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Tagged with pcb-assembly led
3
questions
2
votes
1
answer
135
views
Production quality issue?
I had 5 two-layer boards fabricated by a popular assembly house in China and I'm curious what folks thoughts are based on what I received.
Here is a photo of the 5 boards which has a red square around ...
1
vote
2
answers
578
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0805 package SMT pads minimum clearance and tombstoning
The picture shows 0805 LEDs and one last 0805 resistor connected to the GND pour.
What is the minimum clearance between the SMT pads of the different 0805 LEDs that I should consider safe for ...
21
votes
3
answers
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What are the 'knuckles' on through-hole LEDs and photodiodes for?
I am using an IR LED and a photo diode, and I have designed the PCB according to the specifications that I found on the datasheet - i.e. hole sizes for the pins being 0.6 mm. However, on these ...