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Archive for April 3rd, 2019

ANENG AN8008/AN8009 Current Sense Resistor

Somewhat to my surprise, Aneng AN8008/AN8009 multimeter PCBS sport what looks like a reasonably accurate current sense resistor on the 10 A input:

AN8009 10 A current shunt - top view
AN8009 10 A current shunt – top view

The legend says 0.01R and the conductor doesn’t look quite like pure copper:

AN8009 10 A current shunt - side view
AN8009 10 A current shunt – side view

The indentations look like clamp marks from the bending jig, rather than “calibration” notches made while squeezing the wire with diagonal cutters and watching the resistance on another meter.

One might quibble about the overall soldering quality, but one would also be splitting hairs. I doubt the meter leads could withstand 10 A for more than a few seconds, anyhow.

If you buy enough of something, you can buy pretty nearly anything you want, even cheap precision resistors!

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