Accelerometer Available in a DIP8 Package - Page 1
Forum section: electronics / general

author: Stephen Hill
author_rank: Regular Contributor
timestamp: April 01, 2012, 07:49:54 pm
content: Hey,I found this accelerometer in an easy to use 8 Pin DIP package. Enjoyhttp://uk.farnell.com/analog-devices/adxl206hdz/accelerometer-dual-axis-imems-8sbdip/dp/1903661CheersStephen

author: SeanB
author_rank: Super Contributor
timestamp: April 01, 2012, 07:52:32 pm
content: Not exactly a cheap item though...............

author: Stephen Hill
author_rank: Regular Contributor
timestamp: April 01, 2012, 07:57:19 pm
content: Indeed.

author: amyk
author_rank: Super Contributor
timestamp: April 02, 2012, 12:10:27 pm
content: SBDIP is going to be expensive. This one also works up to 175C, not far from the melting point of solder!

author: 8086
author_rank: Super Contributor
timestamp: April 02, 2012, 12:23:01 pm
content: Relatedhttps://www.eevblog.com/forum/projects-designs-and-technical-stuff/can-someone-explain-the-price-of-this-component/msg74871/#msg74871

author: T4P
author_rank: Super Contributor
timestamp: April 02, 2012, 12:23:13 pm
content: OOPS .What's the reason for most accelerometers being LGA packages , to prevent unintended flexing of the leads ?

author: Psi
author_rank: Super Contributor
timestamp: April 02, 2012, 12:26:53 pm
content: Quote from: amyk on April 02, 2012, 12:10:27 pmhehe."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"

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: April 02, 2012, 02:48:04 pm
content: Quote from: Dave.S on April 02, 2012, 12:23:13 pmI 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.

author: Unknown
author_rank: Unknown
timestamp: April 02, 2012, 03:08:11 pm
content: 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.

author: Rufus
author_rank: Super Contributor
timestamp: April 02, 2012, 03:32:31 pm
content: Quote from: alm on April 02, 2012, 03:08:11 pmPlenty.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.

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: April 02, 2012, 04:04:34 pm
content: For fans of Mil package porn :http://electricstuff.co.uk/milboards.htmlSomewhere in my box of oddball parts, I have a ceramic DIP-8 which has a decoupling cap integrated on top of the package

author: david77
author_rank: Frequent Contributor
timestamp: April 02, 2012, 05:23:38 pm
content: Nice TO220 devices. Are they what I think they are? The MIL variant of the LM317?

author: Monkeh
author_rank: Super Contributor
timestamp: April 02, 2012, 05:27:02 pm
content: Quote from: david77 on April 02, 2012, 05:23:38 pmThe LM117, actually. They're all from the same series. TO257 package.

author: SeanB
author_rank: Super Contributor
timestamp: April 02, 2012, 07:12:47 pm
content: Surface mounted ceramic packages were available years ago - flatpack units. I used to work with them, still have some around somewhere.

author: T4P
author_rank: Super Contributor
timestamp: April 02, 2012, 08:43:59 pm
content: Quote from: mikeselectricstuff on April 02, 2012, 02:48:04 pmIndeed . Stress from hanging on leads and definitely nobody wants TH packages in volume , unlikemostpeople on diystompboxes which think SMD is plain evil .

author: baljemmett
author_rank: Unknown
timestamp: April 02, 2012, 08:55:57 pm
content: Quote from: mikeselectricstuff on April 02, 2012, 04:04:34 pmOh, now, that's one sexy VAX! Or, well, parts thereof, I guess...

author: Stephen Hill
author_rank: Regular Contributor
timestamp: April 02, 2012, 08:56:48 pm
content: 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?