bobdole369
Electrical
- Dec 9, 2008
- 1
Hi all,
Troubleshooting a circuit board. Have several unmarked blank flat square SMT components labelled FB# such as FB4, FB5, etc. All others on this board read dead short. One reads open. When I bypass this component with a meter in amp mode, all the boards power passes through this, about 500ma - and the board turns on and works as expected.
I suspect FB4 is a fuse. However there exist other components that are labeled F# (F1, F4, etc) that are obvious fuses.
Has anyone seen this notation denoting an ordinary fuse before? Perhaps this is just to differentiate the SMT from the more ordinary fuses?
Troubleshooting a circuit board. Have several unmarked blank flat square SMT components labelled FB# such as FB4, FB5, etc. All others on this board read dead short. One reads open. When I bypass this component with a meter in amp mode, all the boards power passes through this, about 500ma - and the board turns on and works as expected.
I suspect FB4 is a fuse. However there exist other components that are labeled F# (F1, F4, etc) that are obvious fuses.
Has anyone seen this notation denoting an ordinary fuse before? Perhaps this is just to differentiate the SMT from the more ordinary fuses?
