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| riedon inc. 300 cypress avenue alhambra ca 91801 (626) 284-9901 (626) 284-1704 www.riedon.com 06/13 usr unr 2-1410 precision foil resistors type usr 2-1410 unr 2-1410 resistance range 1.0 ohms to 300 kohms 1.0 ohms to 10 kohms power rating (70c) 0.8w tolerances from 1.0 ohms from 5.0 ohms from 25.0 ohms 0.1% / 0.25% / 0.5% / 1% 0.05% / 0.1% / 0.25% / 0.5% / 1% 0.01% / 0.02% / 0.05% / 0.1% / 0.25% / 0.5% / 1% stability 0.01% shelf life stability 25ppm / ?r after 1 year 50ppm / ?r after 3 year temperature coeffcient max. 5ppm/k (-55 to 155c) typ. 3ppm/k (-55 to 125c) upon request 1ppm/k (0 to 60c) insolation resistance > 10gohm thermal emf < 0.1v/k operating temperature range -55 to 155c resistor material nicr-foil substrate al 2 o 3 aln housing pbtp / epoxy connector material cu tinned terminals 2 notes specially designed for applications with fast changing electrical load specifications part description: part type - resistance - tolerance - tcr example: unr 2-1410 3.7ohms 0.5% 3ppm ordering information ? resistances from 1ohm to 300kohms ? power rating to 0.8watt ? resistance tolerances to 0.01% ? tcr to 1ppm/k ? load stability to 0.01%
riedon inc. 300 cypress avenue alhambra ca 91801 (626) 284-9901 (626) 284-1704 www.riedon.com 06/13 0 20 40 60 80 100 120 50 70 85 100 115 130 145 155 power (% from nominal power) ambient temperature (c) derating temperature coeffcient specifications (continued) usr unr 2-1410 precision foil resistors dimensions -800 -600 -400 -200 0 200 400 600 800 -50 -25 0 25 50 75 100 125 -5ppm/k +5ppm/k nominal ?r/r nominal spread 2.3ppm/k nominal spread 2.3ppm/k temperature (c) ?r/r (ppm) dimension mm tol. (mm) inches tol. (inches) a 16.00 1.0 0.63 0.039 b 14.00 0.2 0.55 0.008 c 10.00 0.2 0.39 0.008 d 2.00 0.1 0.08 0.004 e 7.62 0.1 0.30 0.004 f 0.50 0.1 0.02 0.004 g 3.00 0.1 0.12 0.004 h 0.25 0.1 0.01 0.004 |
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