17mm Laser contact board
author: Cereal_Killer
2 layer board of 0.70 x 0.70 inches (17.9 x 17.9 mm)
Uploaded:
November 20, 2014
Shared:
November 20, 2014
Total Price:
$2.45
Safety feature- cell inserted + end forward (like a flashlight) will reverse bias the diode and not allow current to flow. This uses the body as the + contact and the spring at the head is GND.
- D1 is a Diode’s Inc PDS1040, rated 10A with a 490mv drop.
Be especially cautious to prevent shorts to +!
I made this as an additional safety feature- if my wife / kid’s pick up a laser not paying attention and stick a cell in like they would a flashlight nothing will happen.
Safety feature- cell inserted + end forward (like a flashlight) will reverse bias the diode and not allow current to flow. This uses the body as the + contact and the spring at the head is GND.
- D1 is a Diode’s Inc PDS1040, rated 10A with a 490mv drop.
Be especially cautious to prevent shorts to +!
I made this as an additional safety feature- if my wife / kid’s pick up a laser not paying attention and stick a cell in like they would a flashlight nothing will happen.
