TO-220 Failures due to lead bending?

"directly at the package" would imply that the lead is bent without any support at the package side of the lead?

I've seen such failures with DIP I/C's. I think such bends destroy the little "hermeticity" afforded by the molding process.

I'd support the lead adjacent to the package with some kind clamp so that the plastic is not stressed.

...Jim Thompson

Not in particular but since semiconductor manufacturers give 'No No' imformation about this sort of thing elsewhere you might assume that it is BAD practice. They also give good practice recommendations.

As a result of such warnings it is not something I would 'design in'.

But I'm totally gay and spend most of my time hoping some nice person will post a Candy Samples movie in the Pornstars80s newsgroup.

DNA

Yuk. She was a stripper on Bourbon Street back when I lived in New Orleans. Way high on the bovine-osity scale, in my opinion.

Tempest Storm was pretty classy in her day.

John

What was that gal's name who performed in SF, in a swing, around

...Jim Thompson

Shanda Lear?

Cheers,

Phil Hobbs

What kind of filthy? Black filthy or white streaks filthy?

Best regards, Spehro Pefhany

Carol Doda, the original silicone diva; she performed at the Condor. I saw her show when I was here on a business trip, and aside from the dual deformities, she was actually pretty talented and funny.

"The Condor Club on the corner of Columbus and Broadway was also reputedly the world's first officially recognized strip club. It is now a night club and a municipal landmark."

John

But this is the first time she has appeared in a thread about TO-220 lead failures!

Carol Doda, that's the name I was trying to remember. I was only 28 at the time... I was "entranced" ;-)

...Jim Thompson

I remember having a KitKat with chocolate all the way through.....

Didn't Dolly Parton have similar proportions when she was in 9-5...... and was that a leather dress she wore?

DNA

I got photos from my stag just about being smothered by 'Suzy Boobies'. She must have found a criminally insane doctor to insert that much silicone in a single chest. If she hasn't had them reduced, they're probably dragging on the floor now (almost exactly 17 years ago now). whew.

Best regards, Spehro Pefhany

CD's silicone was directly injected, no baggies. Sounds medically scairy to me.

I like skinny women anyway.

John

She also performed at the Brass Rail in Mountain View in the early 70's. One of her tricks was to hold a full pitcher of beer under one tit and pour it into a beer mug held under the other. Both were frosted from the humidity.

A bunch of us from the engineering group at Memorex often went there for lunch. The roast beef was excellent. One day she came to our table after her act and sat down beside me. I asked her how long did it take to learn how to do that - she replied "A Very Long time."

We gave her a good tip and went back to work.

Regards,

Mike Monett

Slender plus grapefruits ;-)

...Jim Thompson

She had her own club (or at least, she worked in a club that bore her name) when I visited SF with some friends in 70 or 71. Due to quirks in the law of the time, she performed nude on stage (as other apprentice strippers performed nude on little side stages) between acts of a xxx-rated film in which she performed acts which would not be legal to do live.

Sure.

Yes, I saw that same live/film act about that time.

That place was, and still is, the Condor, though she had top billing for some time. It's now a cajun/creole restaurant, I think.

John

Smirk. I was thinking the same thing ;-)

...Jim Thompson

-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | |

Parts should be bent BEFORE placement in the board. This eliminates the tendency for the part to want to spring back and always have tension on it. Under certain conditions, this tension can cause the part to crack apart.