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1/6 Watt, +/- 5% tolerance PTH resistors. Commonly used in breadboards and perf boards, these 330Ohm resistors make excellent LED current limiters and are great for general use. We've opted for a new and more breadboard-friendly lead thickness (they're a bit thicker than our last ones).
These resistors come in bags of 20.
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Based on 2 ratings:
These little resistors are perfect as current limiting resistors for standard LEDs in a 5v system. I keep a 20 pack w/ my LEDs so I don't have to dig through all my resistors when I'm hooking up LEDs!
These resistors were exactly what I needed and I didn't have to buy a huge assortment to get them.
Good Guy Sparkfun: Gives you extra resistors
Just in case there aren't the right amount.
These are physically the same size as typical 1/8W resistors (body length is 0.2", overall length is 2"), and have a lead diameter of 0.015" (tiny!).