Yes, I agree with Mr. Kondner. The only other problem I have with them is that MELF glass diodes are notorious for cracking issues. Look at them cross-eyed and they crack.



-----Original Message-----

From: TechNet [mailto:[log in to unmask]] On Behalf Of rkondner

Sent: Monday, December 04, 2017 11:25 AM

To: [log in to unmask]

Subject: Re: [TN] MELF land shapes



Yes, I still use MELFs. Regular and mini MELF.



They are round and they can roll but place a Coke Bottle on wet sand, give it a slight push down and it does not roll.



I think the biggest problem with MELFs is spinning them to the correct rotation when using a flat steel Pick and Place tip. If you use a tip with the rounded end then no problem.



And I have always used rectangular pads with no problem. I like MELFs as they solder well and tend to be very easy to inspect.



Bob K.





On 12/4/2017 11:55 AM, Jack Olson wrote:

> I am using MELF components on my current design, which I haven't seen 

> much this century.

> But I remember way back when we used "U-shaped" land shapes.

>

> I notice the current Land Pattern standard (IPC-7351) recommends 

> rectangular, but at least one person has suggested using U-shaped 

> "just in case".

> I generally resist that kind of philosophy unless there is science 

> behind it.

> Is anyone using U-shaped pads anymore?

> (Is anyone using MELFs anymore? smile)

>