Determine the component of "SB1" in STM32F407G-DISC1
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‎2024-10-28 9:53 PM - last edited on ‎2024-10-29 3:05 AM by Andrew Neil
Could someone help identify the part number and range for the SB1 component on the STM32F407G-DISC1 board? I'm interested in understanding its exact specifications.
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STM32F4 Series
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‎2024-10-28 10:40 PM
Hi,
SB1 is a Solder Bridge. You can find the specifications from:
https://en.wikipedia.org/wiki/Solder
I hope that helps.
Kind regards
Pedro
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‎2024-10-28 10:57 PM
Is it necessary to keep solder bridge in custorm board ?
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‎2024-10-28 10:59 PM
Only you can decide that...
Kind regards
Pedro
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‎2024-10-29 12:52 AM
Usually not, rhey are there to add flexibility in the design without needing physical jumpers.
Up vote any posts that you find helpful, it shows what's working..
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‎2024-10-29 2:57 AM - edited ‎2024-10-29 3:38 AM
@rohithinthingstech wrote:Could someone help identify the part number and range for the SB1 component on the STM32F407G-DISC1 board? I'm interested in understanding its exact specifications.
As already noted, "SB" is a Solder Bridge:
Just like a Jumper ("JP") it allows a connection to be easily made (closed) or broken (opened) - to allow configuration to a user's requirements.
https://electronics.stackexchange.com/questions/261106/solder-bridge-in-schematics-and-0-resistors
They use these Solder Bridges rather than traditional Jumper links because:
- They are cheaper
- They are smaller
- They are easier for board assembly.
In some cases, rather than just use a "blob" of solder, a zero-ohm resistor (aka "zero-ohm link") will be fitted:
https://en.wikipedia.org/wiki/Zero-ohm_link
Here's an example - where SB53 (at the top) is "closed" with a zero-ohm link, and the others are "open":
Note that, in some cases, the pads of a Solder Bridge may have a track connecting them; eg,
https://www.reddit.com/r/KiCad/comments/p2bg9y/solder_jumper_usage_conceptual_question/
To "break" this kind of bridge, you need to cut that track.
I don't think that ST use this type - but other manufacturers certainly do
#SolderBridge #SB
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‎2024-11-12 11:15 PM
hi, you can refer the SBx as 0 ohm Res on board for cutting or connecting lines .
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