Hi Glenn,
Here’s some ideas from the Editor,
Farnell
http://uk.farnell.com
Part no. 1435952 – a current-sensing 0R1 1%, 3W 2512 resistor
Part no. 2476365 – 6R8 5%, 3W 2512 resistor
My guess is that it shouldn’t matter too much if the 6.8 ohm resistor is 5% not
1% since it works with inductor L2, which will be poorly defined. We will check whether this matters.
Mouser
www.mouser.co.uk
Part no. 71-CRCW25126R81FP – a 1% 6.8 ohm resistor, but it’s only 1W. Again, we
will check to see if the power rating is important.