Galak Electronics Logo

all words  any word  exact
Main PageAudio KitsEngineering KitsFun KitsLED kitsTimer KitsKit AccessoriesAssembled KitsSite Help

Programmable Countdown Timer

Programmable Countdown Timer Kit

by Galak Electronics
Part No. VG-302
Shipping Weight: 1.3 ounce (37 grams)

Add control and accuracy to your timing projects with this fully programmable countdown timer. Select between minutes and seconds with delays up to 99 minutes. Comes with dual buttons for easy programming, a blinking seconds indicator, fully debounced trigger input and a 500mA output for inductive and non-inductive loads.

The unassembled kit includes instructions (including schematic and parts placement) and all the components to build one complete Programmable Countdown Timer. A soldering iron, solder and a pair of cutters are required for assembly.

Programmable Countdown Timer Kit:



Programmable Countdown
(Built and Tested):




  • Programmable time delay up to 99 minutes with dual buttons and 7-segment displays.
  • User selectable jumpers for 0-99 minutes, 0-9.9 minutes*, or 0-99 seconds.
  • Fully debounced input can be triggered with pushbutton or other contact closure.
  • Reset jumper for quick countdown zeroing and output triggering.
  • Wide input supply voltage from 6 to 20VDC** and 250mA operational current.
  • Current sinking output allows switching of inductive and non-inductive loads at the input voltage.
      * Jumper included to illuminate left-hand digit decimal place.
      ** Onboard regulation with thermal overload protection limits operating temperature to 150°F (65°C) at maximum input voltage.


  • Supply Voltage: 6VDC to 20VDC @ 250mA (max)
  • Output Rating: Current sinking - 500mA max (inductive and non-inductive loads)
  • Input Connector: Screw terminal - 5 position (Trigger, V-, V+, OUT)
  • Delay Range: 0-99 seconds, 0-9.9 minutes, 0-99 minutes (JP1 and JP2)
  • Board Dimensions: 3.80" x 1.95" (9.65 cm x 4.95 cm)
  • Board Material: 0.062" (1.6 mm) FR-4, with blue solder mask and top layer silk screen
  • Finished Weight: 1.3 ounce (37 grams)

Please feel free to contact us if you have any question about this project or any othe Galak Electronics Projects.

Copyright 2013 by Galak Electronics. All rights reserved.