Welcome to Resistance Is Useful!

…your place for resistors and other useful electronics parts to build cool stuff.

After being offline for some time, we have migrated to a new server and are back online.  Let us know if you find anything that doesn't work.

Take a look around. Find parts for your next project. Consider our mini carbon film resistor assortment kits for getting started in electronics. If you have any questions or are looking for a particular part, please contact us at sales@resistanceisuseful.com or call us at (585) 701-1300 (note our new number).

$3.00 flat standard shipping on all US orders.
Free shipping on orders of $25 or more.

Now offering free will-call service to the northern Allegany County, New York area (Short Tract/Fillmore).

Thanks for looking. Be sure to check out our blog, and remember, despite what the Borg may say, Resistance is Useful!

Featured

Cree Bright White LED, Medium Angle, 2 pack

Cree Bright White LED, Medium Angle, 2 pack

Bright cool white LED made by Cree. Perfect for building energy efficient flashlights and low voltag..

$0.89

100 Ohm 1/2 Watt 5% Tolerance Mini Resistors, 10 pack

100 Ohm 1/2 Watt 5% Tolerance Mini Resistors, 10 pack

100 Ohm 1/2 Watt 5% tolerance mini carbon film resistors. Package of 10. These resistors are functi..

$0.69

1000pF 50V 5% NP0/C0G Monolithic Ceramic Capacitor, 5 pack

1000pF 50V 5% NP0/C0G Monolithic Ceramic Capacitor, 5 pack

1000pF, 50VDC, 5% tolerance, non-polarized monolithic ceramic capacitors. Package of 5.High stabil..

$1.79