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howto:electro:smd_beginners
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howto:electro:smd_beginners [2016/10/29 23:05] (aktuální) – vytvořeno - upraveno mimo DokuWiki 127.0.0.1
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 +====== SMD for Beginners ======
  
 +Here is mirrored 1200dpi PCB template for simple SMD 555 led flasher ready for toner transfer:
 +{{:howto:electro:smd_led_flasher_pcb.png?direct&200|}}
 +
 +I was mostly using 1206 footprints as most parts will fit this size and it's still posible to comfortably route between legs. 0805 is also quite universal if you design PCB.
 +For capacitors i've used "C 6032" footprint just because i've had some slightly bigger caps at the hand, but it can also take much smaller capacitors, when populated by hand.
 +
 +Circuit is quite simple and it's meant just for learning of SMD soldering. It's basic 555 astable multivibrator with led and current limiting resistor:
 +{{:howto:electro:smd_led_flasher_schem.png?direct|}}
 +
 +http://www.ohmslawcalculator.com/555_astable.php
 +
 +{{ :howto:electro:smd-blinker1.jpg }}
 +{{ :howto:electro:smd-blinker2.jpg }}
 +{{ :howto:electro:so8-dip-adapter.jpg }}
 +{{ :howto:electro:so8-dip-adapter-555.jpg }}
howto/electro/smd_beginners.txt · Poslední úprava: 2016/10/29 23:05 autor: 127.0.0.1