Please help ID Passive

[Rjc987]

Hi, so I have a hard drive that got wet and fried - there are no obvious failures, nothing let the smoke out but I was just checking components with a meter and there's a small white ceramic surface mount component the size of a normal resistor -- it has 2 terminals, and had D over the number 6 written on it. The board labels it vr3 and it has 2 small traces leading to it, not connected to the ground plane. When I test resistance, it's completely open circuit. I think that might be my culprit but I have no clue what it is. Any ideas?


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[tatus1969]

i would look for a used drive of the exact same type and swap the electronics. that way you might be able to recovet the data on the discs.

[brainwash]

Could be a fuse, those are USUALLY white, but capacitors CAN be white as well. Obviously swapping a cap for a fuse is a bad idea. But if you don't have anything to lose you could connect a multimeter on amps setting to the terminals.
Also check what the other components marked D are. 6 might mean amps. Fuses are usually marked F on the board. Maybe someone designing SMD boards can have a better idea.

[KhronX]

That component description sounds familiar - some time ago (earlier this year) i tried to find some data on a similar-sounding component on a hard-drive PCB.

My searches led me to some Murata datasheet or catalog page, if memory serves, describing it as some sort of shock sensor.

[wraper]

Such questions usually are pointless without providing a picture.

[KhronX]

Is it something like this?

http://www.murata.com/products/sensor/shock/consumer

[lfostano]

My guess is variable resistor, vr usually stands for that but it is only a guess.