package XL6009 5V voltage drop and aThis small Aluminium Heat Sink is perfect for TO 220 Package. This heat sink is generally used for low power dissipations. The heat sink has a hole to screw any transistor or voltage regulator. A heat sink is a passive heat exchanger that transmits heat from an electrical or mechanical device to a fluid medium, typically air or a liquid coolant, where it is dissipated away from the device, allowing to regulate the temperature of components. Heat sinks