Heh... yeah. It's a moving target. Depends on the sort of company you keep.

Seems like daily playing semantic games and correcting engineers and designers who have started casually referring to 130um pitch boards as fine pitch.

The human animal seems to have a natural capacity for adapting to life on the edge -- like that old picture of  steelworkers breaking for lunch high above Manhattan, casually sitting on a beam during the construction of 30 Rock.

-----Original Message-----
From: TechNet <[log in to unmask]> On Behalf Of Stadem, Richard D
Sent: Thursday, September 6, 2018 8:14 AM
To: [log in to unmask]
Subject: [EXTERNAL] Re: [TN] PTH Fine-Pitch Definition

I believe the loose definition (today) is anything .020" or less is considered fine pitch. What is considered "standard" pitch is .050". 
But next month, it could be anything less than .010". 
In 2019, there is a conspiracy underfoot to make it anything less than .005"!
Just kidding, but it is not defined anywhere, to my knowledge.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ron Feyereisen
Sent: Thursday, September 06, 2018 9:29 AM
To: [log in to unmask]
Subject: [TN] PTH Fine-Pitch Definition

Hi everyone,

Is there an established definition for what would be considered a PTH fine-pitch component?

Is any pitch of 1.27mm or less considered to be the definition?

Thoughts?

Thanks,
Ron