SMD component soldering board DIY with LEDs
  • SMD component soldering board DIY with LEDs
  • SMD component soldering board DIY with LEDs
  • SMD component soldering board DIY with LEDs
  • SMD component soldering board DIY with LEDs
  • SMD component soldering board DIY with LEDs
  • SMD component soldering board DIY with LEDs
  • SMD component soldering board DIY with LEDs
  • SMD component soldering board DIY with LEDs

SMD component soldering board DIY with LEDs

K0301

With this board you can practice soldering SMD components and at the same time build an advanced functional circuit. 

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With this board you can practice soldering SMD components and at the same time build an advanced functional circuit. There is a 555 whose frequency is set by long chains of capacitors and resistors. Johnson CD4017 counter to drive 10 LEDs.

These 10 LEDs are driven by BJTs with high hFE and diodes in the base circuit, so any surface contamination from the flux would not allow them to turn off the LEDs.

Model: HKT002 

Product for sale with KIT

Package includes:

Parameter Number Quantity Parameter Number Quantity
100-510Ω/0805 R1-R50 50 0603 resistance PR1-5 5
4.7-10KΩ/0805 R51-R60 10 NE555 U1 1
10-20KΩ/0603 R61-R70 10 CD4017 U2 1
0.1uF/0805 C1-C10 10 Circuit board 1
1N4148/1206 D1-D10 10 Manual Chinese only 1
S8050/SOT-23 Q1-Q10 10 0402 10
LED/0805 L1-L10 10 QFP44 IC 2

Tutorial

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