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| riedon inc. 300 cypress avenue alhambra ca 91801 (626) 284-9901 (626) 284-1704 www.riedon.com 6/13 usr 2-0808 precision foil resistors type usr 2-0808 resistance range 1.0 to 300 kohms power rating (70c) 0.6w (<100 kohms) 0.4w (>100 kohms) tolerances from 1.0 ohms from 5.0 ohms from 12.0 ohms from 25.0 ohms from 100.0 ohms 0.5% / 1% 0.05% / 0.1% / 0.25% / 0.5% / 1% 0.02% / 0.05% / 0.1% / 0.25% / 0.5% / 1% 0.01% / 0.02% / 0.05% / 0.1% / 0.25% / 0.5% / 1% 0.005% / 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/c (-55 to 155c) typ. 3ppm/c (-55 to 125c) upon request 1ppm/c (0 to 60c) and 1ppm/c (-55 to 125c) insolation resistance > 10gohm thermal emf < 0.1v/c operating temperature range -55 to 155c resistor material nicr-foil substrate al 2 o 3 housing pbtp / epoxy connector material cu tinned terminals 2 specifications part description: part type - resistance - grid type - tolerance - tcr example: usr 2-0808 478 kohms d 0.1% 5ppm ordering information ? resistances from 1ohm to 300kohms ? power rating to 0.6 watts ? resistance tolerances to 0.005% ? tcr to 1ppm/c ? load stability to 0.01% grid d = 3.81mm (0.15inches) lead spacing grid j = 5.08mm (0.2inches) lead spacing if none specifed, grid d is default
riedon inc. 300 cypress avenue alhambra ca 91801 (626) 284-9901 (626) 284-1704 www.riedon.com 6/13 0 20 40 60 80 100 120 50 70 85 100 115 130 145 155 power (% from nominal power) ambient temperature (c) derating -800 -600 -400 -200 0 200 400 600 800 -50 -25 0 25 50 75 100 125 -5ppm/c +5ppm/c nominal ?r/r nominal spread 2.3ppm/c nominal spread 2.3ppm/c temperature (c) ?r/r (ppm) temperature coeffcient specifications (continued) usr 2-0808 precision foil resistors type dimension mm tol. (mm) inches tol. (inches) usr 2-0808 grid d a 28.30 2.0 1.11 0.079 b 7.62 0.1 0.30 0.004 c 8.30 0.2 0.33 0.008 d 2.00 0.1 0.08 0.004 e 3.81 0.1 0.15 0.004 f 2.67 0.1 0.11 0.004 g g (>150kohms) ?0.64 ?0.3 0.1 ?0.03 ?0.012 0.004 usr 2-0808 grid j a 28.00 2.0 1.10 0.079 b 7.49 0.1 0.29 0.004 c 8.00 0.2 0.31 0.008 d 2.00 0.1 0.08 0.004 e 5.08 0.1 0.20 0.004 f 2.49 0.1 0.10 0.004 g g (>150kohms) ?0.64 ?0.3 0.1 ?0.03 ?0.012 0.004 e dimensions |
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