I have looked at every capacitor or resistor but I don't know what this kind is called.
Does anyone know what this component is called? It's just a letter "W" in a blue square.
This board is from a Smart TV 55" grafic board.
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2\$\begingroup\$ Only one has a W, the other has an M! \$\endgroup\$– Tom VCommented Sep 26, 2022 at 19:33
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1\$\begingroup\$ W clearly means the part is white. The one below is marmite. \$\endgroup\$– Criticizing Israel not allowedCommented Sep 26, 2022 at 21:12
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3 Answers
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It appears to be a fast acting ceramic fuse rated for 7 amperes.
It looks very much like the Littelfuse "437 Series – 1206 Fast-Acting Fuse"
This table from the datasheet says code W is 7 amperes:
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\$\begingroup\$ Waw. First time i see those kinds a fuses. Thanks. \$\endgroup\$– echo_MeCommented Sep 25, 2022 at 8:40
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\$\begingroup\$ Note how they skipped M. I was gonna make a joke about it being M, but they thought of that... \$\endgroup\$ Commented Sep 26, 2022 at 5:54
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3\$\begingroup\$ This thing about soldering fuses to the PCB still puzzles me... (Yeah, showing my age here). \$\endgroup\$– RmanoCommented Sep 26, 2022 at 7:15
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\$\begingroup\$ You can see the FS1 and FS2 markings on the PCB, which might be related. Would point towards a fuse I believe. \$\endgroup\$– jaskijCommented Sep 26, 2022 at 10:54
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\$\begingroup\$ I wonder how they came up with the current ratings. They are neither R10 nor E12. \$\endgroup\$– jy3u4ocyCommented Sep 27, 2022 at 3:44
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Note the silkscreen markings "FS1" and FS2", indicating they are indeed fuses.
