Are those surface mount Schottkys you are using? What size are they...SS24?
Cheers!
Cheers!
Trials & Tribulations of Chip Repairs & Upgrades
4
An F1 DPR chip arrived on my doorstep to be fixed. It looked perfectly OK but would not run when connected to a chassis and tested on a powerbase. After a check of the components, I found that three of the four diodes were not working at all so I replaced them with 1A Schottkys .........
![gallery_11296_1743_37492.jpg]()
All still looking OK ....... time to test my handy work .......
![smile.gif]()
![gallery_11296_1743_38004.jpg]()
Reassembled back onto the testbed, I pulled the throttle back and woomph!
![ohmy.gif]()
... very bright flames & tons of acrid smoke.
As you can see, the dual MOSFETs, top left, has decided to expire. It is a dual MOSFET bereft of any magical smoke, it is an ex-MOSFET.
I wonder if Farnell can help me out in the morning? ......
All still looking OK ....... time to test my handy work .......
Reassembled back onto the testbed, I pulled the throttle back and woomph!
As you can see, the dual MOSFETs, top left, has decided to expire. It is a dual MOSFET bereft of any magical smoke, it is an ex-MOSFET.
I wonder if Farnell can help me out in the morning? ......
1 - 4 of 348 Posts
When I did a search for Schottky's on eBay, I found they had numbers stamped on them.
Here is a link to a Schottky listing:
50 pcs Toshiba Schottky diodes
Cheers!
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Here is a link to a Schottky listing:
50 pcs Toshiba Schottky diodes
Cheers!
2
QUOTE (GregK @ 9 Nov 2014, 03:49) <{POST_SNAPBACK}>The diodes that I use are referred to as microSMP ......
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Thanks, GregK.
From what I have read, the microSMP is a specific packaging size from Vishay:
"Vishay's Schottky rectifiers and TVS devices feature minature MicroSMP package with a space-saving 2.5 mm by 1.3 mm footprint." - digikey
At least that will give us some reference as to the size of the Schottky diodes.
Thanks again.
Cheers!
![]()
Thanks, GregK.
From what I have read, the microSMP is a specific packaging size from Vishay:
"Vishay's Schottky rectifiers and TVS devices feature minature MicroSMP package with a space-saving 2.5 mm by 1.3 mm footprint." - digikey
At least that will give us some reference as to the size of the Schottky diodes.
Thanks again.
Cheers!
1 - 4 of 348 Posts
