[time-nuts] pick and place problems/design (was: OT stuffing boards)
holrum at hotmail.com
Sat Jun 25 16:41:33 EDT 2016
I do mostly digital stuff and 80% of my resistor usage is 10K, maybe 10% 1K, a couple of other values are 9%, random values make up the remaining 1%.
For caps I use 0.47uF 0805's most of the time and 10uF (can't remember the size). Why 0.47 uF you may ask? Well, I thought I was buying a reel of 3000 pieces for $10. Didn't read the fine print in the auction, which was for 10 reels. Also got 30,000 2N700x transistors tossed in. Other cap sizes I use are 0.01uF and 0.1 uF (geezers HATE nanofarads). Another $20 auction got me 50 sealed 1000 pc reels of various Philips and Osram LEDs. Another $20 auction got me 200+ partial reels of various caps (including tantalums), diodes, resistors, inductors, etc. A little Ebay surfing can land you silly amounts of parts for the cost of a burger and fries. Big lots of partial reels left over from a manufacturing run can be really good deals. The only SMD parts I've had to buy from distribution in ages are IC's.
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