Author Topic: Accelerometer Available in a DIP8 Package  (Read 9016 times)

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Offline Stephen HillTopic starter

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Accelerometer Available in a DIP8 Package
« on: April 01, 2012, 07:49:54 pm »
Hey,

I found this accelerometer in an easy to use 8 Pin DIP package. Enjoy ;)

http://uk.farnell.com/analog-devices/adxl206hdz/accelerometer-dual-axis-imems-8sbdip/dp/1903661



Cheers
Stephen
 

Offline SeanB

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Re: Accelerometer Available in a DIP8 Package
« Reply #1 on: April 01, 2012, 07:52:32 pm »
Not exactly a cheap item though...............
 

Offline Stephen HillTopic starter

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Re: Accelerometer Available in a DIP8 Package
« Reply #2 on: April 01, 2012, 07:57:19 pm »
Indeed.  ;D
 

Offline amyk

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Re: Accelerometer Available in a DIP8 Package
« Reply #3 on: April 02, 2012, 12:10:27 pm »
SBDIP is going to be expensive. This one also works up to 175C, not far from the melting point of solder!
 


Offline T4P

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Re: Accelerometer Available in a DIP8 Package
« Reply #5 on: April 02, 2012, 12:23:13 pm »
OOPS .  :)
What's the reason for most accelerometers being LGA packages , to prevent unintended flexing of the leads ?
 

Offline Psi

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Re: Accelerometer Available in a DIP8 Package
« Reply #6 on: April 02, 2012, 12:26:53 pm »
SBDIP is going to be expensive. This one also works up to 175C, not far from the melting point of solder!

hehe.

"Well it went like this you see..  The IC was working fine right up until the point where the solder melted and it fell off the pcb"
Greek letter 'Psi' (not Pounds per Square Inch)
 

Offline mikeselectricstuff

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Re: Accelerometer Available in a DIP8 Package
« Reply #7 on: April 02, 2012, 02:48:04 pm »
OOPS .  :)
What's the reason for most accelerometers being LGA packages , to prevent unintended flexing of the leads ?
I would think DIPs, especially plastic ones would be prone to unpredictable stresses during mounting and soldering, but the main reason is simply that nobody wants through-hole packages in volume.
Youtube channel:Taking wierd stuff apart. Very apart.
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alm

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Re: Accelerometer Available in a DIP8 Package
« Reply #8 on: April 02, 2012, 03:08:11 pm »
Except some niche applications requiring a temp range up to 175°C apparently. Did they ever develop extended temp (hermetically sealed ceramic) packages for SMT mounting? Probably not worth the cash investment given the sales volume. Getting the expansion coefficients of the board and IC close enough would probably also be a real issue at 175°C.
 

Offline Rufus

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Re: Accelerometer Available in a DIP8 Package
« Reply #9 on: April 02, 2012, 03:32:31 pm »
Did they ever develop extended temp (hermetically sealed ceramic) packages for SMT mounting?

Plenty.

The funniest thing I have seen is ceramic/metal hermetically sealed versions of TO220 packages. The TO220 package being designed as a plastic replacement for the TO66 metal can package in the first place.
 

Offline mikeselectricstuff

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Re: Accelerometer Available in a DIP8 Package
« Reply #10 on: April 02, 2012, 04:04:34 pm »
For fans of Mil package porn :
http://electricstuff.co.uk/milboards.html

Somewhere in my box of oddball parts, I have a ceramic DIP-8 which has a decoupling cap integrated on top of the package
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Mike's Electric Stuff: High voltage, vintage electronics etc.
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Offline david77

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Re: Accelerometer Available in a DIP8 Package
« Reply #11 on: April 02, 2012, 05:23:38 pm »
Nice TO220 devices. Are they what I think they are? The MIL variant of the LM317?
 

Online Monkeh

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Re: Accelerometer Available in a DIP8 Package
« Reply #12 on: April 02, 2012, 05:27:02 pm »
Nice TO220 devices. Are they what I think they are? The MIL variant of the LM317?

The LM117, actually. They're all from the same series. TO257 package.
 

Offline SeanB

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Re: Accelerometer Available in a DIP8 Package
« Reply #13 on: April 02, 2012, 07:12:47 pm »
Surface mounted ceramic packages were available years ago - flatpack units. I used to work with them, still have some around somewhere.
 

Offline T4P

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Re: Accelerometer Available in a DIP8 Package
« Reply #14 on: April 02, 2012, 08:43:59 pm »
OOPS .  :)
What's the reason for most accelerometers being LGA packages , to prevent unintended flexing of the leads ?
I would think DIPs, especially plastic ones would be prone to unpredictable stresses during mounting and soldering, but the main reason is simply that nobody wants through-hole packages in volume.

Indeed . Stress from hanging on leads and definitely nobody wants TH packages in volume , unlike most people on diystompboxes which think SMD is plain evil .
 

Offline baljemmett

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Re: Accelerometer Available in a DIP8 Package
« Reply #15 on: April 02, 2012, 08:55:57 pm »
For fans of Mil package porn :
http://electricstuff.co.uk/milboards.html

Oh, now, that's one sexy VAX!  Or, well, parts thereof, I guess...
 

Offline Stephen HillTopic starter

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Re: Accelerometer Available in a DIP8 Package
« Reply #16 on: April 02, 2012, 08:56:48 pm »
Someone is the related thread mentioned that these components would be so specialised that it's cheaper to buy the original component rather than designing and certifying a new component.

However, why would someone be buying these components from a distributor like Farnell. Wouldn't they buy them direct from the manufacturer?

 


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