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Open-air resistors perfom at high temps

The OARS-3 Series surface-mount metal alloy strip resistors feature a flameproof, curved open-air design that elevates the device’s “hot spot” above the PCB, letting heat dissipate to ambient air instead of to adjacent thermally -sensitive components. The resistors perform at 3 W, and testing at 4 W reveals the solder joint remains at 110°C or below even when hot-spot temperature exceed 230°C.

The resistors are nominally rated for 3 W at 70°C, with a resistance from 2 to 15 mΩ and tolerances to ±1%. Inductance values are less than 10 nH, with operating temperature ranging from 40° to 125°C. RoHS-compliant and zero Ω-jumper versions are also available. ($0.86 each/1,900 — stock to 14 weeks ARO.)

TT electronics, IRC , Boone , NC
Bryan Yarborough 828-264-8861

http://www.irctt.com

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